All Scala Answers
- what's the easiest way to use reify (get an ast of) an expression in scala?
- scala macros: making a map out of fields of a class in scala
- implementing yield (yield return) using scala continuations
- difference between fold and foldleft or foldright?
- <:< operator in scala
- what are the spark transformations that causes a shuffle?
- how to apply a function to a tuple?
- change nullable property of column in spark dataframe
- doing something before or after all scalatest tests
- perform a typed join in scala with spark datasets
- scala 2.8 canbuildfrom
- why is the aux technique required for type-level computations?
- spark dataframes upsert to postgres table
- apache spark: get number of records per partition
- load scala file into interpreter to use functions?
- spark row to json
- escape a dollar sign in string interpolation
- what is the difference between `##` and `hashcode`?
- accessing the underlying actorref of an akka stream source created by source.actorref
- left anti join in spark?
- use functional combinators on scala tuples?
- scala string vs java.lang.string - type inference
- java 8 stream, getting head and tail
- how to calculate size of dataframe in spark scala
- forward references - why does this code compile?
- no configuration setting found for key 'akka.version'
- update operations on a scala case class
- java.lang.nosuchmethoderror: scala.predef$.refarrayops
- scala and forward references
- replace null values in spark dataframe
- scala: implicit parameter resolution precedence
- spark: transpose dataframe without aggregating
- what are the rules to govern underscore to define anonymous function?
- why does partition parameter of sparkcontext.textfile not take effect?
- scala: why does seq.contains take an any argument, instead of an argument of the sequence type?
- operate on neighbor elements in rdd in spark
- how can i use a scala singleton object in java?
- encode an adt / sealed trait hierarchy into spark dataset column
- how to use java lambdas in scala
- apache spark how to append new column from list/array to spark dataframe
- spark dataframes when udf functions do not accept large enough input variables
- is there a reason not to use sparkcontext.getorcreate when writing a spark job?
- are hlists nothing more than a convoluted way of writing tuples?
- what are scala continuations and why use them?
- how to optimize for-comprehensions and loops in scala?
- easy idiomatic way to define ordering for a simple case class
- what are all the instances of syntactic sugar in scala?
- scala best way of turning a collection into a map-by-key?
- how to clone a case class instance and change just one field in scala?
- use scala parser combinator to parse csv files
- is there a generic way to memoize in scala?
- in scala, what does “view” do?
- sbt stop run without exiting
- scala's '::' operator, how does it work?
- why is function[-a1,…,+b] not about allowing any supertypes as parameters?
- filter spark dataframe on string contains
- why is parameter in contravariant position?
- in scala, what exactly does 'val a: a = _' (underscore) mean?
- why is appending to a list bad?
- scala: convert map to case class
- loaner pattern in scala
- can i zip more than two lists together in scala?
- overload constructor for scala's case classes?
- scala: pass seq to var-args functions
- difference between iterator and stream in scala?
- scala class constructor parameters
- reading json with apache spark - `corrupt_record`
- code to enumerate permutations in scala
- scala sets contain the same elements, but sameelements() returns false
- scala: short form of pattern matching that returns boolean
- the type system in scala is turing complete. proof? example? benefits?
- using varargs from scala
- can't prove that singleton types are singleton types while generating type class instance
- why won't the scala compiler apply tail call optimization unless a method is final?
- convert java map to scala map
- how do i read a large csv file with scala stream class?
- difference between mutablelist and listbuffer
- how to calculate the best numberofpartitions for coalesce?
- how to use third party libraries with scala repl?
- how do i pattern match arrays in scala?
- scala : fold vs foldleft
- scala functional literals with implicits
- returning original collection type in generic method
- scala macros: what is the difference between typed (aka typechecked) an untyped trees
- “unknown artifact. not resolved or indexed” error for scalatest
- getting the index of the current loop in play! 2 scala template
- using context bounds “negatively” to ensure type class instance is absent from scope
- cross product in scala
- scala parallel collections degree of parallelism
- is it possible to have tuple assignment to variables in scala?
- how to compute cumulative sum using spark
- how to get keys and values from maptype column in sparksql dataframe
- why to use empty parentheses in scala if we can just use no parentheses to define a function which does not need any arguments?
- modify collection inside a spark rdd foreach
- how to sort an rdd in scala spark?
- applying an argument list to curried function using foldleft in scala
- how to share version values between project/plugins.sbt and project/build.scala?
- flatten nested json in scala spark dataframe
- type inference on method return type
- how to convert an array to a tuple?
- what is the type of a variable-length argument list in scala?
- how to find max value in pair rdd?
- spark textfile vs wholetextfiles
- access array column in spark
- calculate cosine similarity spark dataframe
- scala: parallel collection in object initializer causes a program to hang
- spark scala: datediff of two columns by hour or minute
- eta-expansion between methods and functions with overloaded methods in scala
- addition of two rdd[mllib.linalg.vector]'s
- unable to map on hlist
- what is the fastest way to write fibonacci function in scala?
- scalac compile yields “object apache is not a member of package org”
- why does scala support shadow variables? [closed]
- error with varargs for function-objects in scala?
- referring to the type of an inner class in scala
- get typetag[a] from class[a]
- scala single method interface implementation
- underscore in list.filter
- scala type programming resources
- best way to parse command-line parameters? [closed]
- java compile speed vs scala compile speed
- what automatic resource management alternatives exist for scala?
- using partial functions in scala - how does it work?
- which programming languages can be used to develop in android?
- difference between case object and object
- list of scala's “magic” functions
- how to use intellij with play framework and scala
- appending an element to the end of a list in scala
- preferred way to create a scala list
- differences between these three ways of defining a function in scala
- how to print the contents of rdd?
- creating a jar file from a scala file
- setting up scala with intellij
- how can i connect to a postgresql database into apache spark using scala?
- forall in scala
- package objects
- scala.concurrent.blocking - what does it actually do?
- can scala actors process multiple messages simultaneously?
- how does scala's (2.8) manifest work?
- how to prevent java.lang.outofmemoryerror: permgen space at scala compilation?
- why avoid subtyping?
- how to convert a java.util.list to a scala list
- how to configure ivy cache directory per-user or system-wide?
- split list into multiple lists with fixed number of elements
- install sbt on ubuntu [closed]
- treating an sql resultset like a scala stream
- how to compare two dataframe and print columns that are different in scala
- scala - modifying nested elements in xml
- better string formatting in scala
- how to split a sequence into two pieces by predicate?
- how to get the last date of a particular month with jodatime?
- what is the forsome keyword in scala for?
- how to use both scala and python in a same spark project?
- best scala imitation of groovy's safe-dereference operator (?.)?
- scala recover or recoverwith
- how to reference external sbt project from another sbt project?
- why can a scala trait extend a class?
- scala asinstanceof with parameterized types
- scala 2.10 reflection, how do i extract the field values from a case class, i.e. field list from case class
- how do i run an sbt main class from the shell as normal command-line program?
- validation versus disjunction
- how to obtain the symmetric difference between two dataframes?
- map versus flatmap on string
- why aren't static methods considered good oo practice? [closed]
- generate a sequence of fibonacci number in scala
- converting map[string,any] to a case class using shapeless
- limits of nat type in shapeless
- how can i convert immutable.map to mutable.map in scala?
- dynamically compiling scala class files at runtime in scala 2.11
- scala repl throws error
- string interpolation in scala 2.10 - how to interpolate a string variable?
- how to restrict actor messages to specific types?
- assembly-merge-strategy issues using sbt-assembly
- add element to a list in scala
- spark scala list folders in directory
- how does one write the pythagoras theorem in scala?
- play framework 2: read the application version defined in build.scala
- how do i access default parameter values via scala reflection?
- efficiently repeat a character/string n times in scala
- how to make a right-associative infix operator?
- spark: long delay between jobs
- how to serve uploaded files in play!2 using scala?
- how to exclude resources during packaging with sbt but not during testing
- difference between function with parentheses and without
- the difference between nonfatal and exception in scala
- how to mock a method with functional arguments in scala?
- isn't the argument type co- not contra-variant?
- is there an api method that compares contents of a seq irrespective of order?
- why does this explicit call of a scala method allow it to be implicitly resolved?
- spark dataframe random uuid changes after every transformation/action
- reading tsv into spark dataframe with scala api
- scala project won't compile in eclipse; “could not find the main class.”
- singletons as synthetic classes in scala?
- “return” and “try-catch-finally” block evaluation in scala
- missing parameter type error by calling toset?
- how is this case class match pattern working?
- is there a safe way in scala to transpose a list of unequal-length lists?
- strange behaviour of the array type with `==` operator
- akka-stream implementation slower than single threaded implementation
- advantages of f-bounded polymorphism over typeclass for return-current-type problem
- scala variable argument list with call-by-name possible?
- spark scala: task not serializable error
- “parameter type in structural refinement may not refer to an abstract type defined outside that refinement”
- spark ml vectorassembler returns strange output
- what is the added value of the kestrel functional programming design pattern? (scala)
- scala: how to define an abstract copyable superclass for any case class?
- concrete classes with abstract type members
- why can auxiliary constructors in scala only consist of a single call to another constructor?
- spark column string replace when present in other column (row)
- in scala, is assignment operator “=” a method call?
- scala - initialization order of vals
- futures do not run before program termination
- how to vectorize dataframe columns for ml algorithms?
- scala-spark dynamically call groupby and agg with parameter values
- broadcast not happening while joining dataframes in spark 1.6
- scalaz bind[seq] typeclass
- accessing scala.none from java
- how to wrap a method having implicits with another method in scala?
- why would i use scala/lift over java/spring? [closed]
- akka kill vs. stop vs. poison pill?
- what are the disadvantages to declaring scala case classes?
- what are the use cases of scala.concurrent.promise?
- understanding scala enumerations
- how is pattern matching in scala implemented at the bytecode level?
- how can i construct and parse a json string in scala / lift
- spark : how to run spark file from spark shell
- clarification needed about futures and promises in scala
- how to access test resources in scala?
- scala: what is the difference between traversable and iterable traits in scala collections?
- what are the biggest differences between scala 2.8 and scala 2.7?
- difference between sparkcontext, javasparkcontext, sqlcontext, and sparksession?
- how to create correct data frame for classification in spark ml
- play 2.x : reactive file upload with iteratees
- how do i setup multiple type bounds in scala?
- how to mix-in a trait to instance?
- sets, functors and eq confusion
- how to create dataframe from scala's list of iterables?
- why does spark fail with java.lang.outofmemoryerror: gc overhead limit exceeded?
- spark final task takes 100x times longer than first 199, how to improve
- scala memoization: how does this scala memo work?
- scala waiting for sequence of futures
- spark rdd default number of partitions
- how do i compare two arrays in scala?
- how in scala to find unique items in list
- adding two columns to existing dataframe using withcolumn
- play's execution contexts vs scala global
- proxies / delegates in scala
- how to pass along csrf token in an ajax post request for a form?
- is scala.net production ready? [closed]
- scala process - capture standard out and exit code
- scala equivalent of python echo server/client example?
- how do i find out apache buildr/maven 2 repo names
- how to transform scala collection of option[x] to collection of x
- why is zipped faster than zip in scala?
- why should one use a http server in front of a framework web server?
- how to reduce seq[either[a,b]] to either[a,seq[b]]?
- why do case class companion objects extend functionn?
- scalatest - how to test println
- scala final vs val for concurrency visibility
- dataframe sample in apache spark | scala
- overriding scala enumeration value
- what is the difference between the methods iterator and view?
- how to implement implicit json writes of embedded object in play framework 2.x
- is there any scala feature that allows you to call a method whose name is stored in a string?
- functional try & catch with scala
- js deferred/promise/future compared to functional languages like scala
- a grasp of immutable datastructures
- merge sort from “programming scala” causes
- class broken error with joda time using scala
- why were the case classes without a parameter list deprecated?
- find the first element that satisfies condition x in a seq
- the argument types of an anonymous function must be fully known. (sls 8.5)
- spark2.1.0 incompatible jackson versions 2.7.6
- scala: method\operator overloading
- scala client composition with traits vs implementing an abstract class
- scala case having 22 fields but having issue with play-json in scala 2.11.5
- calculate the standard deviation of grouped data in a spark dataframe
- scala list function for grouping consecutive identical elements
- contravariance vs covariance in scala
- how to check covariant and contravariant position of an element in the function?
- play framework 2.1: use play.api.configuration in build.scala
- zipwith (mapping over multiple seq) in scala
- case class copy 'method' with superclass
- select specific columns from spark dataframe
- how to append or prepend an element to a tuple in scala
- small example of jackson scala module?
- which characters can i omit in scala?
- how to insert double quotes into string with interpolation in scala
- how can i define a custom equality operation that will be used by immutable set comparison methods
- changing ivy cache location for sbt projects in intellij idea?
- slick 2.0 generic crud operations
- is there an equivalent to suppresswarnings in scala?
- turning a => m[b] into m[a => b]
- does scala have an equivalent to c# yield?
- what code is generated for an equals/hashcode method of a case class?
- why is list a semigroup but seq is not?
- number of cpus per task in spark
- how to invoke the scala compiler programmatically?
- selecting a range of elements in an array spark sql
- how do i create an explicit companion object for a case class which behaves identically to the replaced compiler provided implicit companion object?
- spark : db connection per spark rdd partition and do mappartition
- how can i pattern match on a range in scala?
- is it possible to use a java 8 style method references in scala?
- scala map#get and the return of some()
- coalesce reduces parallelism of entire stage (spark)
- cancellation with future and promise in scala
- scala by-name parameter on a anonymous function
- attach metadata to vector column in spark
- how do i create an instance of a trait in a generic method in scala?
- slick codegen & tables with > 22 columns
- failed to initialize compiler: object java.lang.object in compiler mirror not found
- what is a dlist?
- how do you call a scala singleton method from java?
- scala, currying and overloading
- can i import from multiple packages all at once in scala?
- simple scala pattern for “using/try-with-resources” (automatic resource management)
- how can i calculate exact median with apache spark?
- understanding the aux pattern in scala type system
- compile tests with sbt and package them to be run later
- spark kryo: register a custom serializer
- use case and examples for type pattern with type variable
- lazy cartesian product of several seqs in scala
- how to create a custom transformer from a udf?
- spark and sparksql: how to imitate window function?
- embedded scala repl inherits parent classpath
- is there a simple example of how to generate verilog from chisel3 module?
- how to write to hdfs using scala
- parallel file processing in scala
- how to check constructor arguments and throw an exception or make an assertion in a default constructor in scala?
- spark and not serializable datetimeformatter
- printing unicode from scala interpreter
- scala: binary incompatibility between releases
- getting parameters from scala macro annotation
- how to deal with error spark-5063 in spark
- how to convert a string column with milliseconds to a timestamp with milliseconds in spark 2.1 using scala?
- classtag based pattern matching fails for primitives
- dynamically parametrize poly1 function in shapeless
- scala spark: split collection into several rdd?
- spark count vs take and length
- in scala, are there any condition where implicit view won't be able to propagate to other implicit function?
- good scalaz introduction [closed]
- understanding what 'type' keyword does in scala
- pattern matching with conjunctions (patterna and patternb)
- what's the standard way to work with dates and times in scala? should i use java types or there are native scala alternatives?
- building a scala app with maven (that has java source mixed in)
- is future in scala a monad?
- difference between abstract class and trait
- akka http: blocking in a future blocks the server
- what's the best scala build system? [closed]
- where can i learn about constructing ast's for scala macros?
- using comparison operators in scala's pattern matching system
- how do i view the type of a scala expression in intellij
- intellij idea report highlighting error when using routes in controller
- how to decode an adt with circe without disambiguating objects
- how do i sort an array in scala?
- sbt test-dependencies in multiprojects: make the test-code available to dependent projects
- why is scala's type inference not as powerful as haskell's?
- scala equivalent to python generators?
- creating a flow from actor in akka streams
- private and protected constructor in scala
- tuple unpacking in map operations
- how do i convert a map[int, any] to a sortedmap in scala? or a treemap?
- how to convert an int to a string of a given length with leading zeros to align?
- maven package works but intellij's build fails
- how to have eclipse recognize dependencies from sbt
- how to see dependency tree in sbt?
- functional programming - lots of emphasis on recursion, why?
- sbt doesn't find file in local maven repository although it's there
- how to read a text file with mixed encodings in scala or java?
- functions without arguments, with unit as argument in scala
- what is rdd in spark
- passing function as block of code between curly braces
- persistent data structures in scala
- sbt to maven converter
- future[option] in scala for-comprehensions
- making stand-alone jar with simple build tool
- scala: join an iterable of strings
- how does the pyspark mappartitions function work?
- ternary operator similar to ?:
- what is an idiomatic scala way to “remove” one element from an immutable list?
- practical examples of using symbols in scala?
- how to force logger.debug output in play! framework specs2 tests?
- sbt sources in idea
- shapeless - turn a case class into another with fields in different order
- what are views for collections and when would you want to use them?
- how should i think about scala's product classes?
- how to chain multiple different inputstreams into one inputstream
- practical uses of a dynamic type in scala
- scala - how to print case classes like (pretty printed) tree
- how to convert string to date time in scala?
- automated java to scala source code conversion? [closed]
- sparksql - read parquet file directly
- how to get methods list in scala
- idiomatic way to update value in a map based on previous value
- scala spark dataframe : dataframe.select multiple columns given a sequence of column names
- why are classes inside scala package objects dispreferred?
- scala: how to merge a collection of maps
- slick 3.0 insert and then get auto increment value
- how to use s3 with apache spark 2.2 in the spark shell
- use of option helper in play framework 2.0 templates
- 22 fields limit in scala 2.11 + play framework 2.3 case classes and functions
- how can scala receive multiple parameters in a method definition?
- what is the scala equivalent of java's classname.class?
- mutable vs. immutable in scala collections
- why is “abstract override” required not “override” alone in subtrait?
- scala: how can i replace value in dataframes using scala
- in scala; should i use the app trait?
- how to sort a scala.collection.map[java.lang.string, int] by its values?
- scala - scheduledfuture
- get companion object of class by given generic type scala
- how to add a new struct column to a dataframe
- what does predef.locally do, and how is it different from predef.identity
- how is scala generating byte code? using some libraries like asm, or write binary directly?
- how to create an instance of type t at runtime with typetags
- how much is there to linq?
- covariant type a occurs in contravariant position in type a of value a
- play framework - add a field to json object
- difference between scala's existential types and java's wildcard by example?
- how to turn off parallel execution of tests for multi-project builds?
- re-download a snapshot version of a dependency using sbt
- filename too long sbt
- why is scala's syntax for tuples so unusual?
- how to change a column position in a spark dataframe?
- define your own exceptions with overloaded constructors in scala
- why does spark application fail with “classnotfoundexception: failed to find data source: kafka” as uber-jar with sbt assembly?
- rolling your own reducebykey in spark dataset
- configure ant for scala
- difference between map and mapasync
- how to join two dataframes in scala and apache spark?
- “mytype” problem: do i have to use abstract types (or generics) in scala to return the actual class?
- implementing iftrue, iffalse, ifsome, ifnone, etc. in scala to avoid if(…) and simple pattern matching
- how to implement actor model without akka?
- what's the point of declaring an object as “final”?
- difference between trait inheritance and self type annotation
- how to define an ordering in scala?
- formatting binary values in scala
- scala: companion object purpose
- algorithm to calculate the number of combinations to form 100
- spark + scala transformations, immutability & memory consumption overheads
- spark - how to create a sparse matrix from item ratings
- scala - how to define a structural type that refers to itself?
- what is scala's experimental virtual pattern matcher?
- how to find duplicates in a list?
- convert a list of options to an option of list using scalaz
- does sbt build against scala 2.11?
- can scala call by reference?
- play framework for scala: compilation error[type application is not a member of package controllers]
- how to exclude transitive dependencies of other subproject in multiproject builds?
- pattern matching structural types in scala
- scala finally block closing/flushing resource
- spark udf called more than once per record when df has too many columns
- why is the error “unable to find encoder for type stored in a dataset” when encoding json using case classes?
- how do i tell sbt to use a nightly build of scala 2.12 or 2.13?
- what is the scala case class equivalent in pyspark?
- how to set up implicit conversion to allow arithmetic between numeric types?
- optimize spark job that has to calculate each to each entry similarity and output top n similar items for each
- replicate spark row n-times
- how to use sqlcontext and sparkcontext inside foreachpartition
- scala's lazy arguments: how do they work?
- convert from scala.collection.seq<string> to java.util.list<string> in java code
- java.lang.noclassdeffounderror: scala/product$class
- when to use option
- what are nested/unnested packages in scala 2.8?
- how to flatten a collection with spark/scala?
- scala/spark app with “no typetag available” error in “def main” style app
- convert any type in scala to array[byte] and back
- why does scala's semicolon inference fail here?
- how to unzip a zip file using scala?
- spark streaming mapwithstate seems to rebuild complete state periodically
- when is a return type required for methods in scala?
- transforming scala varargs into java object… varargs
- why does seq.contains accept type any rather than the type parameter a?
- how to catch slick postgres exceptions for duplicate key value violations
- type inferred to nothing in scala
- reflection on a scala case class
- how to set up a local development environment for scala spark etl to run in aws glue?
- how to use spark sql dataframe with flatmap?
- spark - sum of row values
- what's the performance impact of converting between `dataframe`, `rdd` and back?
- difference between sc.broadcast and broadcast function in spark sql
- does scala have guards?
- how to change scala version for sbt project?
- simulate input from stdin when running a scala program in intellij
- how to uncache rdd?
- how to remove an item from a list in scala having only its index?
- convert a java future to a scala future
- mocking scala object
- why use curly braces over parentheses?
- how do i sort a collection of lists in lexicographic order in scala?
- creating a daterange scala, joda, java
- filtering rows based on column values in spark dataframe scala
- why in scala long cannot in initialized to null whear as integer can
- idiomatic table cell renderers in scala
- scala, erastothenes: is there a straightforward way to replace a stream with an iteration?
- how to require typesafe constant-size array in scala?
- apply several string transformations in scala
- cumulative sum in spark
- in scala, can you make an anonymous function have a default argument?
- setting up sbt environment to hack on multiple libraries at once
- filter a list according to multiple contains
- list files on s3
- slick: query multiple tables/databases with getting column names
- add new column in dataframe base on existing column
- how do i exclude/rename some classes from import in scala?
- why is a `val` inside an `object` not automatically final?
- what is the _root_ package in scala?
- what does “forward reference extends over definition of value” mean in scala?
- re-run with -feature for details
- abstract type pattern is unchecked since it is eliminated by erasure
- generic wildcards in variable declarations in scala
- what is the difference between try and either?
- scala: is it possible to override default case class constructor?
- maven: mixing java and scala in one project
- how to convert a nested scala collection to a nested java collection
- routes with optional parameter - play 2.1 scala
- deep-reverse of nested lists in scala
- scala: can i declare a public field that will not generate getters and setters when compiled?
- how to change the column type from string to date in dataframes?
- how to use joda datetime with play json
- how to pre-package external libraries when using spark on a mesos cluster
- how do i create “options objects” in scala.js?
- merging a list of strings using mkstring vs foldright
- expand a set[set[string]] into cartesian product in scala
- how to add logging function in sending and receiving action in akka
- scala reflection to instantiate scala.slick.lifted.tablequery
- not able to declare string type accumulator
- spark ml - save onevsrestmodel
- scala: existential types for a map
- how to use column.isin with array column in join?
- using 'case' in pairrddfunctions.reducebykey()
- how to unwind array in dataframe (from json)?
- scala popup menu
- can java run a compiled scala code?
- how to split string with trailing empty strings in result?
- why can't a variable be a stable identifier?
- read parquet files from scala without using spark
- get head item and tail items from scala list
- why “case class” doesn't need “new” to create a new object
- how can i call another task from my sbt task?
- difference between org.apache.spark.ml.classification and org.apache.spark.mllib.classification
- scala - can yield be used multiple times with a for loop?
- why does iterator have a contains method but iterable does not, in scala 2.8?
- how to inform sbt to consume specific scala version for plugins?
- does scala anyref.clone perform a shallow or deep copy?
- split up a list at each element satisfying a predicate (scala)
- scala - combine two lists in an alternating fashion
- sparksql error table not found
- could you share a link to an url parsing implementation? [closed]
- intellij idea debug jumps inside instead of going over
- why does leaving the dot out in foldleft cause a compilation error?
- scala: circular reference while creating object?
- twitter says scala can't emit a raw unvarnished volatile field. true?
- why scala's pattern maching does not work in for loops for type matching?
- how to print accumulator variable from within task (seem to “work” without calling value method)?
- specs2: how to test a class with more than one injected dependency?
- register udf to sqlcontext from scala to use in pyspark
- overriding arithmetic operators on int via implicit conversions
- what is the suggested way to instantiate a js.object for api wrappers
- how to transpose dataframe in spark 1.5 (no pivot operator available)?
- how to use kafka.group.id and checkpoints in spark 3.0 structured streaming to continue to read from kafka where it left off after restart?
- convert array of string column to multiple columns in spark scala
- cumulative product in spark?
- how to build a multimap from a list of tuples in scala?
- how to suppress “match is not exhaustive!” warning in scala
- trying to cross compile a project to scala 2.11 fails with “error while loading object, missing dependency 'object scala in compiler mirror'”
- what's scala's idiomatic way to split a list by separator?
- how to override a mutable variable in trait in scala?
- “can't existentially abstract over parameterized type…”
- 'spread' parameters in scala?
- by-name repeated parameters
- playframework jsvalue in html template
- count occurrences of each element in a list[list[t]] in scala
- scala for comprehensions/loops and typed patterns
- mongo update query given error
- ambiguous schema in spark scala
- how to compute the inverse of a rowmatrix in apache spark?
- scala lists with existential types: `map{ case t => … }` works, `map{ t => … }` doesn't?
- how to compare every element in the rdd with every other element in the rdd ?
- how to implement the ski combinator calculus with match types?
- why is there a difference in behavior between these two pattern matches in a for comprehension?
- play - how to use different configuration files for dev/prod?
- scala kleisli throws an error in intellij
- generate data by using existing dataset as the base dataset
- implicit view not working - is my implicit def to blame?
- slick 3 reusable generic repository
- scala self-type: value is not a member error
- write this scala matrix multiplication in haskell
- combining 2 options into 1
- scala tuple deconstruction
- scala operator oddity
- spark dataframe handing empty string in onehotencoder
- how to get the typetag for a class in java
- anorm like clause with string interpolation
- scala: compile time constants
- inheritance and code reuse in stackable traits
- how to access local files in spark on windows?
- “private[syntax]” in scala
- how to convert rdd to list effectively without using collect function
- slick 3.0-rc3 fails with java.util.concurrent.rejectedexecutionexception
- defining `reads` for json set type
- problems with sbt dependencies in intellij idea
- why akka streams cycle doesn't end in this graph?
- scala - muliline string split
- slick 3.0 - update columns in a table and return whole table object?
- why can't scala find my typeclass instance defined implicitly in the companion object, when the typeclass is not in a dedicated source file?
- how to find the symmetrical duplicate columns(2 columns) using spark dataframe in scala?
- have a list in play framework web service parameters
- pass implicit parameter through multiple objects
- what does “coalgebra” mean in the context of programming?
- scala framework for a rest api server? [closed]
- what is “lifting” in scala?
- scala vs java, performance and memory? [closed]
- how are the multiple actors implementation in scala different?
- difference between array and list in scala
- scala actors - worst practices? [closed]
- intellij scala plugin's case class indentation is absurd
- debunking scala myths [closed]
- chart of ienumerable linq equivalents in scala?
- intellij idea 12 + android + scala nowadays
- what's the best way to inverse sort in scala?
- scala actors: receive vs react
- are fp and oo orthogonal?
- extract column values of dataframe as list in apache spark
- what makes scala's operator overloading “good”, but c++'s “bad”? [closed]
- elements of scala style? [closed]
- hidden performance cost in scala?
- efficient iteration with index in scala
- what is the difference between build.sbt and build.scala?
- how to read environment variables in scala
- what is the difference between a class and a type in scala (and java)?
- doing http request in scala
- convert list of tuple to map (and deal with duplicate key ?)
- disadvantages of scala type system versus haskell?
- java <-> scala interop: transparent list and map conversion
- scala doubles, and precision
- create simple project sbt 0.10.x
- simple and concise http client library for scala
- why does a small change to this scala code make such a huge difference to performance?
- how to filter none's out of list[option]?
- impredicative types vs. plain old subtyping
- how can i use map and receive an index as well in scala?
- pattern matching vs if-else
- how to deploy my spray api into production?
- why doesn't scala have static members inside a class?
- are options and named default arguments like oil and water in a scala api?
- iterate over lines in a file in parallel (scala)?
- scala downwards or decreasing for loop?
- scala capture group using regex
- does the @inline annotation in scala really help performance?
- scala: set a field value reflectively from field name
- is it possible in scala to force the caller to specify a type parameter for a polymorphic method?
- pattern matching `@` symbol
- what is the order of the scala compiler phases?
- scala to json in play framework 2.1
- how can i convert a java iterable to a scala iterable?
- date conversion
- can i do aspect oriented programming in scala?
- why aren't there many discussions about co- and contra-variance in haskell (as opposed to scala or c#)?
- what exactly makes option a monad in scala?
- specific config by environment in scala
- how to change attribute on scala xml element
- spark build custom column function, user defined function
- is there a brief syntax for executing a block n times in scala?
- are there any methods included in scala to convert tuples to lists?
- getting object instance by string name in scala
- confused how to set up a multi-project sbt project
- in spark, what is the right way to have a static object on all workers?
- is lisp the only language with repl?
- how to check whether key or value exist in map?
- filter spark dataframe by checking if value is in a list, with other criteria
- joda datetime field on play framework 2.0's anorm
- why sbt runs dependency resolution every time after clean?
- compiling scala before / alongside java with gradle
- right arrow meanings in scala
- slick how to define bidirectional one-to-many relationship for use in case class
- calculating prime numbers in scala: how does this code work?
- what is the difference between unapply and unapplyseq?
- best way to turn a lists of eithers into an either of lists?
- which scala mutable list to use?
- recursive set union: how does it work really?
- how to write reads[t] and writes[t] in scala enumeration (play framework 2.1)
- is there something like linq for java? [closed]
- passing a shapeless extensible record to a function
- context bounds shortcut with higher kinded-types
- noise free json format for sealed traits with play 2.2 library
- scala giving me “illegal start of definition”
- how to split strings into characters in scala
- can a range be matched in scala?
- checking if values in list is part of string
- what replaces class variables in scala?
- dataframe equality in apache spark
- joining two dataframes in spark sql and selecting columns of only one
- is non-local return in scala new?
- sbt including the version number in a program
- scala - dynamic object/class loading
- how to create hive table from spark data frame, using its schema?
- how can i transform a map to a case class in scala?
- create array of literals and columns from list of strings in spark sql
- how to write jdbc sink for spark structured streaming [sparkexception: task not serializable]?
- akka 2.1 minimal remote actor example
- motivation for scala underscore in terms of formal language theory and good style?
- in scala how do i remove duplicates from a list?
- intellij compile failures: “is already defined as”
- how to choose a random element from an array in scala?
- how to resolve the analysisexception: resolved attribute(s) in spark
- how to get the element index when mapping an array in scala?
- why do i get a “missing parameter for expanded function” in one case and not the other?
- multiple executable jar files with different external dependencies from a single project with sbt-assembly
- spark runs on yarn cluster exitcode=13:
- different types in map scala
- add a compile time only dependency in sbt
- intellij idea setup for scala, clarification needed
- how can i get the current sparksession in any place of the codes?
- ambiguous reference to overloaded definition - one vs two parameters
- how can i tell what scala version a .class file was compiled with?
- overriding multiple config values in typesafe config when using an uberjar to deploy
- combining futures, eithers and options in for comprehensions
- how to map variable names to features after pipeline
- how to force interpreter show complete stack trace?
- multiple packages definition
- what's the difference between `::` and `+:` for prepending to a list)?
- adaptation of argument list by inserting () has been deprecated
- scala, android and eclipse
- slick 3.0 bulk insert or update (upsert)
- one repl to bind them all?
- how to add elements to source dynamically?
- how to reduce scala (/ java) startup overhead?
- scala: making implicit conversion a->b work for option[a] -> option[b]
- why is my object not a member of package <root> if it's in a separate source file?
- understanding the tilde in scala's parser combinators
- how to use tailcalls?
- what is the difference between arraybuffer and array
- scala and html parsing
- scala remote actors
- why do monads not compose in scala
- ignore dtd specification in scala
- sequencing an hlist
- scala ast in scala [closed]
- upload zip file using --archives option of spark-submit on yarn
- how to use from_json with kafka connect 0.10 and spark structured streaming?
- how to merge two columns of a `dataframe` in spark into one 2-tuple?
- scala: return has its place
- how to create a row from a list or array in spark using scala
- how to use scala reflection api to get all contained classes
- polymorphic scala return type
- strongly typed access to csv in scala?
- how to iterate records spark scala?
- concatenating datasets of different rdds in apache spark using scala
- what is a diverging implicit expansion error?
- view sql query in slick
- how to flatten list of options using higher order functions?
- how to disable gradle daemon in intellij idea?
- what is the standard idiom for implementing equals and hashcode in scala?
- generating a frequency map for a string in scala
- reading multiple files from s3 in spark by date period
- how to produce nicely formatted xml in scala?
- multiple joins with slick
- adding a column of rowsums across a list of columns in spark dataframe
- how to add columns into org.apache.spark.sql.row inside of mappartitions
- best practice for shifting a sequence in a circular manner
- creating the most basic scala project with maven?
- rely on methods of case class in trait
- how to make a jar file from scala
- flatten scala try
- scala build crashed
- attempting to model f-bounded polymorphism as a type member in scala
- serializing a scala list to json in play2
- sbt test error: java.lang.nosuchmethoderror: net.jpountz.lz4.lz4blockinputstream
- how do i archive multiple files into a .zip file using scala?
- play framework: dependency inject action builder
- scheduled executor in scala
- map[string,any] to compact json string using json4s
- how do i use a @serializable scala object?
- how to convert an rdd[row] back to dataframe
- insert a new element in a specified position of a list
- scala - spark : how to union all dataframe in loop
- why persist () are lazily evaluated in spark
- using spark udfs with struct sequences
- instantiate object with reflection using constructor arguments
- 1 :: list[nothing] in foldleft
- mapping hash map key/value pairs to named constructor arguments in scala
- apache spark sql group data by range
- how can i get the name of an akka actor from within the actor itself?
- why some(null) isn't considered none?
- “value $ is not a member of stringcontext” - missing scala plugin?
- how to combine option values in scala?
- case classes with optional fields in scala
- in scala pattern matching, what is suspicious shadowing by a variable pattern?
- mockito matchers, scala value class and nullpointerexception
- on demand actor get or else create
- spark: task not serializable for udf on dataframe
- why does groupby in scala change the ordering of a list's items?
- how to “negative select” columns in spark's dataframe
- what is the idiomatic way to pattern match sequence comprehensions?
- how to programmatically ignore/skip tests with scalatest?
- what does “trait a <: b” mean?
- how to estimate the serialization size of objects in java without actually serializing them?
- force initialization of scala singleton object
- scala: how to create a map[k,v] from a set[k] and a function from k to v?
- in scala, is it possible to zip two lists of differing sizes?
- map flatten and flatmap not equivalent
- splitting string into groups
- is the partialfunction design inefficient?
- intellij: sbt-based scala project does not build with java 9
- enabling the macro-paradise scala compiler plugin in maven projects
- adding a nested column to spark dataframe
- read files recursively from sub directories with spark from s3 or local filesystem
- serialization of scala functions
- what is the advantage of using scala pattern matching instead of java switch case?
- spurious ambiguous reference error in scala 2.7.7 compiler/interpreter?
- get all the classes that implements a trait in scala using reflection
- basic usage of dispatch 0.9
- how to profile the time spent for a task in sbt
- pattern matching over non-case class in scala
- deduplication error with sbt assembly plugin
- use more than one collect_list in one query in spark sql
- what is the right way to edit spark-env.sh before running spark-shell?
- spark dataframe write to kafka topic in avro format?
- how to do an instanceof check with scala(test)
- scala: elegant conversion of a string into a boolean
- what is and when to use scala's forsome keyword?
- what is the purpose of `scala-2.11` folder in intellij idea
- how to force sbt to use java 8?
- is it possible to alias columns programmatically in spark sql?
- convert a list into an option if it is populated
- why do we need to add “fork in run := true” when running spark sbt application?
- why can't the first parameter list of a class be implicit?
- how do i write a scala unit test that ensures compliation fails?
- why does scala have path-dependent types?
- akka-http: accept and content-type handling
- scala default set implementation
- scala: how to create xml nodes from some collection
- parsing of binary data with scala
- what's a zip join? have you ever heard of that, or a pairwise join?
- set the parallelism level for all collections in scala 2.10?
- how to set default dependencies for all subprojects in sbt?
- scala.tools.nsc.imain within play 2.1
- subtype in scala: what is “type x <: y”?
- eclipse scala.object cannot be resolved
- using futures within spark
- how to correctly schedule task in play framework 2.4.2 scala?
- generating all possible combinations from a list[list[int]] in scala
- play: additional public / assets directory
- can we able to use mulitple sparksessions to access two different hive servers
- how to pass a list of paths to spark.read.load?
- scala circe with generics
- is it possible to install a callback after request processing is finished in spray?
- issue: scala code in spark shell to retrieve data from hbase
- immutable scala map implementation that preserves insertion order
- how to use scala.none from java code
- how does | (pipe) in pattern matching work?
- why doesn't the scala list have a size field?
- error: expected class or object definition
- missing import scala.collection.parallel in scala 2.13
- sbt fails with java.lang.noclassdeffounderror: sbt/consoleout$
- how to qualify methods as static in scala?
- extract label values from a labelledgeneric instance
- scala: remove none elements from map and flatten
- find all implicits
- intellij idea: cannot import sbt project
- how to set heap size in play/activator?
- intellij idea hotkey for comment does not work with scala
- companion class requires import of companion object methods and nested objects?
- what is the java equivalent of a scala object?
- how to generate type hierarchy diagrams with scaladoc?
- import multiple packages in scala repl
- how does the notnull trait work in 2.8 and does anyone actually use it?
- custom scala enum, most elegant version searched
- is there an iteratee-like concept which pulls data from multiple sources?
- how do i setup multiple ored type bounds in scala
- encoding scala none to json value using circe
- is it bad practice to send an actor a message from something which is not an actor?
- shapeless: generic lens parameterized by case class or field
- converting multiple different columns to map column with spark dataframe scala
- monte carlo calculation of pi in scala
- existensial types in scala
- using scala sys.process with single quotes, white-space, pipes etc
- writing type class instances for nested classes in scala
- in scala, how do you define a local parameter in the primary constructor of a class?
- how to access parameter list of case class in a dotty macro
- iterate over a tuple
- map from class[t] to t without casting
- is there any difference between flatten and flatmap(identity)?
- comparison in scala
- scala for comprehension performance
- org.apache.spark.sparkexception: task not serializable
- how to do custom operations on groupeddata in spark?
- in apache spark, what is the difference between using mappartitions and combine use of broadcast variable and map
- how to (equally) partition array-data in spark dataframe
- sbt cross building - choosing a different library version for different scala version
- why makes calling error or done in a bodyparser's iteratee the request hang in play framework 2.0?
- bad use cases of scala.concurrent.blocking?
- addition with generic type parameter in scala
- overriding vals in scala
- spark: sc.wholetextfiles takes a long time to execute
- play2 framework proxy streaming content to client keeps connection open after streaming is done
- using java libraries in scala
- how to convert x => option[r] to partialfunction[x,r]
- how do you define an @interface in scala?
- scala inheritance from java class: select which super constructor to call
- scala: curried constructors
- scala - booleans - & vs &&, | vs ||
- how does sbt choose which scala version to use?
- turn slick logging off
- how to use scala.collection.immutable.list in a java code
- why am i getting this error when running scala 2.13 tests in intellij, but not with scala 2.12?
- in scala multiple inheritance, how to resolve conflicting methods with same signature but different return type?
- how to clone an iterator?
- how does curly braces following trait instantiation work?
- how can i use primitives in scala?
- why can't _ be used inside of string interpolation?
- play scalajson reads[t] parsing validationerror(error.path.missing,wrappedarray())
- spark sql filter multiple fields
- how to expand size of java stack trace to see bottom of stack? (triggering a )
- distributed map in scala spark
- managing imports in scalaz7
- how can i use gson in scala to serialize a list?
- composing a list of all pairs
- object scala in compiler mirror not found - running scala compiler programmatically
- dealing with the surprising lack of parlist in scala.collections.parallel
- write and read raw byte arrays in spark - using sequence file sequencefile
- decreasing for loop in scala?
- error: could not retrieve sbt 0.11.3 when running existing project in play 2.1.0?
- idiomatic scala way to deal with base vs derived class field names?
- spark 2.0 implicit encoder, deal with missing column when type is option[seq[string]] (scala)
- java.lang.boolean to scala.boolean question
- error when spark 2.2.0 standalone mode write dataframe to local single-node kafka
- why scala doesn't infer type from generic type parameters?
- creating a method definition tree from a method symbol and a body
- spark dataset : example : unable to generate an encoder issue
- relating parameterized types
- weird behavior of & function in set
- some questions about difference between call-by-name and 0-arity functions
- kryo serialization refuses to register class
- what's a simple (scala only) way to read in and then write out a small .csv file passing through a list[list[string]]?
- spark - how many executors and cores are allocated to my spark job
- scala reflection: getdeclaringtrait?
- how do you stop building an option[collection] upon reaching the first none?
- how to run subprojects tests (including setup methods) sequentially when testing
- 22 column limit for procedures
- scala macro to print code?
- write/store dataframe in text file
- are futures in scala really functional?
- getting reference to a parameter of the outer function having a conflicting name
- assured 6 digit random number
- play slick and async - is it a race condition?
- spark (scala) dataframes - check whether strings in column contain any items from a set
- hive error : exception in thread “main” java.lang.noclassdeffounderror: scala/collection/iterable
- scala graph cycle detection algo 'return' needed?
- how to model an entity with many children in sorm?
- how to read a file from hdfs in map() quickly with spark
- can actors in scala fail to process messages? (example in o'reilly's programming scala)
- coalesce duplicate columns in spark dataframe
- finding percentile in spark-scala per a group
- nlineinputformat not working in spark
- using eithers with scala “for” syntax
- package private modifier in scala 2.8
- reducebykey method not being found in scala spark
- inheriting a trait twice
- play 2 - set header on all responses?
- scala: “no manifest available for type t”
- strange error message: bad symbolic reference. a signature in package.class refers to term apache in package org which is not available
- object is not a value error in scala
- scala: overriding generic java methods ii
- how to perform transpose on list of lists in scala?
- joda datetime format cause null pointer error in spark rdd functions
- using scala vararg methods in java
- scala.concurrent.forkjoin.forkjoinpool vs java.util.concurrent.forkjoinpool
- spark dataframe equivalent to pandas dataframe `.iloc()` method?
- is there a standard scala function for running a block with a timeout?
- test if implicit conversion is available
- error when trying to write to hdfs: server ipc version 9 cannot communicate with client version 4
- deserialization of case object in scala with json4s
- avoiding scala memory leaks - scala constructors
- define custom configuration in sbt
- how to convert keys in a map to lower case?
- in scala reflection, how to get generic type parameter of a concrete subclass?
- scala spark - split vector column into separate columns in a spark dataframe
- playframework plugin non-functional in intellij idea 12
- is there a java stream method equivalent to scala's collections “collect”?
- how to apply a function to a column of a spark dataframe?
- explode multiple columns in spark sql table
- the differences between underscore usage in these scala's methods
- string interpolation, escaping quotation mark
- in spark streaming, is there a way to detect when a batch has finished?
- overriding onrouterequest with custom handler in play! scala
- rdd to labeledpoint conversion
- scala map containing mix type values
- cannot serialize localdate in mongodb
- proper class hierarchy for 2d and 3d vectors
- equality of functions in scala, is functions objects in scala?
- spark broadcast error: exceeds spark.akka.framesize consider using broadcast
- spark join produces wrong results
- scala - grouping on an ordered iterator lazily
- why apache spark take function not parallel?
- using dynamic datasource with tomcat
- how to create a wrapper of list with a specific type
- how to use scala macros to create a function object (to create a map[string, (t) => t])
- spark apply function to columns in parallel
- using regex in standardtokenparsers
- type inference with existential type
- spark: broadcasting jackson objectmapper
- spark sample is too slow
- typed façade for js library in scala.js
- call solr asynchronous from play framework
- how to read pdf files and xml files in apache spark scala?
- play scala form helper with custom html
- how to order execution of tests in sbt?
- how to add custom directory to scala sbt project?
- how to replace empty values in a column of dataframe?
- scala: splitting with double quotes (“”) vs single quotes ('')
- problem with implicit ambiguity between my method and conforms in predef
- sbt plugin - user defined configuration for command via their build.sbt
- unnecessary recompilations by sbt
- how to get months,years difference between two dates in sparksql
- scala: union of two maps whose key type is the same and whose value type is a collection of elements, but whose types are different
- how to run scala code in spark container using docker?
- not serialazable exception while running linear regression scala 2.12
- when doing implicit resolution with type parameters, why does val placement matter?
- how to escape column names with hyphen in spark sql
- does c# have an equivalent to scala's structural typing?
- inconsistent behaviour for xs.sliding(n) if n is less than size?
- if case class inheritance is prohibited, how to represent this?
- chaining partialfunctions with andthen in scala
- scala - can i overload curried methods?
- getting public fields (and their respective values) of an instance in scala/java
- scala swing image
- why is there no string interpolation in scala?
- scala as scripting language
- function literal with multiple implicit arguments
- using scala type aliases from java code
- scala regex multiple block capturing
- scala string interpolation with escaped quote fails
- unsupported literal type class scala.runtime.boxedunit
- play slick: how to inject dbconfigprovider in tests
- scala: function0 vs by-name parameters
- load spark data locally incomplete hdfs uri
- proper way to make a spark fat jar using sbt
- checkpointing in als spark scala
- how to create a schema file in spark
- play framework 2.2.1 - compilation error: “method render in class index cannot be applied to given types;”
- how to enforce strict serialization of json in play 2.x
- cross-compiling aggregate projects with different crossscalaversions for subprojects
- how to pattern match in scala 2.13?
- nullpointerexception in spark rdd map when submitted as a spark job
- enumeration and mapping with scala 2.10
- scala: package import conflicts
- spark not working with pureconfig
- how to guarantee sequentiality for forks in akka
- using scala classes as udf with pyspark
- post method rendering 403 forbidden page instead of executing post method code
- is there a way to perform a xpath string query using scala's xml library?
- play + anorm + postgres - load json value into a case class
- how does ‘1 * bigint(1)’ work and how can i do the same?
- sbt before/after hooks for a task
- can we use google guice di with a scala object instead of a scala class in play 2.4 with scala
- why can i not flatmap a list[option] using underscore?
- what is return type of `if` statement
- what's the rationale behind curried functions in scala?
- how to update a nested json using scala play framework?
- possible to make scala require a non-nothing generic method parameter and return to type-safety
- joda datetime: parse date with “cest” in string
- parametric type + function requires a string as second parameter?
- scala exactly matching a word in a given string
- how risky is it to call await.result on db calls
- could not find implicit value inside companion object in scala worksheet
- how to let spark parse a json-escaped string field as a json object to infer the proper structure in dataframes?
- is there a native grouping function that works like the sortwith function?
- filter and report multiple predicates
- gatling.io share data between virtual users
- reference scala file from build.sbt
- udf no typetag available for type string
- how to filter duplicate records having multiple key in spark dataframe?
- non-integer ids in spark mllib als
- generic programming in scala
- scala spark dataframe explode is slow - so, alternate method - create columns and rows from arrays in a column
- why does implement abstract method using val and call from superclass in val expression return nullpointerexception
- what does the `*` mean in a generic type?
- play framework 2.4 use injected variable in scala template
- nullpointerexception on implicit resolution
- how to transform dataframe before joining operation?
- how to convert json to scala shapeless.hlist?
- macro annotation to override tostring of scala function
- how to incorporate spark scala map field to bq?
- interpreting a benchmark in c, clojure, python, ruby, scala and others [closed]
- markdown to html with java/scala
- how to read from standard input line by line?
- reader monad for dependency injection: multiple dependencies, nested calls
- what design decisions would favour scala's actors instead of jms?
- scala application structure
- function syntax puzzler in scalaz
- is there a dbunit-like framework that doesn't suck for java/scala?
- is scala idiomatic coding style just a cool trap for writing inefficient code?
- using scalaz stream for parsing task (replacing scalaz iteratees)
- how to write database-agnostic play application and perform first-time database initialization?
- is scala functional programming slower than traditional coding?
- example of the scala aggregate function
- what are the differences and similarities of scala and haskell type systems?
- how to investigate objects/types/etc. from scala repl?
- permgen problems with lift and jetty
- why do immutable objects enable functional programming?
- akka - how many instances of an actor should you create?
- what is the meaning of colon, underscore and star in lift's sitemap(entries:_*)?
- aggregating multiple columns with custom function in spark
- idiomatic construction to check whether a collection is ordered
- idiomatic way to convert an inputstream to a string in scala
- how to iterate scala map?
- scala equivalent of java.util.arraylist
- when we should use scala.util.dynamicvariable?
- scala partition/collect usage
- your experience with scala+wicket
- naming convention for scala constants?
- documenting scala 2.10 macros [closed]
- how to reduce the verbosity of spark's runtime output?
- is my understanding of below scala code correct?
- finding my way through scalaz
- dynamic programming in the functional paradigm
- if java people go to scala, c# go to f#, where do ruby people go for functional nirvana? [closed]
- futures - map vs flatmap
- why no i++ in scala?
- right design in akka. - message delivery
- how to check for null in a single statement in scala?
- hashcode in case classes in scala
- difference between == and === in scala, spark
- how to check whether a string fully matches a regex in scala?
- complete “scala logging” example
- array vs arrayseq comparison
- what to choose between require and assert in scala
- why can't a class extend traits with method of the same signature?
- when should one use a kleisli?
- how are coroutines implemented in jvm langs without jvm support?
- advantages of subtyping over typeclasses
- how do i implement a generic mathematical function in scala
- is using scala on android worth it? is there a lot of overhead? problems? [closed]
- should i override the default executioncontext?
- how do i find the correct maven archetype project for developing with scala in eclipse?
- scala maps -> operator
- is there a way to take the first 1000 rows of a spark dataframe?
- how to declare empty list and then add string in scala?
- how to use scala trait with `self` reference?
- aggregate function count usage with groupby in spark
- how to declare traits as taking implicit “constructor parameters”?
- what does `t {}` do in scala
- what's the new way to iterate over a java map in scala 2.8.0?
- how does a “case” anonymous function really work in scala?
- how do you remove the _<scala-version> postfix from artifacts built+published with simple-build-tool?
- can spray.io routes be split into multiple “controllers”?
- passing scala.math.integral as implicit parameter
- beginner's guide to sbt 0.10 and idea
- how to use / refer to the negation of a boolean function in scala?
- how to set main class in sbt 0.13 project
- catching multiple exceptions at once in scala
- how does one log akka http client requests
- what's the difference between raw string interpolation and triple quotes in scala
- reading files from a directory in scala
- construct xml with dynamic label and attributes in scala?
- how to declare a byte array in scala?
- what are the default akka dispatcher configuration values?
- what are the limitations on inference of higher-kinded types in scala?
- spark: convert column of string to an array
- what is the difference between = and := in scala?
- how to find if a scala string is parseable as a double or not?
- how to reload a class or package in scala repl?
- scala: multiple objects and classes in a single file or each object/class its own file
- mixing multiple traits in scala
- multiple assignment of non-tuples in scala
- mixing object-oriented and functional programming
- playframework owasp top 10
- how to implement a rest web service using akka?
- substitute values in a string with placeholders in scala
- how to specify schema for csv file without using scala case class?
- doobie and db access composition within 1 transaction
- running a maven scala project
- custom exception in scala
- writing to hbase via spark: task not serializable
- how to check for null or false in scala concisely?
- cake pattern with java8 possible?
- how to disable scaladoc generation in dist task in play 2.2.x (using project/build.scala)?
- for my next project, a web-app, should use scala+wicket or scala+lift?
- how do the new scala typetags improve the (deprecated) manifests?
- in sbt, how do you add a plugin that's in the local filesystem?
- extracting `seq[(string,string,string)]` from spark dataframe
- is cons a method or a class?
- how to read json with schema in spark dataframes/spark sql
- in scala, difference between final val and val
- comparing collection contents with scalatest
- how can a private class method be tested in scala?
- scalatest: assert exceptions in failed futures (non-blocking)
- why future.sequence executes my futures in parallel rather than in series?
- how to define maven test-jar dependency in sbt
- how do i get sbt to gather all the jar files my code depends on into one place?
- functional languages (erlang, f#, haskell, scala) [closed]
- what is the concept of “weak conformance” in scala?
- scala/play: parse json into map instead of jsobject
- kafka - delayed queue implementation using high level consumer
- foldleft v. foldright - does it matter?
- is it possible to “curry” higher-kinded types in scala?
- scala: filtering based on type
- running multiple tests within the same fakeapplication() in play 2.0 scala
- spark multiclass classification example
- canonical way for empty array in scala?
- how to check to see if a string is a decimal number in scala
- scala: how to pass an expanded list as varargs into a method?
- filtering a scala list by type
- optimal way to create a ml pipeline in apache spark for dataset with high number of columns
- scala console won't work, intellij
- how can i override a typesafe config list value on the command line?
- spark 2.0 missing spark implicits
- scala for loop over two lists simultaneously
- filter map by key set
- scala - mutable thread safe collections
- how to calculate sum and count in a single groupby?
- where is scala_home on ubuntu?
- how to convert map[a,future[b]] to future[map[a,b]]?
- scala idiom for ordering by multiple criteria
- in scala, how do i get the *name* of an `object` (not an instance of a class)?
- does scala have introspection capable of something similar to python's dir()?
- alternatives to using “var” for state with actors?
- slick left/right/outer joins with option
- custom jodatime serializer using play framework's json library?
- in scala, can generic type parameters be used with *function* definitions?
- scala: producing the intermediate results of a fold
- settings.maxprintstring for scala 2.9 repl
- getting started on scala + javafx desktop application development
- what is proper monad or sequence comprehension to both map and carry state across?
- how to wait for akka actor system to terminate?
- scala ide 4.0.0 thinks there's errors in an out-of-the-box play framework 2.3.7 program
- how do i integrate scalatest with spring
- slick: create query conjunctions/disjunctions dynamically
- how to implement map with default operation in scala
- are multiple self-types possible?
- how the get the classof for a scala object type
- how to get a list with the typesafe config library
- static inner classes in scala
- scala, importing class
- how to combine filter and map in scala?
- scala ~> (tilde greater than) operator
- akka httpresponse read body as string scala
- scala parser combinators vs antlr/java generated parser?
- working with yaml for scala
- include jar file in scala interpreter
- found unit: required int. why is the error not obvious?
- try with exception logging
- is there a systematic way to discover which implicit defs are in scope, and which one is bound at a particular point?
- why does sbt build fail with “missingrequirementerror: object scala.runtime in compiler mirror not found.”?
- setting current working directory when executing a shell process
- packaging and deploying scala applications
- play 2 - scala fakerequest withjsonbody
- scala http operations
- create dataframe with null value for few column
- spark sql window function lag
- scala regexps: how to return matches as array or list
- anonymous scala function syntax
- create spark dataframe from sql query
- scala listener/observer
- play json formatter for map[int,_]
- how to partition rdd by key in spark?
- how can i see in what [java/scala?] code does scala compiler rewrites original scala-code
- spark merge/combine arrays in groupby/aggregate
- how to hide a parameter in swagger?
- are dummyimplicits used, and if so, how?
- how to use spring autowired (or manually wired) in scala object?
- how to share sbt plugin configuration between multiple projects?
- spray-json deserializing nested object
- spark: explode a dataframe array of structs and append id
- what's the point of using monads in an interpreter?
- spark sql: how to append new row to dataframe table (from another table)
- how to call the correct method in scala/java based the types of two objects without using a switch statement?
- simple string template replacement in scala and clojure
- setting http headers in play 2.0 (scala)?
- dropping multiple columns from spark dataframe by iterating through the columns from a scala list of column names
- scala ide - play 2 eclipse plug-in not highlighting syntax for scala html templates
- how to pass configuration file to scala jar file
- count all occurrences of a char within a string
- no 'scala-library*.jar' in every new intellij scala project
- what is the === (triple-equals) operator in scala koans?
- scala replacement for arrays.binarysearch?
- getting “cat: /release: no such file or directory” when running scala
- how to prevent java.lang.outofmemoryerror: permgen space?
- how to make aggregations with slick
- where to find downloaded library of sbt?
- scala bomb? (like a zip bomb)
- equivalent of scala's foldleft in java 8
- how do i make a class generic for all numeric types?
- spark-submit classnotfound exception
- how to: debug scala code when outside of an ide
- serializing a scala object into a json string using lift-json
- can scala be used to write gwt applications?
- parenthesis balancing algorithm recursion [closed]
- how to convert this map/flatmap into a for comprehension in scala?
- slick 3.0.0: how to query one-to-many / many-to-many relations
- how can i enable remote debugging for sbt in windows?
- cannot find class manifest for element type t
- how to parse a csv that uses ^a (i.e. \001) as the delimiter with spark-csv?
- scala flatten list
- partially applying type parameters
- how to serialize object to ast using json4s?
- why is classmanifest needed with array but not list?
- trying to get scalatest working: “there are no tests to run” when doing “mvn test”
- play 2.1 json serialization for traits?
- how to integrate the scala squeryl orb with play 2.0 framework?
- fold list of tuples in scala with destructuring
- how could i know if a database table is exists in scalaquery
- akka persistence query event stream and cqrs
- can i write a plain text hdfs (or local) file from a spark program, not from an rdd?
- can you override the stream writers in scala @serializable objects?
- cannot resolve column (numeric column name) in spark dataframe
- how do i get the scalaz idea live templates working for the symbolic methods?
- what is the efficient way to update value inside spark's rdd?
- run 3000+ random forest models by group using spark mllib scala api
- function which generically takes a type and returns the same type
- how to use scala udf in pyspark?
- create a spark dataframe from a nested json file in scala
- converting mutable to immutable map
- println vs system.out.println in scala
- viewing scaladoc in eclipse
- scala convert list[int] to a java.util.list[java.lang.integer]
- how to open sbt tool window in intellij?
- is string concatenation in scala as costly as it is in java?
- why implicitconversions is required for implicit defs but not classes?
- scala groupby preserving insertion order?
- play framework: how to serialize/deserialize an enumeration to/from json
- why use @singleton over scala's object in play framework?
- how to use synchronized in scala?
- why do you need arbitraries in scalacheck?
- how to create a play 2.2 scala application as an sbt sub-project
- integrating scala into an existing project in java
- how to get the client ip?
- clojure's 'let' equivalent in scala
- foldright on infinite lazy structure
- how do you return an iterator in scala?
- unimporting in scala
- any scala sdk or interface for aws?
- how to use constant value in udf of spark sql(dataframe)
- declare a variable without an initial value
- how can i share memory between two jvm instances?
- scala coding styles and conventions?
- scala: silently catch all exceptions
- apache spark dataframe groupby agg() for multiple columns
- read values from config in scala
- how to test a value on being anyval?
- how to flatten list inside rdd?
- use schema to convert avro messages with spark to dataframe
- how to set up postgresql for play 2.0?
- best practices with akka in scala and third-party java libraries
- dependent types not working for constructors?
- which is better framework java/gwt or scala/lift?
- spark: get top n by key
- count on spark dataframe is extremely slow
- apache spark handling skewed data
- xml to json with scala
- replace “ with \”
- remove entry from classpath after compile
- use scala macros to generate methods
- java interoperability woes with scala generics and boxing
- create or extend a companion object, using a macro annotation on the class
- simplest method for text lemmatization in scala and spark
- implicit classtag in pattern matching
- scala & spark: cast multiple columns at once
- spark : average of values instead of sum in reducebykey using scala
- akka: how to find the current nodes in a cluster?
- how to set non-namespaced nil and datatype attributes in jaxb
- fetch more than 20 rows and display full value of column in spark-shell
- scala: sliding(n,n) vs grouped(n)
- await a future, receive an either
- scala option[future[t]] to future[option[t]]
- recursively create directory
- how to attach sources to sbt managed dependencies in scala ide?
- how to get rid of : class type required but t found
- scala case class prohibits call-by-name parameters?
- collection type generated by for with yield
- pattern matching against scala map type
- inverse of partialfunction's lift method
- how to get logging working in scala unit tests with testng, slf4s, and logback
- difference between filter and where in scala spark sql
- in sbt, how do you override scalacoptions for console in all configurations?
- skip first n elements in scala iterable
- scala: constructor taking either seq or varargs
- why don't scala lists have an ordering?
- automatically convert scala code to java code [closed]
- how to flatten a sequence of cats' validatednel values
- scala match error
- state of xml support in scala 2.9.x
- scala - url with query string parser and builder dsl
- when is it okay to use “var” in scala?
- spark implicit $ for dataframe
- grabbing process stderr in scala
- how can i create a parser combinator in which line endings are significant?
- spark-submit: --packages vs --jars
- run scalatest tests in parallel
- how to generate sources in an sbt plugin?
- is there a fifo stream in scala?
- what is “call by name”?
- unresolved dependency: org.scala-sbt#sbt;0.13: not found when running sbt 0.13?
- how do i wait for a scala future's onsuccess callback to complete?
- scalaz list[statet].sequence - could not find implicit value for parameter n: scalaz.applicative
- scipy-like functionality in java / scala? [closed]
- mockito for objects in scala
- why do `left` and `right` have two type parameters?
- scala repl in gradle
- reliability issues with checkpointing/wal in spark streaming 1.6.0
- how do i add an xml attribute, or not, depending on an option?
- why doesn't scala fully infer type parameters when type parameters are nested?
- scala lazy values : performance penalty? threadsafe?
- create empty array-column of given schema in spark
- generic, type-safe way to flatten arbitrarily nested collections in scala?
- unit testing helper or non-interface traits in scala
- spark sql performing carthesian join instead of inner join
- basic scalaz state question
- structural type in method type parameterization in scala?
- how to use io with scalaz7 iteratees without overflowing the stack?
- scala 2.12.2 emits a ton of useless “warning: parameter value … in method … is never used” warnings. how to get rid of them?
- what's the relationship of the versions of scala when i use sbt to build a scala project?
- spark: sort records in groups?
- can sparkcontext and streamingcontext co-exist in the same program?
- writing a test case for file uploads in play 2.1 and scala
- how to specialize on a type projection in scala?
- how to iterate all the product types in a coproduct using shapeless?
- what's the relation of fold on option, either etc and fold on traversable?
- case classes, pattern matching and varargs
- simplest way to count words in a file
- scala - currying and default arguments
- spray.io: can't compile test spec
- guice and scala - injection on generics dependencies
- how to make a sbt task use a specific configuration scope?
- scala 2.10.2 calling a 'macro method' with generic type not work
- executing bash strings using scala.sys.process
- is there any non-blocking io open source implementation for scala's actors?
- handling microseconds in spark scala
- scala/lift check if date is correctly formatted
- alternative flows based on condition for akka stream
- how do i test an akka actor that sends a message to another actor?
- play ! 2.2.4 / akka : tests failed when run together, but ok separately
- string split behaviour on empty string and on single delimiter string
- transpose dataframe without aggregation in spark with scala
- implicit parameter resolution for higher kinded types
- error for coin change in scala?
- scala for-loop. getting index in consice way
- is is possible to improve type inference for partially applied types in scala?
- variance annotation, keeping track “positive” and “negative” positions by scala compiler
- scala-way to handle conditions in for-comprehensions?
- implicit resolution failure?
- faster permutation generator
- how to cast a variable to certain runtime type got from typecast in scala
- gradle scala plugin corollary to addcompilerplugin in sbt
- scala map.mapvalues error
- websocket proxy using play 2.6 and akka streams
- costly computation occuring in both isdefined and apply of a partialfunction
- how to extract values from json string?
- how to infer inner type of shapeless record value with unary type constructor?
- spark migrate sql window function to rdd for better performance
- play 2.4 console not working as documented
- inheritablethreadlocal value not inherited by executorservice threads
- how to parse line-based text file(.mht) in scala way?
- scala - implicit conversion of int to numeric[int]
- jackson scala json deserialization to case classes
- scala - generic unzip for hlist
- why doesn't scala's implicit class work when one of the type parameters should be nothing?
- how to sort dataframe with my comparator using scala?
- scala/slick plain sql: retrieve result as a map
- querystringbinder for list[string]
- sbt: is it wise to fix eviction warnings of library dependencies
- convert java.util.map[string, object] to scala.collection.immutable.map[string, any]
- easiest way to decide if list contains duplicates?
- getting value of either
- parallel execution of tests
- scala listbuffer (or equivalent) shuffle
- scala getclass.getresource() returning null
- spark rdd's - how do they work
- what are the good scala ides at the start of 2010?
- what is the difference between scala classes, scripts and worksheets in intellij-idea?
- new line character in scala
- how do i create a heterogeneous array in scala?
- how do you share classes between test configurations using sbt
- how do i print an expanded macro in scala?
- jgit and finding the head
- understanding why “pimp my library” was defined that way in scala
- iterate over fields in typesafe config
- calling a method on the superclass in a self-typed trait in scala
- spark dataset api - join
- is it possible to use in clause in plain sql slick?
- creating android apps without java
- scala pattern matching against urls
- sbt: how to access environment variable or configuration?
- nested scala singletons from java code
- executing shell commands from scala repl
- scalacheck case class random data generator
- constructor-local variables in scala
- creating infix operators in scala
- how to copy iterator in scala?
- spark - random number generation
- how do i embed the scala 2.8 interpreter in a java application?
- how can i add unmanaged jars in sbt-assembly to the final fat jar?
- is there a scala unit test tool that integrates well with maven?
- scala fast text file read and upload to memory
- how to format the sbt build files with scalariform automatically?
- scala: xml attribute parsing
- is there a way to include math formulae in scaladoc?
- should i prefer sealed class or enumeration in scala?
- error compiling java/scala mixed project and lombok
- how to sum a list of tuples
- dynamically create class in scala, should i use interpreter?
- why is the + operator for list deprecated in scala?
- how to embed javascript code directly in scala.js?
- how to save repl session?
- why foldright and reduceright are not tail recursive?
- is it possible to use continuations to make foldright tail recursive?
- function literal with call-by-name parameter
- intellij idea scala type info
- how to create spark dataset or dataframe from case classes that contains enums
- how to test that akka actor was created in scala
- scala how to use extends with an anonymous class
- exiting spark-shell from the scala script
- slick/scala: what is a rep[bind] and how do i turn it into a value?
- what does it mean to instantiate a trait?
- scala - getting a callback when an external process exits
- how can i get the actual object referred to by scala 2.10 reflection?
- scala - enforcing size of vector at compile time
- parsing very large xml lazily
- how to exclude jar in final sbt assembly plugin
- must override val variable in scala
- minmax normalization in scala
- toset and type inference
- computation with time limit
- how to implement lazy sequence (iterable) in scala?
- any better, more idiomatic way to convert sql resultset to a scala list or other collection type?
- scala arrays vs vectors
- scala.reflect.internal.fatalerror: package scala does not have a member int
- can i pass an arbitrary function to another function in scala?
- scala: enforcing a is not a subtype of b
- shading over third party classes
- get the companion object instance of a inner modul with the scala reflection api
- scalaz: how can i accumulate failures or apply a function to validations with different types?
- compatible encryption between c# and php, coldfusion, ruby, python
- shapeless map hlist depending on target types
- in these cases, the scala value class will be “boxed”, right?
- two type parameters with the same name
- implementing a measured value in scala
- spark dataframes- reducing by key
- what is the use of private constructor in scala?
- how to register byte[][] using kryo serialization for spark
- can't debug a scala application in intellij + sbt-idea-plugin
- scalaz validation with applicative functor |@| not working
- groupby in scala
- play 2 reverse routing, get route from controller method
- scala swing event framework - where do i add my reactors?
- spark - scala - save dataframe to a table with overwrite mode
- underscore for existential type in scala
- scala: spark sql to_date(unix_timestamp) returning null
- conditionally invoke member function without a temporary var
- can generate .thrift files from existing java/scala interfaces and data types?
- what is a kind projector
- error: module not found: org.scala-sbt#sbt;${{sbt.version}}
- transforming pyspark rdd with scala
- how create kafka zkstringserializer in java?
- how to convert scala rdd to map
- getting data out of a future in scala
- akka on android multiple reference.conf
- substituting xml values programmatically with scala
- define spark udf by reflection on a string
- spark scala dataframe convert a column of array of struct to a column of map
- what is the current state of tooling for scala?
- spark / scala: fill nan with last good observation
- cache and query a dataset in parallel using spark
- is it possible to recover the name of the function from within the function in scala?
- running jacocoreport
- resource directory for tests in a play application
- what special rules does the scala compiler have for the unit type within the type system
- how to create a custom 404 page handler with play 2.0?
- in scalatest is there any difference between `should`, `can`, `must`
- the difference between 'hashset' and 'set' in scala?
- spark dataframe column nullable property change
- make compile fail on non-exhaustive match in sbt
- migrating java treemap code to scala?
- why do i need jsr305 to use guava in scala?
- what is more scala idiomatic: trait traita extends traitb or trait traita { self: traitb => }
- combining two lists in scala
- is it possible for scala to have reified generics without changing the jvm?
- case insensitive pattern matching for strings
- how can i access the last result in scala repl?
- what does “reflective access of structural type member method should be enabled…” warning mean in scala?
- filter spark dataframe with row field that is an array of strings
- akka: send a future message to an actor
- scala type inference on overloaded method
- coalescing options in scala
- installing sbteclipse
- compare json equality in scala
- scala: why does a `for` comprehension on a map sometimes yield a list?
- scala map vs hashmap
- why cannot this.type be used for new instances
- writing files to local system with spark in cluster mode
- case class constructor argument type depending on the previous argument value
- what is the difference between a.ne(null) and a != null in scala?
- spray-json error: could not find implicit value for parameter um
- how do i set the default number of threads for scala 2.10 parallel collections?
- scala forall and exists output , does it make sense
- sbt to exclude source directory
- anorm dynamic filters
- accessing scala object fields from java
- how to convert a case-class-based rdd into a dataframe?
- modifying environment variable for a process with scala.sys.process?
- is there a “self” type in scala that represents the current type?
- module not found: com.eed3si9n#sbt-assembly;0.14.3
- maven-shade like plugin for sbt
- scala: illegal inheritance; self-type y does not conform to x's selftype self
- is there a way to filter a field not containing something in a spark dataframe using scala?
- scala reflection to access all public fields at runtime
- why doesn't scala's future have a .get / get(maxduration) method, forcing us to resort to await.result() instead?
- combining type and field serializers
- spark non-serializable exception when parsing json with json4s
- single documentation for mixed (scala/java) project?
- how to do “or” filter in slick
- using scala implicitly for type equality
- class alias in scala
- how to write nested queries in select clause
- implicit conversion over multiple levels, why does int to double automatically work?
- how do you add xml document info with scala.xml?
- how do i use the trait scala.proxy
- saving contents of df.show() as a string in spark-scala app
- analogous try block to try/finally block in scala
- efficient way to convert scala array to unique sorted list
- kill or timeout a future in scala 2.10
- find minimum for a timestamp through spark groupby dataframe
- lazily evaluated indexed sequence type
- package contains object and package with same name
- can this free-term-variable error (produced at macro expansion) be avoided?
- why apply() can not be used in shorthand form on package objects?
- sbt: pre-applying input to inputkeys
- how to get paginated select on slick + postgresql
- implementing inner traits in scala like we do with inner interfaces in java
- scala play 2, passing request to method
- how to define a scala method with type param that cannot be any
- exception on download: sun.security.validator.validatorexception: no trusted certificate found
- conditional methods of scala generic classes with restrictions for type parameters
- close akka-http websocket connection from server
- elegant json flatten in spark
- equality relations in scala
- confused by foldleft error (both in eclipse and repl)
- scala implicit type conversion and ==
- using scala 2.10 reflection how can i list the values of enumeration?
- how to get histogram of all columns in a large csv / rdd[array[double]] using apache spark scala?
- how would i express a chained assignment in scala?
- ambiguous imports in scala
- why does `.asinstanceof` sometimes throw, and sometimes not?
- is it possible to use in clause in plain sql slick for integers?
- why spark doesn't allow map-side combining with array keys?
- error: not found: value lit/when - spark scala
- how to split multi-value column into separate rows using typed dataset?
- merge two spark sql columns of type array[string] into a new array[string] column
- intellij: command line is too long. shorten command line for… in sbt project
- scala: how to inherit a “static slot”?
- is it safe to send sigterm to jvm
- using shapeless scala to merge the fields of two different case classes
- overriding subclass methods with subclassed arguments?
- scala call by name confusion
- how would be a functional approach to shifting certain array elements?
- difference between isinstance and isinstanceof
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- write to multiple outputs by key scalding hadoop, one mapreduce job
- mixing javascript and scala in a play template
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- does a class with a self type of another class make sense?
- using different monads in for-comprehension
- how to code this validation logic in scala?
- passing functions for all applicable types around
- constraining an operation by matching a type parameter to an argument's path-dependent type
- making reads and writes in scala play for lists of custom classes
- play 2.0 framework, using a bodyparser with an authenticated request
- what's a shebang line for scala that doesn't corrupt mimetype?
- strategy pattern in akka
- how to list all fields with a custom annotation using scala's reflection at runtime?
- how to use play-plugins-mailer with play 2.3 and scala 2.11?
- listeners and reactions in scala swing
- how can i get xstream to output scala lists nicely? can i write a custom converter?
- failed to created jlinereader (scala repl)
- when to use scala triple caret (^^^) vs double caret (^^) and the into method (>>)
- how to toggle between project and library dependencies in sbt?
- behavior of scala fold in parallel collections
- missing par method from scala collections
- scala generic encoder for spark case class
- when should i make methods with implicit argument in scala?
- akka streams: reading multiple files
- typeclasses and inheritance in scalaz
- play 2.x @ sign in route definitions
- unable to override java.lang.string field. what is wrong?
- cake pattern: one component per implementation, or one component per trait?
- batch insert with table that has many columns using anorm
- with scala closures, when do captured variables start to live on the jvm heap?
- scala switch which continue matching next cases after successful match
- why exactly does akka need immutable messages
- evidence that types are not equal in scala
- stream-static join: how to refresh (unpersist/persist) static dataframe periodically
- how can i make an sbt key see settings for the current configuration?
- evaluate string command in scala from repl
- tuples duplicate elimination from a list
- simulated binary crossover (sbx) crossover operator in scala genetic algorithm (ga) library
- import implicit conversions without instance of sparksession
- compilation error in scala
- calculation in play 2.0 framework template engine
- spark scala dataframe: merging multiple columns into single column
- delete from cassandra table in spark
- rdd transformations and actions can only be invoked by the driver
- scala string* type (in function args)
- when are dependent types needed in shapeless?
- compile time check on some property
- play json read and default parameters for case class?
- send module version as command line argument to sbt
- bypass first line of each file in spark (scala)
- play! 2.0 framework multi module project
- how to make an sbt task run on under multiple scopes
- in scala, how can a constructor refer to the object it is creating?
- parser combinator: how to terminate repetition on keyword
- why does scala compiler fail with “object sparkconf in package spark cannot be accessed in package org.apache.spark”?
- idiomatically defining dynamic tasks in sbt 0.13?
- factorize spark column
- rewrite logicalplan to push down udf from aggregate
- validations in value classes
- how to drop duplicates using conditions
- spark udaf - using generics as input type?
- how to integrate sbt scala in eclipse
- how to split up an iterator?
- scala compiler not recognizing a view bound
- adding a count column to my sequence in scala
- convert multiple columns into a column of map on spark dataframe using scala
- how to mask columns using spark 2?
- why can't i pattern match on stream.empty in scala?
- replace bigrams based on their frequency in scala and spark
- scala trait - is there an equivalent of java interface public static field?
- how can i (best) convert an option into a try?
- is it possible to restrict int by creating something like positiveint and have compile-time checks in scala?
- combining arrays in scala
- why won't scala optimize tail call with try/catch?
- which function in spark is used to combine two rdds by keys
- s3 slowdown error in spark on emr
- does groupbykey in spark preserve the original order?
- sbt apply task after compile
- scala: keyword as package name
- what's a “diverging implicit expansion” scalac message mean?
- avoiding implicit def ambiguity in scala
- time complexity of javaconverters asscala method
- is using try[unit] the proper way?
- spark : check your cluster ui to ensure that workers are registered
- what's the difference between currying and multiple parameter lists?
- how to make sbt not reporting compilation warnings for generated code?
- scala buffer: size or length?
- what is the purpose of the scala.tools.nsc package?
- play!: does slick's ddl replace evolutions?
- iterating circular way
- why does idea 14 report “cannot load facet ”scala“: unknown type of facet ”scala“”?
- error while exploding a struct column in spark
- unable to test controller using action.async
- scala: define default parameters in a function (val) vs using a method (def)
- unexpected difference in behavior seemingly due to using private[this] instead of private
- listing files from resource directory in sbt 1.2.8
- how to order my tuple of spark results descending order using value
- how to shade before compile with sbt?
- list foldright always using foldleft?
- scala constant expressions and computed string literals
- how to fork the jvm for each test in sbt
- scala class extends {}
- why is a defined object called 'module' by the scala interpreter?
- scala performance: imperative vs functional style
- scala play 2.2 application crashes after deploying in heroku: target/start no such file or directory
- how to specify that to build project a another project b has to be built first?
- why is a scala companion object compiled into two classes(both java and .net compilers)?
- is there a division operation that produces both quotient and reminder?
- how to declare task dependency on tasks in 0.13?
- listing combinations with repetitions in scala
- convert value depending on a type in sparksql via case matching of type
- scala dot syntax (or lack thereof)
- scala foldleft while some conditions are true
- element-wise sum of arrays in scala
- apache spark — mllib — collaborative filtering
- what is the fastest way to compile scala files using maven?
- value reducebykey is not a member of org.apache.spark.rdd.rdd
- how to mock a call-by-name argument (like getorelse) using scalamock?
- difference between actorref.tell and inbox.send in akka
- use scala on computer without internet connection
- fast functional merge sort
- handling exceptions in an iteratee library without an error state
- spark decimal type precision loss
- why scala changed relative precedence of relational vs equality operators (compared to java)?
- scala companion class warning
- intellij show errors in scala source files but the project compiles successfully
- why does @requestmapping annotation accept string parameter in java but not in scala?
- experiences with escape analysis enabled on the jvm
- how do i rename a file in scala?
- either, options and for comprehensions
- why does this scala line return a unit?
- how to let the user switch language in playframework 2
- how to call a template which accepts variable number of args in play framework 2
- overriding unapply method
- how to open tcp connection with tls in scala using akka
- type parameters and numeric widening
- are recursive structural types not supported in scala anymore?
- initializing an actor before being able to handle some other messages
- access java base class's static member in scala
- how to get first line from file in scala
- how to set parquet file encoding in spark
- scala connection pool library?
- mixing java code in scala program?
- how to add a column to the beginning of the schema?
- conditional scalacoptions with sbt
- extract json values as map with lift-json
- sqlcontext implicits
- two problems with sbt in cygwin / vista
- best method to peek into a scala actor's mailbox
- matching with custom combinations/operators
- vectorassembler does not support the stringtype type scala spark convert
- scala map on iterator does not produce side effects
- how to convert rdd to dataframe in spark streaming, not just spark
- scala class cant override compare method from java interface which extends java.util.comparator
- idiomatic way to use spark dstream as source for an akka stream
- implicit conversion between scala.long and java.lang.long in collections
- scala object module$
- sbt-assembly: how do i include the static files in src/main/webapp
- sparkcontext not serializable inside a companion object
- scala: adding a method to list?
- error: not found: value sc
- subtype polymorphism in shapeless mapping
- main method is not called in scala script
- calling generic function with functor using subclass (cats/scalaz)
- question about scala variable mutability
- scala case class copy with optional values
- nosuchmethoderror when declaring a variable
- how to make a code thread safe in scala?
- how can collections use implicit conversions on element types?
- scala this aliasing and self type
- scala placeholder syntax
- how should i remove the first occurrence of an object from a list in scala?
- sbt specify java heap size in build.scala
- circular type parameters definition in scala
- scala reflection error: this is an inner module, use reflectmodule on an instancemirror to obtain its modulemirror
- lowercased variables in pattern matching
- how to start sbt console and automatically evaluate some expressions?
- accessing scala instance variables from java in eclipse
- merge two case class of same type, except some fields
- iterating an rdd and updating a mutable collection returns an empty collection
- filter spark/scala dataframe if column is present in set
- how to send a file as a response using akka http?
- build.scala is not created in play
- how to use array_contains with 2 columns in spark scala?
- create collection of cartesian product of two (and more) lists with java lambda
- how to merge two maps into one with keys from the first map and merged values?
- pattern match on a generic type
- how to not watch a file for changes in play framework
- can you access a sbt settingkey inside a command?
- scala collections : map a list and carry some state?
- why list partition works while span does not
- macros: path dependent type inference confusion
- scala - unescape unicode string without apache
- spark fail in windows: <console>:16: error: not found: value sqlcontext
- aux-pattern usage compiles without inferring an appropriate type
- get list of elements that are divisible by 3 or 5 from 1 - 1000
- spark is pushing down a filter even when the column is not in the dataframe
- schema for type any is not supported
- scala - type mismatch; found int, required string
- scala: overridden value parent code is run but value is not assigned at parent
- why the type position of a method is marked as negative?
- how to define directory structure following packages in project's scala build definitions?
- replace scalaz listt with semantically equivalent cats functionality
- confusion with existential types in scala
- how to define a function that takes a function literal (with an implicit parameter) as an argument?
- scala type inference and multiple arguments list
- unapply method of a case class is not used by the scala compiler to do pattern matching, why is that?
- exception in thread “main” java.lang.nosuchmethoderror: scala.predef$.refarrayops([ljava/lang/object;)lscala/collection/mutable/arrayops
- when to use self references or composition?
- map of with object references as keys?
- extend scala set with concrete type
- how does aggregate work in scala?
- intellij's scala console not working
- akka consolidate concurrent database requests
- having trouble with scala's “repsep” as seen in parser combinators
- why does a method with type parameter bound >: allow subtypes?
- making the features of test data same as train data after featureselection in spark
- ensime doesn't work with sbt + android-plugin
- subtract two columns with null in spark dataframe
- scalaz functor typeclass special symbols
- file download problem in my scala code
- can function type be defined by inference?
- why annotations written in scala are not accessible at runtime?
- list.sum on custom class
- using a scala symbol literal results in nosuchmethod
- scalaz pipe operator connected with a list method
- why can't a variable be assigned placeholder in function literal?
- apply method with curly braces
- pick up different source file for different scala version
- scala implicits resolution mechanism is declaration order dependent?
- finding objects using scala's runtime reflection
- read external json file into rdd and extract specific values in scala
- how did anonymous function implements the trait?
- simple way to apply a list of functions to a value
- scala: correcting type inference of representation type over if statement
- scala: generic method using implicit evidence doesn't compile
- scala member field visibility in spark jobs
- typeclass constraint in typeclass generic
- operator associativity using scala parsers
- how rename s3 files not hdfs in spark scala
- akka control threadpool threads
- how to get year and week number aligned for a date
- how to integrate spark with scala project in intellij ide?
- reading schema of streaming dataframe in spark structured streaming
- calling map on a parallel collection via a reference to an ancestor type
- how to split a list by another list in scala
- the difference between countdistinct and distinct.count
- spark split a column value into multiple rows
- batch http requests in play!framework
- read csv with last column as array of values (and the values are inside parenthesis and separated by comma) in spark
- scala - initializing mutable maps and exposing them as immutable
- why use collection.empty[t] instead of new collection[t]()
- binding.scala: strategy to avoid too many dom-tree updates
- spark - how to combine/merge elements in dataframe which are in seq[row] to generate a row
- scala: how to define a value class
- moving average in spark java
- case class private constructor - need for readresolve implementation
- how to implement a delayed future without java.util.timer?
- why do we need to specify a refined type (or its equivalent aux) for the output of certain type computations?
- underscores and string concatenation in list.map with scala
- akka - error during object serialization
- mapping timeseries data to previous datapoints and averages
- how to pass a variable being an array in javascript to a controller accepting list[string] as a parameter?
- scala regex pattern match of ip address
- unresolved dependencies for a new play 2.0 scala project
- implicit conversion between java and scala collections using javaconversions
- spark scala - splitting string syntax issue
- spark columnar performance
- in apache spark, can i easily repeat/nest a sparkcontext.parallelize?
- instantiating a case class with default args via reflection
- spray's `detach` directive
- overloading methods based on generics
- convert dataframe to rdd[map] in scala
- executing multiple sql queries on spark
- how to efficiently map over df and use combination of outputs?
- renaming nested elements in scala spark dataframe
- scala - how to combine eithert with either in for comprehension
- how to convert a simple dataframe to a dataset spark scala with case class?
- tuning message frequency based on cluster load
- problems with adding a new column to a dataframe - spark/scala
- adding part of the parent schema column to child in nested json in spark data frame
- what is the difference between inset and insetbind in slick
- why does scalatest mix up the output?
- what scala feature allows the plus operator to be used on any?
- why is there no tuple1 literal for single element tuples in scala?
- why doesn't passing nil to foldleft work?
- how can i idiomatically “remove” a single element from a list in scala and close the gap?
- what is happening with 0.asinstanceof[b] in scala reduceleft implementation
- does sbt use the fast scala compiler (fsc)?
- why does scala evaluate the argument for a call-by-name parameter if the method is infix and right-associative?
- what is the performance of groovy 2.0 with static compilation
- invoke a method using a tuple as the parameter list
- what does it mean assign “_” to a field in scala?
- how to check existence of a program in the path
- scalatest on sbt not running any tests
- how to access a resource file using relative path in play framework project?
- why can't scala find org.apache.commons.lang package?
- simple scala getter/setter override
- play 2.4 - slick 3.0.0 - delete not working
- db plugin is not registered in play 2.0
- scala projections in slick for only one column
- error in running job on spark 1.4.0 with jackson module with scalaobjectmapper
- notserializableexception with json4s on spark
- gatling: understanding rampuserspersec(mintps) to maxtps during seconds
- how to use scalatest “contain allof” on two lists?
- in scala, how come `println(1,2)` works?
- in scala, is there a way to access a symbol (variable) defined in an outer scope?
- stacking statet in scalaz
- why are concrete function implementations in traits compiled to bridge methods in scala 2.9.x but not in 2.8.x?
- break or shortcircuit a fold in scala
- difference in type erasure of list[int] and list[integer]
- detect inner objects in a scala object
- how to use datetime in slick2.0?
- what is the syntax meaning of “`class declaration head` { val_name : type => `class body` }”
- scala closures compared to java innerclasses -> final vs var
- using scala 2.10.1 value types in java
- is it possible to make non-capturing groups work in scala regexes when pattern matching
- pattern match “return” value
- scala on android: java.lang.nosuchmethoderror: java.lang.string.isempty
- how does scala use explicit types when resolving implicits?
- get the size of a resource
- how to define a cyclic type definition?
- shapeless: trying to restrict hlist elements by their type
- scala type inference with _ place holder
- how do i increment an integer variable i passed into a function in scala?
- why is the manifest not available in the constructor?
- how to get the sub project path in sbt multi project build
- how to implement java interface in scala with multiple variable parameter methods (type eraser issue)?
- scalatra / slick and insert if not exists
- scala method types and methods as parameters
- self-join not working as expected with the dataframe api
- setting an environment variable from within the sbt shell
- what does the “extends {..}” clause in scala object definition, without superclass name, do?
- strange type mismatch when using member access instead of extractor
- how to define case classes with members with unbound type parameters?
- library to integrate facebook login with play framework? [closed]
- add values to session during testing (fakerequest, fakeapplication)
- importing .jar files into scala environment
- compose “insert…select…where” query
- i have a scala list, how can i get a traversableonce?
- how to save spark rdd to local filesystem
- why scala does not have a decltype?
- how to create a singleton object in scala with runtime params
- how to use custom executor in akka dispatcher
- foreach and enumeration
- deleting indexed nodes in neo4j
- what is a scalasignature?
- multiple assignment via pattern matching with array is not working with uppercase vals
- sbt scala cross versions, with aggregation and dependencies
- scala types: class a is not equal to the t where t is: type t = a
- scala project using sbt throws nullpointerexception
- intellij idea plugin development in other jvm languages
- is it possible to generate apply from weaktypetag inside a scala macro?
- how to return an empty nodeseq using scala xml?
- is scala import recursive?
- how to automatically increment version number from my sbt and uploaded to git
- cannot get utest to see my tests
- scala: unable to set environment variable
- implicit parameter for literal function
- unexpected results in spark mapreduce
- why does spark cassandra connector fail with nohostavailableexception?
- why does scala complain about illegal inheritance when there are raw types in the class hierarchy?
- program not terminating when using futures
- difference between size and sizeis
- exception while accessing kafkaoffset from rdd
- play ws api: throttling request rates
- remoteactorrefprovider classnotfound
- how can i have a negation type in scala?
- scala futures: default error handler for every new created, or mapped exception
- scala dsl - nested block referencing parent
- setting javac options for sbt dependencies
- scala 3 - extract tuple of wrappers and inversemap on first order type
- fpgrowth computing association in pyspark vs scala
- why type inference failed in scala when using implicit conversion on return value of option.getorelse?
- docker.io - docker linking between application & database containers
- human readable size units (file sizes) for scala code (like duration)
- how to get classification probabilities from multilayerperceptronclassifier?
- why inconsistent results using subtraction in reduce?
- scala cake-pattern compile error with precog config pattern
- implementation of scala set.contains
- how to split dataset to two datasets with unique and duplicate rows each?
- scala, maven, and preprocessors
- using javascript in play template
- scala can not resolve inherited java interface constant members
- how do i attach scala sources to my maven jar?
- using scala.js to compile only (and not override run) in sbt
- how to add map column in spark based on other column?
- spark closure argument binding
- is it reasonable to use scala's repl for comparative performance benchmarks?
- specifying type of a case object in either
- spark: read csv file from s3 using scala
- error:scalac: bad symbolic reference. a signature in sqlcontext.class refers to type logging in package org.apache.spark which is not available
- how to configure sbt to pick the desired scala version (2.9)
- implicit conversion from a to some(a)
- java sound: devices found when run in intellij, but not in sbt
- merge two rdds in spark scala
- use of abstract type in a concrete class?
- scala isinstanceof and type erasure
- splitting row in multiple row in spark-shell
- why does sbt report “no java installations was detected” with $java_home set?
- play 2.2.1 java: whats the equivalent of @before filters from play 1.x?
- apache spark - java.lang.nosuchmethoderror: breeze.linalg.densevector
- intellij scala worksheet run type difference explain
- how to get a set of all elements that occur multiple times in a list in scala?
- why sbt.extracted remove the previously defined taskkey while append method?
- accessing shark tables (hive) from scala (shark-shell)
- specs2 - tagging tests to run
- how do scala futures operate on threads? and how can they be used to execute async & non-blocking code?
- do i need a trailing semicolon to disambiguate this code?
- creating a breeze densematrix using an existing list of lists in scala
- scala try[unit] confusion
- temporarily disable tab completion in scala repl
- overloaded method value apply with alternatives:
- how to validate date format in a dataframe column in spark scala
- how to use dataframe.explode with a custom udf to split a string into substrings?
- diffrence between extends from app and object contain main method in scala
- scala get function name that was sent as param
- extending scala collections
- combining list, future and option in for-comprehension - scalaz
- scala: retrieve class-name from classtag
- how to remove sub list
- functionally processing a database cursor in scala
- how do i get the current script or class name in scala?
- bundling multiple artifact for deployment?
- trying to understand how classes declared on the repl are treated internally
- top n items in a list ( including duplicates )
- spark streaming update_state_by_keys for arrays aggregation
- java.io.eofexception on spark ec2 cluster when submitting job programatically
- spark dataframe - drop null values from column
- how to change scala version for build definition?
- how do i add the scala platform in netbeans?
- compile file containing java and scala code
- gatling exec outside scenario scope - post requests are not called
- what to use instead of symbols in scalatest?
- in scala how to group consecutive elements in array
- how to pass array[seq[string]] to apache spark udf? (error: not applicable)
- “static” field in scala companion object
- when to use “sbt assembly” and “sbt compile && sbt package”?
- the actor dsl example from akka doc
- how to dynamically generate json in gatling?
- akka routing: reply's send to router ends up as dead letters
- assertions in abstract superclass scala creating npe
- serializing multipart form requests for testing on play 2.1
- how can i group the a list into tuple grouped items in scala?
- rdd split and do aggregation on new rdds
- type inference failing on a `function2` argument using underscores
- how to invoke a method again and again until it returns a `future` value containing `none`
- can we assign / change traits to the scala class during runtime? how - any sample code? like strategy pattern (of gang of four design pattern)
- spark issues in creating hfiles- added a key not lexically larger than previous cell
- how to execute some init after element loaded to dom with binding.scala
- different behavior when declaration type is different(set vs treeset)
- how to convert custom datetime format to timestamp?
- logging from an sbt plugin
- what is the simplest way to mix java+scala in an android project using gradle?
- spark dataframe partitioner is none
- is there an easy way to get a stream as output of a rowparser?
- scale matrix in scala/spark
- how to transform scala nested map operation to scala spark operation?
- specifying scalac compile-time option with maven-scala-plugin
- scala future app terminates before complete
- how to transform the dataframe into label feature vector?
- how to unit test broadcastprocessfunction in flink when processelement depends on broadcasted data
- how to use file from databricks filestore
- play framework - illegal start of simple expression
- how to use shapeless to convert generic map[string, any] to case class inside generic function?
- how do i get type parameter from type with type parameter, inside scala macro?
- in scala how can i advise my own methods?
- problems with compiling play application
- scala 2.11.5 compiler crash with type aliases and manifests
- reading kafka connect jsonconverter messages with schema using spark structured streaming
- unsupportedoperationexception error converting string to datetime using joda time
- creating custom dom events with scalajs
- spark streaming streamingcontext.start() - error starting receiver 0
- verify there is a combination of unique string
- scala - replace xml element with specific text
- scala class fields not visible
- create a map to call the pojo for each row of spark dataframe
- dynamically join two spark-scala dataframes on multiple columns without hardcoding join conditions
- typetags not working inside of code block scope?
- working with sets as functions
- scala method clone in class object cannot be accessed in t access to protected method clone not permitted because
- conditionally merge list elements
- library 'scala-2.10.0-rc1 not used' thrown by intellij integrating a play 2 app
- type inference with type aliases and multiple parameter list function
- counting isomorphic cyclic shifts in a string
- getting null pointer exception when running saveasnewapihadoopdataset in scala spark2 to hbase
- scala: matching special characters
- follow-up to “simple string template replacement in scala and clojure”
- scala macro: define top level object
- spark, scala & jdbc - how to limit number of records
- how to use java package com.example…object in scala
- why is jetty serving css with text/html content type
- problems to create dataframe from rows containing option[t]
- play! failing to convert java list to scala list
- return seq[row] from spark-scala udf
- how can i modify each element of a list while iterating over it in scala?
- running in “deadlock” while doing streaming aggregations from kafka
- which among importing companion object or extending trait is better
- calling scala method from java - set<object> or set<long>?
- shapeless: own hlist constraint using coproduct
- play validation - custom form field validation with specific field error
- how to create an instances for typeclass with dependent type using shapeless
- direct inheritance of trait fails, but proxy works
- functional/stream programming for the graph problem “reconstruct itinerary”
- can we have an array of by-name-parameter functions?
- scala multi-module project?
- convert dataframe back to rdd of case class in spark
- implicit def with varargs
- how to deserialize a json string that contains @@ with scala'
- creating sbt project in intellij ultimate 13.1.1 with scala plugin gives no new > scala object for src/main/scala?
- convert java.lang.boolean to scala boolean
- how to create dataframe from fixed-length text file given field lengths?
- how to convert a string from a text input into a function in a scala
- extract numbers from string array
- why does this type constraint fail for list[seq[anyval or string]]
- string similarity with or condition in minhash spark ml
- how to cut a long scalatest spec to pieces
- how to clear terminal/screen in scala
- scala lazy val question
- what is apply method in scala, especially used in type definition
- avro error on aws emr
- apply filter condition on dataframe created from json
- how to use dataframe window expressions and withcolumn and not to change partition?
- serializing a priority queue in scala
- getting all key value pairs having the maximum value from a scala map
- converting dataset to json array spark using scala
- remove first character of a spark string column
- why does executing activator give exceptionininitializererror caused by: java.security.nosuchalgorithmexception: sha1 messagedigest not available?
- spark illegalargumentexception: column features must be of type struct<type:tinyint,size:int,indices:array<int>,values:array<double>>
- why is the use of return a bad habit in scala
- how to compile/package spark 2.0 project with external jars and maven
- iterators over same collection in for-loop
- setting abstract type based on typeclass
- scala: fill the gaps in a list with last non-empty value
- play framework overriding `application.conf` values based on environment
- batch lookup data for spark streaming
- unable to find encoder for type accesslog. an implicit encoder[accesslog] is needed to store accesslog instances in a dataset
- how to create a parser from regex in scala to parse a path?
- create a new column based on date checking
- implicit arguments: how to encode in function signature?
- sorting union of streams to identify user sessions in apache flink
- redirecting stdin and stdout in scala
- how to group by on a field inside an array of an array of records?
- how async action api works in play framework 2.2.x for scala?
- extract fieldtype key and value from hlist
- how to parse a csv string into a spark dataframe using scala?
- initializing a val lately
- how to combine two rdd[string]s index-wise?
- spark sbt compile error librarydependencies
- need help trying to parse file and create map in scala
- why does dispatch throw “java.net.connectexception: general sslengine …” and “unexpected status” exceptions for a particular url?
- spark/scala create empty dataset using generics in a trait
- how to execute dynamic sqls in streaming queries?
- how to find common elements among two array columns?
- when should .empty be used versus the singleton empty instance?
- setting whitespace as delimiter in javatokenparsers
- creating new scala object in drools right hand side
- in scala 2.11+ reflection, how to reliably convert a typetag and a manifest into each other?
- how to show proper json response from scala controller class?
- scala pattern syntax exception
- scala play 2.3.0 with anorm - can't use pattern matching (intellij cannot resolve symbol row)
- scalatest plusplay selenium not able to resize a window
- insert json into hbase as json - scala
- scala udf returning 'schema for type unit is not supported'
- spark scala - how to construct scala map from nested json?
- in spark scala, how to check between adjacent rows in a dataframe
- super constructor cannot be passed a self reference unless parameter is declared by-name
- linkedhashmap variable is not accessable out side the foreach loop
- stop processing maps in scala
- pattern match a seq with range
- hdfs: move multiple files using java / scala api
- spark : exception in thread “main” java.lang.classnotfoundexception: com.mysql.jdbc.driver
- how do i get typearguments?
- how to fix this error “not found: value bmvalsprocessor”
- calling a method from annotation using reflection
- calculate average using spark scala
- scala seq groupby with future
- scala tail recursive to not tail recursive
- kafkaconsumer connects to the wrong broker, and therefore cannot consume
- parsing scala json into dataframe
- joining huge list of data frames causes stack-overflow error
- how can i use an sbt plugin as a dependency in a multi-project build?
- how to execute a task or command after another task even if it failed
- merge multiple records in a dataframe based on a key in scala spark
- error: could not find or load main class in scala
- scala, class using mutable var, update in overriding method
- how to implicitly figure out the type at the head of a shapeless hlist
- how does akka stream's keep right/left/both result in a different output?
- annotation macro that rewrites and impls a trait, generics not processed correctly
- akka-http route not found?
- how to call this objects methods in a map?
- how to clean up byte character like ÿþ?
- scala: macro to create an instance from a class body
- scala - anonymous object select query
- how to get status of _delete_by_query api in elasticsearch using scala
- use sparksession.sql() with jdbc
- dataframe to rdd[(string, string)] conversion
- get count of rows in table a that have a reference to table b
- how come the following code prints success(4) if i'm throwing an exception inside?
- behaviour of withdefaultvalue in mutable.map
- defining instances of a third-party typeclass, implicit not found but explicit works fine
- process csv from rest api into spark
- scala: `ambigious implicit values` but the right value is not event found
- how to use scala spray detach?
- enforce bounded nat?
- row aggregations in scala
- scala - how to use foreach loop in for comprehension block?
- how to encode string values into numeric values in spark dataframe
- scala abstract types in classes within objects
- how to get the values in dataframe with the correct datatype?
- run transactionally and retrieve result in future
- string format with named values
- how to flatten list[any]?
- apache spark sql get_json_object java.lang.string cannot be cast to org.apache.spark.unsafe.types.utf8string
- comparing two rdds
- scala random string
- how to add data to a triemap[long,list[long]] in scala
- how to split csv lines into tuples with spark scala
- system.nanotime / system.currenttimemillis = 107 (should this be 1e6 ?)
- what does “abstract over” mean?
- advantages of scala's type system
- cannot print the contents of rdd
- design patterns for functional-oo hybrid languages?
- what’s the difference between scalatest and scala specs unit test frameworks?
- function parameter types and =>
- are there any provable real-world languages? (scala?)
- how to compute summary statistic on cassandra table with spark dataframe?
- what's the difference between a<:b and +b in scala?
- how to get scala list from java list?
- traits and abstract methods override in scala
- mixins vs composition in scala
- scala: what is the best way to append an element to an array?
- what types are special to the scala compiler?
- what are practical uses of applicative style?
- how to understand traverse, traverseu and traversem
- scala in osgi container?
- what are the benefits of scala? [closed]
- configuration data in scala — should i use the reader monad?
- shapeless: generic.aux
- which gof design pattern(s) has entirely different implementation (java vs scala)
- how can i execute multiple tasks in scala?
- choosing a scala web framework [closed]
- scala: difference between a typeclass and an adt?
- explicit type conversion in scala
- scala versus f# question: how do they unify oo and fp paradigms?
- what is mapped buffer pool / direct buffer pool and how to increase their size?
- difference between case class and case object?
- akka logging outside actor
- what's the difference between :: and ::: in scala
- on performance and java interoperability: clojure vs. scala
- match multiple cases classes in scala
- sbt: start a command line 'run' of the main class of a non-default project
- defining a function with multiple implicit arguments in scala
- identify and describe scala's generic type constraints
- how would one do dependency injection in scala?
- how to release a scala library to maven central using sbt?
- can i access my scala app's name and version (as set in sbt) from code?
- what orms work well with scala? [closed]
- how to use scala in intellij idea (or: why is it so difficult to get a working ide for scala)?
- web scraping with scala [closed]
- akka stream kafka vs kafka streams
- what are the pros of using traits over abstract classes?
- simple, hassle-free, zero-boilerplate serialization in scala/java similar to python's pickle?
- where can i set proxy for sbt in intellij idea?
- how to add tracing within a 'for' comprehension?
- understand how to use apply and unapply
- typesafe config: load additional config from path external to packaged scala application
- explain contramap
- foldleft using foldright in scala
- using sbt from scala ide
- are there any good clojure benchmarks?
- get rid of scala future nesting
- working with scala collections - canbuildfrom trouble
- why `scala.util.try` is not mentioned in chapter “handling errors without exceptions” of book “functional programming in scala”?
- how to write “asinstanceofoption” in scala
- scala advantages after java having closures [closed]
- what is the difference between a “trait” and a “template trait”?
- sbt: publish to corporate nexus repository unauthorized
- are there any tools for performing static analysis of scala code? [closed]
- spark - extracting single value from dataframe
- what are the differences between final class and sealed class in scala?
- scala forall example?
- map a future for both success and failure
- explanation of singleton objects in scala
- functional implementation of tarjan's strongly connected components algorithm
- how do you serialize a map to json in scala?
- is it possible to use 'yield' to generate 'iterator' instead of a list in scala?
- android without java
- +- signs in generic declaration in scala
- is there better way to display entire spark sql dataframe?
- how to use sbt with google app engine?
- logging in scala
- clojure or scala for bioinformatics/biostatistics/medical research [closed]
- making sense of scala fp libraries
- why is foreach better than get for scala options?
- how do `map` and `reduce` methods work in spark rdds?
- what is the relation between iterable and iterator?
- what's the difference between join and cogroup in apache spark
- improving the jvm for scala [closed]
- can't understand iteratee, enumerator, enumeratee in play 2.0 [closed]
- scala, guidelines on return type - when prefer seq, iterable, traversable
- how to convert a seq[a] to a map[int, a] using a value of a as the key in the map?
- what is the preferred way to implement 'yield' in scala?
- understanding infix method call and cons operator(::) in scala
- how to execute tests that match a regular expression only?
- how to disable package and publish tasks for root aggregate module in multi-module build?
- how can i easily get a scala case class's name?
- what is the meaning of an assumption in scala compared to an assertion?
- min/max with option[t] for possibly empty seq?
- scala, repeat a finite list infinitely
- permanently hidden warning in scala application
- scala case match default value
- graph library for scala [closed]
- scala's .type and java's .class literal
- how to show custom failure messages in scalatest?
- get min and max from a specific column scala spark dataframe
- play framework 2.1 - cannot find an implicit executioncontext
- how do i abstract the domain layer from the persistence layer in scala
- passing scala class as parameter?
- what are some examples of type-level programming? [closed]
- how to create a dataframe from a text file in spark
- spark - task not serializable: how to work with complex map closures that call outside classes/objects?
- how to find the largest element in a list of integers recursively?
- how do i get the scala version from within scala itself?
- what is monoid homomorphism exactly?
- how do i refresh updated git dependency artifacts in sbt?
- should i use list[a] or seq[a] or something else?
- scala map foreach
- scala 2.8 control exception - what is the point?
- scala dependency injection: alternatives to implicit parameters
- multiple ws call in one action, how to handle promise objects?
- scala's for-comprehensions: vital feature or syntactic sugar?
- what are advantages of a twitter future over a scala future?
- replace element in list with scala
- can we use match to check the type of a class
- unit testing scala
- scala: inputstream to array[byte]
- best practices for mixing in scala concurrent.map
- can i do async form validation in play framework 2.x (scala)?
- specialization of generic functions in scala (or java)
- in scala, is there a shorthand for reducing a generic type's arity?
- what does [b >: a] do in scala?
- adding new task dependencies to built-in sbt tasks?
- reified generics in scala 2.10
- scala io monad: what's the point?
- how to prevent gitlab ci from downloading sbt every time?
- how to persist enum value in slick
- how do i print a list of anything in scala?
- what is the most straightforward way to parse json in scala?
- serializing objects to json with play.api.libs.json
- how to pass a tuple argument the best way?
- how do the scala based frameworks stack up for a complete scala newbie - lift, play, circumflex, etc [closed]
- struggle against habits formed by java when migrating to scala
- what does the word “action” do in a scala function definition using the play framework?
- lifting methods to function values in scala
- how can i combine the typeclass pattern with subtyping?
- how to create a custom encoder in spark 2.x datasets?
- (sbt) how to disable default resolver and only use the company internal resolver?
- finding the index of an element in a list scala
- clojure protocols vs scala structural types
- scala functional programming gymnastics
- is scala/java not respecting w3 “excess dtd traffic” specs?
- scala safe way of converting string to enumeration value
- avoiding boxing/unboxing within function
- using scala constructor to set variable defined in trait
- does being a competent scala programmer require you to be a competent java programmer? [closed]
- annotating constructor parameters in scala
- creating hive table using parquet file metadata
- scala: how can i get an escaped representation of a string?
- spark: what options can be passed with dataframe.saveastable or dataframewriter.options?
- how does scala's vector work?
- scala - case match partial string
- how to provide default value for implicit parameters at class level
- scala type keyword: how best to use it across multiple classes
- threading extra state through a parser in scala
- how to get the difference between two lists?
- scala: passing one implicit parameter implicitly and the other explicitly. is it possible?
- how are scala closures transformed to java objects?
- removing nodes from xml
- cleaner tuple groupby
- getting autoincrement values with slick library in scala
- how is the pojo/javabean pattern treated in scala?
- issuing native system commands in scala
- lazy function definitions in scala
- when to use partially applied functions [closed]
- scala using java libraries, taking advantage of lambda expressions support in java 8
- why are integration tests in a play/scala project not executed when using “sbt it:test”?
- play: how to transform json while writing/reading it to/from mongodb
- is it good to put jdbc operations in actors?
- how to match dataframe column names to scala case class attributes?
- union of two sets in scala
- spark - scala - how can i check if a table exists in hive
- how can i load avros in spark using the schema on-board the avro file(s)?
- how do you perform blocking io in apache spark job?
- adding an item to an immutable seq
- scala - can a lambda parameter match a tuple?
- values, types, kinds,… as an infinite sequence?
- does scala scale better than other jvm languages?
- difference await.ready and await.result
- in scala, how to get a slice of a list from nth element to the end of the list without knowing the length?
- listenablefuture to scala future
- “convert” option[x] to x in scala
- optionally adding items to a scala map
- in scala, is there a way to take convert two lists into a map?
- scala pattern matching confusion with option[any]
- background task in scala
- scala: boolean to option
- how to access values in array column?
- how to remove / dispose a broadcast variable from heap in spark?
- scala string to scala.xml.elem
- how do i declare a constructor for an 'object' class type in scala? i.e., a one time operation for the singleton
- unresolved dependencies error while trying to create jar
- how can i find a description of scala compiler flags/options?
- what parts of the java ecosystem and language should a developer learn to get the most out of scala?
- scala sbt: standalone jar
- default value for type parameter in scala
- scala futures and java 8 completablefuture
- scala inherit parameterized constructor
- can scala's cake pattern be implemented in haskell?
- haskell equivalent to scala's groupby
- how do i best share behavior among akka actors?
- what are the differences between a scala future and a java future
- run multiple futures in parallel, return default value on timeout
- scala's tuple unwrapping nuance
- generics and constrained polymorphism versus subtyping
- how to deal with long initialization of an akka child actor?
- how to create a spark dataset from an rdd
- can i use a scala class which implements a java interface from java?
- error handling scala : future for comprehension
- error handling monads in scala? try vs validation
- beginner: scala type alias in scala 2.10?
- is adding a trait method with implementation breaking backward compatibility?
- what is the behavior of scala.concurrent.executioncontext.implicits.global?
- parsing json in play2 and scala without data type
- how to have sbt subproject with multiple scala versions?
- scala best practices: trait inheritance vs enumeration
- closures and universal quantification
- aggregate list values in scala
- what is the meaning of !# (bang-pound) in a sh / bash shell script?
- is there a scala/java equivalent of python 3's collections.counter
- scala converting recursively bounded type parameter (f-bounded) to type member
- iterate over case class data members
- investigation of `type` and `#` keywords in scala
- slick left outer join fetching whole joined row as option
- how to disable “slow” tagged scalatests by default, allow execution with option?
- running the first example of playframework in intellij on a mac osx
- scala: mocking and the cake pattern
- spark dataset select with typedcolumn
- scala: implementing a subtype of numeric[t]
- akka and reactivemongo
- convert row to map in spark scala
- how to display a keyvaluegroupeddataset in spark?
- boundaries between services, filters, and codecs in finagle
- kafka quickstart: what dependencies do i need?
- when to use call-by-name and call-by-value?
- working with some() and option() in scala
- sbt-like features in the haskell build ecosystem
- how to reverse generate a url from a route on play 2?
- folding a list of different types using shapeless in scala
- infinite streams in scala
- spark streaming on a s3 directory
- scala combinator parser, what does >> mean?
- how to disambiguate links to methods in scaladoc?
- could/should an implicit conversion from t to option[t] be added/created in scala?
- splitting strings in apache spark using scala
- select distinct in scala slick
- scala parser combinators tricks for recursive bnf?
- why does scala apply thunks automatically, sometimes?
- what is shuffle read & shuffle write in apache spark
- monoid vs monad in scala
- find min and max elements of array
- intellij idea 13: new scala sbt project hasn't src directory structure generated
- writing functions of tuples conveniently in scala
- closures in scala vs closures in java
- is passing around actorref to other actors good or bad ?
- spark shell command lines
- scala slick query where in list
- is there some reason to avoid return statements
- scala char to int conversion
- enforce ssl on play! framework
- how to alias a sequence of tasks?
- akka streams: state in a flow
- how to implement generic average function in scala?
- cannot create apply function with static language?
- sbt project for java executable jar
- embedded scala repl interpreter example for 2.10
- how to use not in clause in filter condition in spark
- idiomatic “get or else update” for immutable.map?
- what are the differences and useage patterns for dispatchers in akka 2?
- slick 3.1 - retrieving subset of columns as a case class
- using futures and thread.sleep
- scala future with filter in for comprehension
- how do i replace the fork join pool for a scala 2.9 parallel collection?
- use class variables as constants in scala
- parallel map operations?
- how to paramaterize int as ordered in scala
- convert any scala object to json
- sbt: selecting main class for running
- basic scala oop question - pass by reference?
- given a range, getting all dates within that range in scala
- scala function.tupled and function.untupled equivalent for variable arity, or, calling variable arity function with tuple
- how to view akka dead letters
- passing arguments in apache spark
- how to get the number of workers(executors) in pyspark?
- scala view application puzzler
- scala.js compilation destination
- should we parallelize a dataframe like we parallelize a seq before training
- how to setup intellij for scala 2.10
- using neo4j with scala
- configuration depending on launch mode
- iterate over dates range (the scala way)
- play! framework 2.0 - looping through a map in a scala template?
- deploy scala binaries without dependencies
- what is the purpose of the emptycoproduct and coproduct methods of the typeclass trait in shapeless
- skolemization of existentially typed expressions
- explain this implementation of the y combinator in scala?
- how to measure and display the running time of a single test?
- are futures executed on a single thread? (scala)
- how to test type conformance of higher-kinded types in scala
- spark (scala) filter array of structs without explode
- scala list.filter with two conditions, applied only once
- scala value class, use cases
- creating a new instance of a type in scala
- adding apache common dependency to play framework 2.0
- scala 2.10 typetag usage
- scala scripts in windows batch files
- running a scala script with external dependencies
- spark json text field to rdd
- how are functors useful?
- installing spark on windows 10 spark.hive.hivesessionstate
- sbt 0.11.2 how to combine ~copy-resources with ~aux-compile
- play framework 2.x and blocking database call
- get the last element of a window in spark 2.1.1
- is there a scala identity function?
- scala source code metrics tool (lines of code, lines of comments and so on) [closed]
- is there a python equivalent for scala's option or either?
- scala macros: accessing members with quasiquotes
- exception in intellij's sbt console: not found: value ideaport ideaport in global := 49516
- column alias after groupby in pyspark
- why a encoder is needed for creating dataset in spark
- ubuntu + scala repl, commands not typed on console
- can't find method result on tablequery with slick 3.0.0-rc1
- scala nil equivalent for set
- writing a time function in haskell
- in scala, why is nan not being picked up by pattern matching?
- error utils: uncaught exception in thread sparklistenerbus
- intellij idea 13 ce consuming lots of cpu
- simplify if (x) some(y) else none?
- what does the @elidable annotation do in scala, and when should i use it?
- play! 2.0 scala - accessing global object
- generating uml diagram from scala sources [closed]
- how to add a spark dataframe to the bottom of another dataframe?
- applying logical and to list of boolean values
- what is the accepted/recommended syntax for scala code with lots of method-chaining?
- how to run a scala script within intellij idea?
- is there a pip / easy_install for scala? [closed]
- how to test methods that return future?
- is there a java library for parsing gettext po files? [closed]
- how to represent optional fields in spray-json?
- finding the most frequent/common element in a collection?
- using actors instead of `synchronized`
- are there any ll parser generators for functional languages such as haskell or scala?
- how to configure sbt test / scalatest to only show failures?
- spark: increase number of partitions without causing a shuffle?
- equivalent of scala “case class” in f#
- java try-with-resource not working with scala
- how to call the scala interpreter in a simple build tool project?
- how to populate java.util.hashmap on the fly from scala code?
- akka actor ask and type safety
- how does scala maintains the values of variable when the closure was defined?
- how is reactivemongo implemented so that it is considered non-blocking?
- how to select all columns that starts with a common label
- how to get min by value only in scala map
- spark: difference between collect(), take() and show() outputs after conversion todf
- difference between f[_] and f[t] in scala when used in type constructors
- method with angle brackets (<>)
- is it just a coincidence that kleisli, readert, and reader are the same in scalaz
- is there any advantage to definining a val over a def in a trait?
- library support for scala's notnull trait
- intellij cannot resolve symbol in build.sbt
- collect rows as list with group by apache spark
- scala return on first some in list
- compose partial functions
- which is best data access options available for play framework with scala and postgresql?
- datatype-generic programming libraries for scala
- how can i change version of scala that is used by play, sbt and its plugins?
- how to make sbt `console` use -yrepl-sync?
- play framework testing using multipartformdata in a fakerequest
- scala catalog of functional design patterns
- why are case objects serializable and case classes not?
- caching implicit resolution
- difference between using sealed trait and sealed abstract class as a base class
- why no immutable double linked list in scala collections?
- akka-http with multiple route configurations
- type safe scala actors
- mllib dependency error
- sort tuples by first element reverse, second element regular
- merge sets of sets that contain common elements in scala
- scala dynamic multi dimensional mutable arrays like datastructures
- spark 2 dataset null value exception
- stacking multiple traits in akka actors
- difference between underscore initialization of var and val
- how to call main method of a scala program from the main method of a java program?
- is there any way to generate a uuid in java that is identical to that of the one generated in c#?
- scala recursion vs loop: performance and runtime considerations
- what is the most functional and ready-to-use swt api in scala?
- is option wrapping a value a good pattern?
- play 2.0 fakeapplication setup with test configuration
- derived scala case class with same member variables as base
- akka remote actor server discovery
- simple scala actor question
- scala upperbound and lowerbound concept
- how to find same-value rectangular areas of a given size in a matrix most efficiently?
- ignoring c-style comments in a scala combinator parser
- how to generically extract field names with shapeless?
- intellij multi-module maven project, update in one of the submodules is not propagated to war
- does scala provide anything like c++ templates?
- scripting with scala: how to launch an uncompiled script?
- chain akka-http-client requests in a stream
- how to execute shell builtin from scala
- async computation with validation in scala using scalaz
- how can i use shapeless to create a function abstracting over arity
- using implicit objects within classes
- polymorphic lift-json deserialization in a composed class
- scala monad - full worked example [closed]
- scala - initialize repl environment
- akka futures exceptions
- using typesafe config with spark on yarn
- scala factory for generic types using the apply method?
- how does the <:< operator work in scala?
- add a compile time only sub-project dependency in sbt
- polymorphic instantiation in scala using typetag and classtag
- bulk insert data in hbase using structured spark streaming
- play 2.2 -scala - how to chain futures in controller action
- play [scala]: how to flatten a json object
- serialize to object using scala mongo driver?
- scala parser issues
- spark default null columns dataset
- getting info on groovy functions (name, signature, body code)
- how to use switch/case (simple pattern matching) in scala?
- how to handle exceptions in spark and scala
- spark dataframe - windowing function - lag & lead for insert & update output
- bind multiple objects in play framework 2.0 from a form
- is it possible to use gradle to develop scala projects?
- how do i model a relational database link-table with scala?
- how to get more information about 'feature' flag warning?
- scalac error: bad option: '-make:transitive' on mvn package via command line
- how does pattern matching in scala overcome duplication that switch case causes?
- how can i find the index of the maximum value in a list in scala?
- is there a scala equivalent of the python list unpack (a.k.a. “*”) operator?
- should x._1,x._2… syntax be avoided?
- why does the andthen of future not chain the result?
- typedef in scala
- adding .jar's to classpath (scala)
- why do i get a malformedinputexception from this code?
- how to convert scala map into json string?
- tell sbt to collect all my dependencies together
- new desugaring behavior in scala 2.10.1
- python equivalent of scala case class
- pattern matching and infinite streams
- add tools.jar in the classpath of sbt project
- scala app val initialization in main method
- spark dataframe filter
- scala: collecting updates/changes of immutable state
- convert scala.math.bigdecimal to java.math.bigdecimal?
- try … catch … finally return value
- how to use system properties to substitute placeholders in typesafe config file?
- does collect_list() maintain relative ordering of rows?
- scala: mutable vs. immutable object performance - outofmemoryerror
- unit test logger messages using specs2 + scalalogging
- decoding structured json arrays with circe in scala
- why scala uses reflection to call method on structural type?
- when are scala's for-comprehensions lazy?
- is a collection with flatmap a monad?
- java bytecode decompiler in intellijidea for scala
- scala slow builds: development approaches to avoid
- sbt depend on specific snapshot version
- conversion of scala map containing boolean to java map containing java.lang.boolean
- how do i filter rows based on whether a column value is in a set of strings in a spark dataframe
- how do i port an existing scala library to scalajs?
- how to make method return the same generic as the input?
- use spark to list all files in a hadoop hdfs directory?
- why can't i assign to var in scala subclass?
- scala perf: why is this scala app 30x slower than the equivalent java app?
- scala implicitly vs implicit arguments
- sbt sourcegenerators task - execute only if a file changes
- custom json validation constraints in play framework 2.3 (scala)
- attaching sources in intellij idea for scala project
- how does spark interoperate with cpython
- prestart hook: a message to the actor itself
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- understanding case class and traits in scala
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- is there a scala command-line debugger?
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- scala while(true) type mismatch? infinite loop in scala?
- case class and companion object
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- how to use functions provide by dataframenafunctions class in spark, on a dataframe?
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- shorter scala script header
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- how do i get the absolute remote actor url from inside the actor?
- how to continuously monitor a directory by using spark structured streaming
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- scala dataframe null check for columns
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- scala cats effects - io async shift - how does it work?
- spark select with a list of columns scala
- scala “update” immutable object best practices
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- how are scala's traits not really traits?
- getting elements from an hlist
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- how do i generate new source code in text form in a scala compiler plugin?
- in scala type parameters, what do ->> and ->>> mean?
- binary operator with option arguments
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- scala 2.8 treemap and custom ordering
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- why is this simple spark program not utlizing multiple cores?
- moving spark dataframe from python to scala whithn zeppelin
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- chain functions in different way
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- traits and serialization/deserialization
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- compare data in two rdd in spark
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- scala cast to generic type (for generic numerical function)
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- cartesian product traverse in scalaz
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- find size of data stored in rdd from a text file in apache spark
- help rewriting in functional style
- trying to read and write parquet files from s3 with local spark
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- disadvantages of immutable objects
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- spark: shuffle operation leading to long gc pause
- spark dataframe select rows with at least one null or blank in any column of that row
- path-dependent type inside class value in scala
- cast values of a spark dataframe using a defined structtype
- monad's left unit law does not seem to hold for lists in scala. are scala lists not monads then?
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- how to create object/singleton of generic type in scala?
- get scala type for a java.lang.class[t] in scala 2.10
- how spark loads the data into memory
- computing rank of a row
- spark date format issue
- scala. higher order function calling by name. does it make sense
- how can i skip tests in an sbt build?
- connecting cassandra cluster through scala
- scala reference equality
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- scala compiler not found in intellij idea 11 with play 2.0 project
- is there an easy way to convert a boolean to an integer?
- convert a byte array to string
- how to add a new class in a scala compiler plugin?
- how do you write a dataframe/rdd with custom delimeiter (ctrl-a delimited) file in spark scala?
- how to get a random element from a set in scala
- how do i create a testactorref in scala for an actor with constructor params?
- which functionality/feature in scala only exists as a concession to the underlying platform and should be removed if targeting something else?
- conflicting cross-version suffixes (sbt, scala-stm, play-json)
- how to create an akka-stream source from a flow that generate values recursively?
- how can i pass jvm options to sbt to use when running the app or test cases?
- what does scala's “try” mean without either a catch or finally block?
- find elements in a list that are not in the second list (in scala)
- convert scala option to java optional
- importing test classes into scala console in sbt?
- scala: who can explain this?
- synthetic function “##” in scala
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- scala: replace newline, tab and return sequences from string
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- scala equality with type checking?
- generate option[t] in scalacheck
- function composition of methods, functions, and partially applied functions in scala
- java.util.iterator to scala list?
- what new features will be added to scala 2.9?
- return type in if expression
- one play 2 framework app - use both java and scala
- having problems with akka 2.1.2 scheduler ('system' not recognized)
- comparing haskell and scala bind/flatmap examples
- simplest way to sort list of objects
- why aren't my scala futures more efficient?
- string interpolation and macro: how to get the stringcontext and expression locations
- why doesn't function2 have an andthen method?
- what's the scala syntax for a function taking any subtype of ordered[a]?
- akka jvm threads vs os threads when performing io
- intellij: “error running scala console: cannot start process”
- what is the proper way to remove elements from a scala mutable map using a predicate
- when using scala futures, will chained callbacks with the same execution context be optimised into synchronous calls?
- unwrapping a list or map as function arguments in scala
- scala: how to access a class property dynamically by name?
- scala: how to initialize an object using default values
- defining implicit view-bounds on scala traits
- accessing scala nested classes from java
- what's the reasoning behind adding the “case” keyword to scala?
- what is the difference between array and wrappedarray in scala
- scala modifiers and type parametrization
- code generation with scala
- finite state machine and inter-fsm signaling
- circe and scala's enumeration type
- parsing a large (30mb) json file with net.liftweb.json or scala.util.parsing.json gives outofmemoryexception. any recommendations?
- are there plans to support “type providers” for scala's siq (scalaintegratedquery) like in f#?
- throwing always the same exception instance in java
- shapeless hlist to tuplen where the tuple shape need not exactly match the hlist shape
- scala regex replace with anonymous function
- mapping a stream with a function returning a future
- testing akka actors that mixin stash with testactorref
- when does a stream need to be lazy?
- need plain english translation of the following scala snippet
- limiting maximum size of dataframe partition
- how can i get scala toolbox to see repl definitions?
- using future callback inside akka actor
- spark: saveastextfile without compression
- why do we need nil while creating list in scala?
- is recursion in scala very necessary?
- what is the easiest way to implement a scala partialfunction in java?
- how to save a partitioned parquet file in spark 2.1?
- what is the scala equivalent of clojure's atom?
- access scalatest test name from inside test?
- a variable used in its own definition?
- about future.firstcompletedof and garbage collect mechanism
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- clean solution for dropping into repl console in the middle of program execution
- how to find file size in scala?
- scala+android: is anybody successfully building and debugging in eclipse?
- blocking keyword in scala
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- scala - compose function n times
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- how to determine type parameter's variance?
- scala continuation and exception handling
- scala: implicit evidence for class with type parameter
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- getting intellij idea understand sbt dependencies
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- can you test nested functions in scala?
- what's the difference between task and io in scalaz?
- scala spark contains vs. does not contain
- scala repl: how to find function type?
- aggregate rows of spark dataframe to string after groupby
- why do overridden variables get the wrong values in scala?
- spray-json and list marshalling
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- how to run a spark example program in intellij idea
- scala extra no-arg constructor plus default constructor parameters
- newbie scala question about simple math array operations
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- type aliasing java classes with statics
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- covariance in type-level programming
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- partition a spark dataframe based on column value?
- spark merge dataframe with mismatching schemas without extra disk io
- what is the standard way to optimise mutual recursion in f#/scala?
- list of classes implementing a certain typeclass
- violation of the left identity law for future monads in scalaz
- scala: receiving server-sent-events
- get type of a “singleton type”
- akka actor - wait for some time to expect a message, otherwise send a message out
- how does foldleft in scala work on dataframe?
- when are threads created for scala actor's reacts?
- implicit resolution with contravariance
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- spark java : creating a new dataset with a given schema
- scala — how to use functors on non-function types?
- writing to a file in apache spark
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- why does spark/scala compiler fail to find todf on rdd[map[int, int]]?
- authorisation check in controller - scala/play
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- spark graphx aggregation summation
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- how to initialize the value from trait in subtype?
- spark sql fails because “constant pool has grown past jvm limit of 0xffff”
- can i compile a scala project with mixed java and scala code with dependencies both ways in maven?
- scala interactive interpreter (repl) - how to redirect the output to a text file?
- why mutable map becomes immutable automatically in userdefinedaggregatefunction(udaf) in spark
- implementing list#flatmap
- how to use java proxy in scala
- mapping over hlist inside a function
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- a better syntax for recovery from a for comprehension
- re-using a schema from json within a spark dataframe using scala
- implement java interface with raw type from scala
- how to override an implicit value?
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- how to convert a date time string to long (unix epoch time) in java 8 (scala)
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- scala dsl: method chaining with parameterless methods
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- scalatest - writing custom matchers
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- text manipulation in spark and scala
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- play framework multi-tenant filter
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- spark scala udp receive on listening port
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- using a polymorphic function to extract an object from options
- convert scala list[string]/list[object] into model/hlist/tuple
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- how to filter data using window functions in spark
- how to declare dependency on scalding in sbt project?
- connect to sqlite in apache spark
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- transpose dataframe single row to column in spark with scala
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- about scala's assignments and setter methods
- higher kinded types in scala
- replace groupbykey with reducebykey in spark
- generic iterator over dataframe (spark/scala)
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- spark join *without* shuffle
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- how does one combine scalafxml with gradle?
- how to prefill a dropdown using scala template and play framework
- task not serializable in spark caused by utfdataformatexception: encoded string too long
- aws s3 : spark - java.lang.illegalargumentexception: uri is not absolute… while saving dataframe to s3 location as json
- calling functions before they are defined (forward reference extends over definition of variable)
- checking if an rdd element is in another using the map function
- how to access lookup(broadcast) rdd(or dataset) into other rdd map function
- spark dataframe groupby with sequence as keys arguments
- how do you turn a scala list into pairs?
- spark job server with java
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- what is/are the scala way(s) to implement this java “byte[] to hex” class
- println in scala for-comprehension
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- scala's for-comprehension `if` statements
- how to split sentence into words separated by multiple spaces?
- using the “should not produce [exception]” syntax in scalatest
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- statically typed metaprogramming?
- call super constructor
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- intellij scala worksheet can't find project classes
- scala and java bigdecimal
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- akka - resending the “breaking” message
- 'copy' for non-case classes?
- how to shuffle the rows in a spark dataframe?
- shuffle a list in scala
- scalatest : object scalatest is not a member of package org
- how to call scala's option constructors from java
- order by value in spark pair rdd
- reverse ajax (comet) and spring mvc vs. scala/lift?
- other programming languages that support implicits “a la scala”
- scala equivalent of haskell's do-notation (yet again)
- is there any fundamental limitations that stops scala from implementing pattern matching over functions?
- extract values from array into tuple
- pattern matching on testing expected message
- scala either map right or return left
- how to turn off netty library debug output?
- how to call a method n times in scala?
- spark save(write) parquet only one file
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- how can i delegate to a member in scala?
- convert scala future to java future
- confused about scala method calling conventions, specifically the sum function on seq
- why do case classes extend only product and not product1, product2, …, productn?
- implementing a single scala constructor that does more than set variables
- scala: type mismatch; found : unit required: boolean
- how can i avoid mutable variables in scala when using zipinputstreams and zipoutpustreams?
- why are scala's `lists` implemented as linked lists
- getting better error messages from play json api
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- akka actorfor vs passing an actorref
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- play json: transforming a reads[t] to reads[seq[t]] without implicits
- scala.collection.breakout vs views
- how to programmatically determine if the class is a case class or a simple class?
- timeout exception in apache-spark during program execution
- how to read a chain of scala function parameters
- is either the equivalent to checked exceptions?
- how to convert json to a type in scala
- value classes introduce unwanted public methods
- how to find which java/scala thread has locked a file?
- why java complains about jar files with lots of entries?
- how to get rid of scalac serverexception with intellij idea
- why use def and val in scala or vice versa
- in scala, how to check if a map contains all entries from another map?
- can i override a scala class method with a method from a trait?
- implicit conversion, import required or not?
- any differences between asinstanceof[x] and tox for value types?
- scala: why are actors lightweight?
- how to find the longest common prefix of two strings in scala?
- how do i supply an implicit value for an akka.stream.materializer when sending a fakerequest?
- spark task not serializable with lag window function
- value assignment inside for-loop in scala
- what is the difference between the different overriding methods in scala?
- how to apply manually evolutions in tests with slick and play! 2.4
- scala equivalent to wsdl2java?
- scala type parameter being inferred to tuple
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- generics in scala: implementing an interface/trait twice?
- scala string interpolation with format, how to change locale?
- scala play! using anorm or orm
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- scala - can 'for-yield' clause yields nothing for some condition?
- what does `<<=` mean in sbt?
- handle akka stream's first element specially
- is there ever a reason to use scala's stringlike.replaceallliterally over java's string.replace?
- how can parameters/settings be passed to a scala macro?
- when to use companion object factory versus the new keyword
- unmodifiable view of a mutable scala collection
- scala either.rightprojection confusion (for comprehension de-sugaring)
- convert try to future and recoverwith as future
- shapeless: map from coproduct to different coproduct
- scala: how to understand the flatmap method of try?
- on scala project - getting error gc overhead limit exceeded when running sbt test command
- scala play - “not found: value routes” (eclipse and idea)
- scala warnings, intellij and compiler flags
- how can i take any function as input for my scala wrapper method?
- update case class from incomplete json with argonaut or circe
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- how to start a scala method from command line?
- use common settings in sbt `rootproject`
- partial functions in scala
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- practical difference between def f(x: int) = x+1 and val f = (x: int) => x+1 in scala
- can i set a timeout and number of retries on a specific pipeline request?
- how to use scala cats validated the correct way?
- akka actor priorities
- why don't scala primitives show up as type parameters in java reflection?
- scala macros: checking for a certain annotation
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- how can i configure idea to automatically replace => with ⇒ and -> with →?
- dependency injection with akka
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- specifying the lambda return type in scala
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- scala: tree insert tail recursion with complex structure
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- scala and state monad
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- all permutations with repetition using scala
- sbt: cross-platform way to set java.library.path?
- general 'map' function for scala tuples?
- scala match case on regex directly
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- snakeyaml and spark results in an inability to construct objects
- scala by example - trait type parameter with context bounds mistake?
- protected members of other instances in scala
- how to preserve time zone in joda-time timestamp?
- how can i obtain function objects from methods in scala?
- scala case class uses shallow copy or deep copy?
- select certain super class for method call in scala
- scala play json no unapply or unapplyseq function found
- sbt task classpath
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- why is the main function not running in the repl?
- type constructor as return type
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- scala self type and this.type in collections issue
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- scala slick 2 join on multiple fields?
- how do i get an unwrapped key in typesafe config?
- how to discover that a scala remote actor is died?
- selection sort in functional scala
- how can i connect to a mysql database using scala?
- scala generics and numeric implicits
- what is scalas product.productiterator supposed to do?
- scala split seq or list by delimiter
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- why is a range transformed to a vector after map operation?
- how to use mocks with the cake pattern
- scala higher kinded types in implicit def fails with “could not find implicit value”
- scala: lightweight way to put arrays in a set or map
- zip elements with odd and even indices in a list
- why does scala fail to find a secondary implicit value in this one particular case?
- how do purely functional compilers annotate the ast with type info?
- how to avoid when using scalaz's free monad?
- can you use antixml to create xml documents?
- how to export properties of shared case classes
- is using optional in scala's case classes and classes fields a code smell?
- how to make custom task avoid redoing work if the input files are unchanged?
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- read file on remote machine in apache spark using ftp
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- scala eclipse file>new has <no applicable items>
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- how to use anorm outside of play?
- how to make squeryl work with the play! framework?
- scala play framework: binding form parameters to hidden fields
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- create a scala script file in eclipse
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- why is this clojure program working on a mutable array so slow?
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- scala - easiest 2d graphics for simply writing a 2d array to the screen? [closed]
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- how to early return in scala
- xml equality problem with scala
- how to concatenate multiple columns into single column (with no prior knowledge on their number)?
- how to add days (as values of a column) to date?
- akka warning about “too many hashedwheeltimer instances”
- what is the most succinct scala way to reverse a map?
- convert scala ast to source code
- tupled method for case class having a type parameter
- getting type information inside scala repl via imain
- sbt installation error (module not found: org.scala-sbt.ivy#ivy;2.3.0-sbt-2cf13e211b2cb31f0d3b317289dca70eca3362f6)
- how can i deserialize from json with scala using *non-case* classes?
- how to generate a class in dotty with macro?
- apache spark: driver (instead of just the executors) tries to connect to cassandra
- logger names for configuring akka logger using the event-handler
- scala pattern matching syntax
- reduce() vs. fold() in apache spark
- best way to handle object's fields validation => either / try (scala 2.10) / validationnel (scalaz)
- referential transparency
- scala abstract type representing type of subclass
- understanding `monomorphism` example of shapeless
- memory visibility in fork-join
- implicit parameter vs default parameter value
- mapped types in scala
- cache an intermediate variable in an one-liner
- shuffled vs non-shuffled coalesce in apache spark
- problem with scala matching + scope
- do size and length in scala collections generate the same byte code?
- how to convert a map to spark's rdd
- pure functional random number generator - state monad
- how to build, compile and run a scala project?
- compile string to ast inside compilerplugin?
- using listview from scala 2.9.2 with java 7 gives compile error
- create a custom scala collection where map defaults to returning the custom collection?
- applying indextostring to features vector in spark
- how do i forward repeated arguments in scala?
- what's the difference between using databaseconfig and database in slick?
- akka actor “ask” and “await” with timeoutexception
- how to exclude files under conf folder for distribution?
- using traits with a factory
- sbt: error importing resteasy-client
- scala case class copy doesn't always work with `_` existential type
- how does scala use all my cores here?
- simplest way to add doctype to scala xml?
- scodec combinators: header contains magic number that is used to discriminate types
- why does `future#tostring` returns `“list()”`?
- consumer poll rate with akka, sqs, and camel
- compare types in scala
- high-performance rest api - which language/stack? [closed]
- how to re-use compiled sources in different machines
- curried function in scala
- how to obtain the trained best model from a crossvalidator
- creating objects from type alias in scala
- sbt: add dependency on scalatest library. where?
- implicit parameter resolution - setting the precedence
- populating a list is scala with random double taking forever
- scala return type when extending collection
- slick: combine actions with a seq of dbioaction
- how to build a dynamic sequence in a scala macro?
- does scalatest have any support for assumptions?
- what is a “kind” in the context of type systems?
- how do existential types overlap with path-dependent types?
- is there a way to get all dependencies of the project via sbt plugin?
- why does this code need an empty line or a semicolon?
- how to get max length of string column from dataframe using scala?
- is there a method_missing in scala?
- how to find the name of the enclosing source file in scala 2.11
- can a function literal use type parameter in scala?
- performance of scala parallel collection processing
- how to use extractor in polymorphic unapply?
- how to write a dataframe schema to file in scala
- group by column “grp” and compress dataframe - (take last not null value for each column ordering by column “ord”)
- scala higher kinded type variance
- using a havepropertymatcher for collection elements in scalatest?
- add leading zeros to columns in a spark data frame
- where to search for scala syntax - reserved words, keywords, operators?
- select substring between two characters in scala
- how design a specs2 database test, with interdependent tests?
- scala parallel assignments only in declarations
- scala pattern matching on generic type with typetag generates a warning while classtag not?
- `future[option[future[option[x]]]]` into `future[option[x]]`
- custom json serialization of structured scala case classes
- configure sublime text build system for scala?
- how to read a file from a lift webapp
- using liftscreen field or text
- how to read a text file using relative path in scala
- help me understand this scala code: scalaz io monad and implicits
- what is the purpose of anyval?
- how does circe parse a generic type object to json?
- spark structured streaming multiple writestreams to same sink
- haskell scala interoperability
- kafka partition key not working properly
- why is this clojure program so slow? how to make it run fast?
- reuse the result of a select expression in the “group by” clause?
- is this scala parallel array code threadsafe?
- scala collections inconsistencies
- log from spark udf to driver
- spark remove duplicate rows from dataframe
- how to match scala generic type?
- spark sql - generate array of arrays from the sql function
- why do i get a java.nio.bufferunderflowexception in this scala
- value withfilter is not a member of cats io in for comprehension
- how to implement functor[dataset]
- programs running aapt in android sdk from shell and from sbt
- serving static /public/ file from play 2 scala controller
- mapping mongodb documents to case class with types but without embedded documents
- how to abruptly stop an akka stream runnable graph?
- scala play json combinators for validating equality
- scala abstract type members - inheritance and type bounds
- simplest way to generate verilog code from chisel code
- accessing nested fields in avro genericrecord (java/scala)
- how do you throttle flow in the latest akka (2.4.6)?
- how are nested functions and lexical scope compiled in jvm languages?
- how many actors can be launched in scala?
- cost of implicit conversion from java to scala collections
- prevent mixin overriding equals from breaking case class equality
- org.apache.spark.sql.row to int
- slick 3 - upsert works too slow
- play framework 2 scala ws doing a sync request
- 2 extension methods with the same name in different classes do not work in scala 3?
- use proguard for scala aws lambda
- upper-triangular loop idiom for scala lists
- slick: filtering all records which have a joda datetime date equal to today
- convert java.util.stream.stream to scala stream
- how to combine parsers with different types of elem
- how to serialize/deserialize a protobuf message that uses 'oneof' with scalapb?
- how can i create a jar from some scala source code?
- why are scala class methods not first-class citizens?
- understanding gossip protocol
- throttle concurrent http requests from spark executors
- spark/scala - project runs fine from intellij but throws error with sbt
- play2 - template -> incrementing
- scala continuations - why can't my shifted call be inside a try-catch block?
- scala - parameter of type t or => t
- write a thrift server in scala using scrooge and client in python or ruby
- right usage of slick filter
- how to define function accepting curried function parameter?
- could not find implicit value for evidence parameter of type ^
- showing loggedin user info in the header of my web app every time
- how to pass a session variable from one object to another in gatling?
- using spark scala in emr to get s3 object size (folder, files)
- scala pattern match a function - how to get around type erasure
- nosuchmethoderror when using spark and intellij
- scala serialization exception with enumeration value
- right way to use youtube.builder
- compile time type tracing
- pattern for generating negative scalacheck scenarios: using property based testing to test validation logic in scala
- move file from one folder to another on hdfs in scala / spark
- scala: how to define anonymous function with implicit parameter?
- jcef icu check failed
- tolist on shapeless hlist fails when resulting existential type too complex
- howto design a clock driven multi-agent simulation
- how to implement newbuilder for a custom scala collection (with correct variance)?
- custom nio filesystem doesn't load through sbt's test task
- deriving hlist of zeroes from a type of hlist of monoids
- shapeless deconstruct tuple in type parameter declaration
- how to implement receive () in akka actor
- how to transform disjunction of future to future of disjunction
- how can javafx controllers access other services?
- resolving the dependency of scala macros and compiler framework in sbt
- why does scala complain when given this pattern match on an integral value?
- sending post with json using spray?
- how can i use apache math with scala?
- finding the difference of two columns in spark dataframes and appending to a new column
- mocking of blazeclientbuilder[io] to return mock client[io]
- scala library for image creation [closed]
- spark join exponentially slow
- playframework scala howto create temp variable
- scala shapeless klist with extra constraint
- play: how to implement a conditional json validator
- the length of hlist type paremeter in terms of nat
- scala macro: get param default value
- why are input parameters contravariant in methods?
- nested for expressions
- master must start with yarn,spark
- how to add timestamp into my user session and set maximum inactivity duration?
- task not serializable at spark
- restartflow in akka streams not working as expected
- remoteactor unregister actor
- how to suppress deprecation warnings when testing deprecated scala functions?
- flink scala api functions on generic parameters
- how to specify only particular fields using read.schema in json : spark scala
- spark ml: data de-normalization
- how can i package a simple single scala file as a stand-alone jar (no sbt)?
- will the jvm ever inline an object's instance variables and methods?
- abstract result types in free monads
- update actor state only after all events are persisted
- why is flatmap on a vector[option[int]] whose mapper function result is not a vector[option[int]] valid?
- akka stream + akka http - get request on error
- why does not set implement partialfunction?
- pyspark udf optimization challenge using a dictionary with regex's (scala?)
- scala - spark in dataframe retrieve, for row, column name with have max value
- run play scala application with pm2
- scala: how can i create a function that allows me to use dot notation when calling it?
- scala zip list to tuple
- using guice when creating a custom action using actionbuilder in play
- scala tuple unpacking for constructors
- weird nested structural type in generics
- reading a large file using akka streams
- aux pattern for higher-kinded types
- how to combine regexp and keywords in scala parser combinators
- asynctask.doinbackground - abstract method not implemented error in android scala project
- creating index and adding mapping in elasticsearch with java api gives missing analyzer errors
- flatten any nested json string and convert to dataframe using spark scala
- dynamically select multiple columns while joining different dataframe in scala spark
- scala: how to traverse stream/iterator collecting results into several different collections
- how to run a custom task(functional tests written in protractor) while the “run” task is up and running?
- how can i change hdfs replication factor for my spark program?
- scala snippet to typescript (how to convert abstract type members)
- custom constraint in play 2.0-scala?
- scala list comprehension taking two elements at a time
- two dataframe nested for each loop
- spark: accumulators does not work properly when i use it in range
- how should an invariant list be implemented in scala?
- scala spark - dealing with hierarchy data tables
- join datasets with different dimensions - how to aggregate data properly
- slick logging with slf4j-simple
- how to avoid using asinstanceof in scala
- process multiple directories in spark separately
- scala's either not having `flatmap` & meaning of either.left/.right
- scala: error occurred during initialization of vm on ubuntu 12.04
- sending a spark dataframe via email
- play framework json reader and custom jserrors
- mapping of elements gone bad
- best approach to ingest streaming data in lagom microservice
- scala: maintain child class in parent methods?
- can commands be written to support multi-line arguments, i.e. with new lines in them, as heredocs?
- extract kmeans cluster information using apache spark
- optional function parameter with generic return type
- unable to serialize sparkcontext in foreachrdd
- type-safety with adt and aux pattern
- spark flatten seq by reversing groupby, (i.e. repeat header for each sequence in it)
- getting typetag from a classname string
- efficiency/scalability of parallel collections in scala (graphs)
- spark streaming - obtain batch-level performance stats
- scala pararray sorting
- access translated i18n messages from scala templates (play! internationalization)
- how to combine multiple columns in one case class field when using lifted embedding?
- scala: can't get outer class members from inner class reference
- getting the value out of a future in scala
- should i be using slf4j istraceenabled or not?
- gatling. check, if a html result contains some string
- pass a struct to an udaf in spark
- more scala typing issues
- how to iterate each column in a dataframe in spark scala
- passing slick 2.0 implicit session in elegant way
- how do i run a comand line scala script that uses play framework app database?
- is it possible to write a scala macro whose returntype depends on argument?
- how to paralelize spark etl more w/out losing info (in file names)
- scala ambiguous reference to overloaded definition with two implicit parameters
- structured streaming - consume each message
- how to write to a csv file in scala?
- error while in sbt's compile
- translate/encode haskell's `data obj = forall a. (show a) => obj a` in scala
- spark-core 1.6.1 & lift-json 2.6.3 java.lang.noclassdeffounderror
- compiling spark scala program into jar file using installed spark and maven
- how to convert scala scales xml to dom/sax
- scala error: “forward reference extends over definition of value” when code appears in a function
- extract case class field name in scala
- scala: restricting ordered comparison in subclasses to the same subclass
- how to set spark configuration properties using apache livy?
- compile-time check for vector dimension
- get the difference between two dates in hours
- drawing a svg with d3.js while tab is in background
- how to get the annotations of a method in scala 2.11
- how to calculate standard deviation and average values of rdd[long]?
- how to schedule a quartz job with scala
- how should i structure my nested reactivemongo calls in my play2 application?
- how to refer broadcast variable in spark dataframesql
- is it possible to using macro to modify the generated code of structural-typing instance invocation?
- asking a wildcarded actor selection
- scala create array of empty arrays
- slick 2.1.0 filter max version in a table
- mutable hashmap with a mutable default value doesn't keep the changes
- create dynamic query from the dataframe present in spark scala
- scala: random list of val order
- how to calculate 'n' days interval date in functional style?
- compare two numbers
- can i stop the execution of an infinite loop in scala repl?
- does scala have syntax for 0- and 1-tuples?
- how to initialize a scala immutable hashmap with values?
- accept multiple types for a parameter in scala
- scala java error: value filter is not a member of java.util.map. works outside of class
- sample of `forsome { val `?
- what's the purpose of function.const?
- force single argument in scala varargs
- delete directory recursively in scala
- is there a way in sbt to convert compiler warnings to errors so the build fails?
- scala collection type for filter
- why `this.synchronized` instead of just `synchronized` in scala?
- what is the current state of the scala eclipse plugin? [closed]
- getting the value of a settingkey[t]
- what's the difference between shouldbe vs shouldequal in scala?
- scala pattern matching with sets
- why has scala no type-safe equals method?
- is the scala compiler reentrant?
- print out scala worksheet results in interactive mode in intellij
- is there a 'lazy map'?
- semantics of abstract traits in scala
- scala: how to force wrapping an integer as an object?
- how is a match word omitted in scala?
- why are variables not allowed in alternative patterns?
- how to mock child actors for testing an akka system?
- canequal() in the scala.equals trait
- scaladoc (2.11.6) fails on throws tag with “unable to find any member to link”
- scala variadic functions and seq
- field “features” does not exist. sparkml
- add to list if value is not null
- since spark 2.3, the queries from raw json/csv files are disallowed when the referenced columns only include the internal corrupt record column
- scala - ambiguous reference to overloaded definition — with varargs
- scala tuple to string (using mkstring)
- scala slick lazy fetch
- scala parser combinators and newline-delimited text
- scala actors: if react never returns, why does it need to be in a loop{}, and why doesn't while(true) work?
- switch function and object with scalaz' |>
- how to access parent element in scala xml
- scala: return reference to a function
- what is the current element in a scala doublelinkedlist?
- generic customisation of case class tostring
- creating a composition primary key using scala slick
- download a zip from url and extract it in resource using sbt
- reflection api for scala
- covariant type t occurs in invariant position
- illegal start of simple expression in scala
- method taking seq[t] to return string rather than seq[char]
- standard lib or akka for scala.2.10.1?
- scala: var list vs val mutablelist
- how to get the name of a case class field as a string/symbol at compile time using shapeless?
- can snippets take parameters in lift?
- akka (2.3.0) fails to load slf4jeventhandler class with java.lang.classnotfoundexception
- how print akka configuration at startup?
- java 7 style automatic resource management for scala
- map on scalaz validation failure
- noclassdeffounderror using scala plugin for eclipse
- how to resolve java.nio.charset.unmappablecharacterexception in scala 2.8.0?
- what are the benefits of using scala in .net?
- scala - convert array[string] to array[double]
- scala: getting the key (and value) of a map.head element
- why not provide an operator ? : in scala [closed]
- could not find implicit value for parameter flash
- how to stop program execution in worksheet?
- does the order of alternatives in a scala match expression matter in terms of performance?
- 'val' or 'var', mutable or immutable?
- sbt fails with `string.class is broken`
- play framework as sbt non-root module
- how does scala distinguish between () => t and => t
- scala underscores in names
- scala and spark udf function
- scala: what is the generic way to calculate standard deviation
- do self: t => and this: t => have the same meaning when defining a trait?
- how does @inject in scala work
- what kind of morphism is `filter` in category theory?
- wait for an unknown number of futures
- how to access an object foo contained in a scala package object from java?
- shortcut for subclassing in scala without repeating constructor arguments?
- scala stringbuilder
- play framework scala format large json (no unapply or unapplyseq function found)
- initializing a scala bitset from a range
- scala how to get sublist by index
- slick issue when going with postgresql
- "insecure http request is unsupported" error in scala
- scala - "if(true) some(1)" without having to type "else none"
- how to show custom failure message in specs2 (scala)?
- wildcard imports usage in java and scala
- scala: arrays and type erasure
- sequentially combine arbitrary number of futures in scala
- scala getters/setters - best practice?
- scala equivalent of new hashset(collection)
- scalatest and spark giving "java.io.notserializableexception: org.scalatest.assertions$assertionshelper"
- in scala, how do i pass import statements through to subclasses?
- will tuple unpacking be directly supported in parameter lists in scala?
- what is the difference between hashset and set and when should each one be used?
- filtering lists in scala's monocle
- pass system property to spark-submit and read file from classpath or custom path
- akka http client :custom headers
- in scala, what is the difference between using the `_` and using a named identifier?
- scala's infix notation with object +, why not possible?
- play2 framework my template is not seen. : package views.html does not exist
- scala - prefix unary operators
- read xml in utf-8 in scala
- explicitly output json null in case of missing optional value
- scala sortedset - sorted by one ordering and unique by something else?
- output of iterable.sliding as tuple
- why does my takewhile fail to work with my stream
- scala: public static final in a class
- how to import fromstring for joda-time?
- typed function and currying in scala
- how to transform either[future[a], future[b]] to future[either[a, b]]
- scala: can i nudge a combinator parser to be locally greedy?
- fetch object by plain sql query with sorm
- how to manipulate json ast in scala
- foldright efficiency?
- zipper vs. iterator for walking over a list or tree
- single iteration => multiple output collections from java to scala
- what is the use of ::: (triple colons) in scala
- testing request with csrf token in play framework 2.5 (scala)
- setting up multiple test folders in a sbt project
- understanding dag in spark
- splitting an hlist that was concatenated using prepend[a, b]
- convert scala list to dataframe or dataset
- scala script doesn't run on ubuntu
- avoiding redundant generic parameters in scala
- scala: how to suppress unchecked warnings / do pattern matching of maps correctly?
- scala worksheet not working in intellij
- transform `future[option[x]]` into `option[future[x]]`
- map with path-dependent value type?
- handling failures with either -> where is the stacktrace?
- why is scala's behavior in case of overloading with by-name parameters different from the case with by-value parameters?
- why do mutable and immutable listmaps have different orders in scala?
- scala pickling: how?
- how to use >=> in scala?
- ternary operator typing
- how to add proper error handling to cats-effect's resource
- type-safe primitives in scala
- scala inferred type arguments - type bounds inferring to 'nothing'
- configure working directory of scala worksheet
- how to split a string given a list of positions in scala
- scala mouseevent - how to know which button was pressed?
- does it make sense to use a pool of actors?
- malformedinputexception when trying to read entire file
- is it a good style having a trait and an equally named object extending that trait?
- playframework disable csrf filter
- scala: companion objects and "new" keyword
- when should i use scala's array instead of one of the other collections?
- how do i configure jedit for scala projects?
- scala - implicit conversion with unapply
- play framework 2.3.7: static assets location not working in production
- ":" in type parameter
- in scala, is it possible to use implicits to automatically override tostring?
- scala case classes questions
- use scala constants in java
- how do you run cucumber with scala 2.11 and sbt 0.13?
- bug in scala 2.10, iterator.size?
- what algorithm is used by the scala library method vector.sorted?
- behavior of flatmap when applied to list[option[t]]
- scala pattern matching: how to match on an element inside a list?
- why is this scala code slow?
- spark dataframes: extract a column based on the value of another column
- scalamacros and eclipse
- how to convert an rdd of maps to dataframe
- scala api 2.10.*: function2.andthen what happened to?
- execution context for futures in actors
- akka stream consume web socket
- what is the ? type?
- parsing an indentation based language using scala parser combinators
- how to get current timestamp in scala as a string without spaces?
- scala regular expressions (string delimited by double quotes)
- overriding a repeated class parameter in scala?
- create backpressure from a future inside an akka stream
- how to use scala's singleton-object types?
- converting timestamp to utc in spark scala
- can i output a collection instead of a tuple in scalding map method?
- intellij 12 and internal compilation error when building scala project
- cannot use getdeclaredfields() to retrieve fields of a scala class
- akka remote actors, superclass without default constructor
- client-server example with scala actors
- scala: difference between 'type a = xxx' and 'final type a = xx'?
- in scala how to convert one case class to another immune to code changes field additions?
- turning a list/sequence of combinator parsers into a single one
- uploaded file only contains "webkitformboundary"
- why scala escapes spaces in method names?
- scala: parallel collections not working?
- parsing a simple array with spray-json
- converting a list[try[a]] to list[a] in scala
- scalikejdbc: connection pool is not yet initialized.(name:'default)
- how do i create an xml root node in scala without a literal element name?
- play2 does not find my implicit reads or format for json
- scala, java and equality
- scala code causes error in eclipse for playframework-2.0
- overloaded method call has alternatives: string.format
- scoverage: combine coverage from test and it:test
- for each rdd in a dstream how do i convert this to an array or some other typical java data type?
- is there a softhashmap in scala?
- equivalent of pythons repr() in scala
- slick exception when trying to connect to mysql
- scala, currying on multi parameter-group method including implicit params?
- can this be null in scala?
- run tests in broken project using sbt
- scala - dynamic class loading - class a can not be cast to class a
- set default env variable for test configuration in sbt
- scala: defining main method that can be used by 'java'
- importance of cake pattern in scala
- unique id for scala object
- meaning of 2nd parameter in stringops.split(string, int)
- working with opaque types (char and long)
- use 4 (or n) collections to yield only one value at a time (1xn) (i.e. zipped for tuple4+)
- why doesn't type inference work here?
- execute future.sequence with custom executioncontext
- using sorm with play framework 2.3.8
- is this a higher kinded type in scala?
- how can i use and return source queue to caller without materializing it?
- can the subflows of groupby depend on the keys they were generated from ?
- what are the scoping rules for vals in scala for-comprehensions
- how do i make lambda functions generic in scala?
- idiomatic way to convert a => seq[b]
- scala: how can i implement a clone method on a superclass, and use it in a subclass?
- can i override the tostring method of an anonymous function in scala?
- how to select a object field for map value in scala using groupby
- weird behavior accessing tuple from java
- how to use "cube" only for specific fields on spark dataframe?
- how do run scala bytecode on the jvm?
- how do you create json object with values of different types?
- troubles with importing java package to scala project (intellij 10.5.2)
- can i run my scala program without jvm using scala-native?
- is there a way to change the replication factor of rdds in spark?
- creating a spark dataframe from a single string
- noclassdeffound : scala/xml/metadata
- why is there a fold method for form in play 2.0.2?
- match tuple with null
- how to make scala's immutable collections hold immutable objects
- why does mapping over an hlist of option[t] not work?
- spark union fails with nested json dataframe
- the "right" way to use write slick 3.0 scala queries in play framework
- scala pattern matching pretty printed
- java and scala classnotfoundexception after upgrading to intellij 14
- multiple flatmap methods for a single monad?
- what's the neatest way to define circular lists with scala?
- stepping into json arrays in play framework
- how to make -dsbt.override.build.repos=true global for sbt?
- play 2.5 with akka - could not find implicit value for parameter timeout: akka.util.timeout
- scala: assign null to primitive
- equivalent of distributed cache in spark?
- what are the real advantages of immutable collections?
- lazy, breadth-first traversal of a rose tree?
- is this a bug in scala 2.9.0.1 actor library
- how to write an sbt plugin to launch the app with an agent
- how to split string in scala but keep the part matching the regular expression?
- how to get a particular item from the list?
- spark window partition function taking forever to complete
- cannot find jsonwriter or jsonformat type class for a case class
- how to add sbteclipse plugin in eclipse
- sbt unresolved dependencies
- is there a way to initialize multiple variables from array or list in scala?
- scala hashmap of lists: simpler default?
- why does having static members make a language less object-orientated?
- scala forward or delegate methods to encapsulated object
- clojure/scala interop?
- stop all actors in a system without shutting down the system itself?
- how do i consume -d variables in build.scala using sbt?
- "does not take parameters" when chaining method calls without periods
- transforming arrays in-place with parallel collections
- scala - sort based on future result predicate
- scala final variables in constructor
- convert epoch to datetime in scala / spark
- binary serialization - replacing marshal on scala 2.10
- composing two maps
- add yarn cluster configuration to spark application
- how does scala xml support work?
- trait build in package sbt is deprecated: use .sbt format instead
- splitting a comma-separated string in scala: missing trailing empty strings?
- compile error when using a companion object of a case class as a type parameter
- spark convert dataframe to dataset using case class with option fields
- insertion sort implementation in scala
- failing a scalatest when akka actor throws exception outside of the test thread
- do a covariant filter on an hlist
- @beanproperty with propertychangelistener support?
- dynamic order by in scala slick with several columns
- functional programing in scala exercise 6.11. how does this for-comprehension work?
- how to create a vertexid in apache spark graphx using a long data type?
- macro to access source code of function at runtime
- scala pickling: writing a custom pickler / unpickler for nested structures
- what is the actual class (not abstract and not trait) for map and set?
- reduce / fold over list of monoid but reducer returns either
- api compatibility between scala and python?
- scala: why doesn't this compile?
- how can i reduce the number of test cases scalacheck generates?
- play/scala injecting controller into test
- how can i use scala's murmurhash implementation: scala.util.murmurhash3?
- using solr from scala/ play
- using vals from scala package object in java
- converting pattern of date in spark dataframe
- how to implement `except` in apache spark based on subset of columns?
- scala-ide/intellij :: template support for scalate, play, etc
- how do i resolve "error: bad symbolic reference" for dependencies using maven-scala plugin?
- debug scala macros with intellij
- update the last element of list
- how do i ignore ssl validation in play framework scala ws calls
- protocol buffer messages via akka io and sockets
- play scala and thread safety
- create postgresql trigger using jdbc
- convert json objects to rdd
- scalastyle boolean expression can be simplified
- is it good practice to use @beanproperty in scala instead of defining getter/setter functions?
- implement a scala collection so that map, filter, etc. produce the right type
- can monad with broken associativity law yield incorrect result in for-comprehension?
- gatling user injection constantuserspersec
- delaying trait initialization
- how to enforce non-generic type at compile time
- scala - strip all html tags from string except links
- how to resolve a non-jar (dll/jnilib) library dependencies in sbt?
- generic poly2 folder case for shapeless hlist
- type equality in the scala 2.10 reflection api
- how to run python code with args with python -c command from scala
- scala: override implicit parameter to constructor
- getting matcherror when using a placeholder for an unused variable
- when to use `with` for bounding type parameters instead of `<:` or `<:<` in scala?
- how to correctly use spark in scalatest tests?
- how can you make custom function types in scala with named parameters?
- how can i express *finally* equivalent for a scala's try?
- scala generics - why i can't create parametrised object inside generic class?
- scala - string modification in a functional manner
- "no manifest available for type" error
- scala set[_] vs set[any]
- in playframework2, how to serve multiple asset directory?
- type bound error when creating a tuple in scala
- why implicit class in scala must reside in another trait/class/object?
- what languages are mature to develop native apps in android [except java]
- watch for project files also
- is it possible to have a circular dependency between .java and .scala classes?
- error using mockito and specs2
- can intellij idea properly format scala.html files and how do i enable it to do so?
- scala unbound placeholder parameter
- find synthetic members in class fields in scala
- scala playframework send file
- scala thread safe hashset
- spark dataframe column names not passed to slave nodes?
- how can i supply input for an external command?
- how to match specific accept headers in a route?
- can i define “method-private” fields in scala?
- overloaded method error using spark-csv
- the need for the @tailrec annotation in scala?
- keep session in subsequent java calls to play 2.0's fakerequest
- type-safe builder library for scala and java
- scala - how to pattern match when chaining two implicit conversions?
- value join is not a member of org.apache.spark.rdd.rdd
- scala applets - simpleapplet demo
- is there an inject equivalent for haskell in the context of free monads
- java.lang.integer cannot be cast to java.lang.byte error with any type in scala
- dead-letter in akka scala actors
- generic crud operations using slick 2.0
- handling null values in spark stringindexer
- pass function arguments from a iterable in scala?
- how can dataframereader read http?
- calculation distance between points
- why do you need to create these json read/write when in java you didn't have to?
- flatmap on map with wildcard type parameter
- what kinds of functions are considered as "composable"?
- implicit error when trying to implement the `absurd` typeclass
- scala unit testing stdin/stdout
- slick error : type tuplexx is not a member of package scala (xx > 22)
- sbt not resolving transitive dependencies in the <profile> section of pom
- scodec - coproducts could not find implicit value for parameter auto: scodec.codecs.coproductbuilderauto
- play json single field reads validator
- how do i publish a scala app, if i'm asked for credentials?
- real-time streaming prediction in flink using scala
- abstractmethoderror when mixing in trait nested in object - only when compiled and imported
- scala type error - takes no type parameters, expected: one
- prepare data for multilayerperceptronclassifier in scala
- scala infinite iterator outofmemory
- exchanging type parameters with abstract types
- valid usages of implicit parameters
- how to join two datasets by key in scala spark
- data compression in scala
- what is "type" of a function with implict?
- cross join runtime error: use the cross join syntax to allow cartesian products between these relations
- scala.math.bigdecimal : 1.2 and 1.20 are equal
- proguard warnings: can't find referenced class scala.*
- spark rdd mapping one row of data into multiple rows
- why does shutdownhookthread 'setdaemon true'
- improvements for a map merge function
- efficient pairrdd operations on dataframe with spark sql group by
- redefine an sbt task conditional on a setting
- return value of finally block in scala
- what's the advantage of using multiple lists of function parameters?
- how can i apply a play 2 uniqueness validation only when an object is being created?
- scala trait: val/def and require
- using sbt for first time - issue retrieving dependencies behind proxy
- how to compute the sum of orders over a 12 months period sliding by 1 month per customer in spark
- scala combinator parser not backtracking as i would have thought…
- type of a macro annottee
- sparkstreaming: error in filestream()
- finding the 'volume' of a .wav at a given time
- how to deserialize datetime in lift
- remote probing of scala/java application in runtime
- gradle fails to compile basic scala project
- how to understand the two sentences about "covariance" and "contravariance"?
- autocomplete for play 2.0 views paths in scala controllers in eclipse
- spark scala graphx: shortest path between two vertices
- scala play 2.1: accessing request and response bodies in a filter
- why yield can not work with while loop in scala
- getting command-line arguments in scala traits
- how to convert all column of dataframe to numeric spark scala?
- spark from_json no exception
- how to implement a list of fallback functions
- scala parser combinators: parsing in a stream
- contravariant method argument type
- conflicting fields in scala traits
- testing a page that is loaded after a redirect
- comparing type mapped values in slick queries
- using opengl with akka actors: guaranteeing a single thread is used for a specific actor
- where to find the details of scala's type inference?
- scala: change folder inside sbt
- what does "double right-arrow type" with no lhs mean in function argument
- scala make multiple option checks more concise
- valid type casting of both covariant and contravariant class at runtime in scala
- spark dataframe filtering: retain element belonging to a list
- invokedynamic and implicit methods
- play framework form "fold" method naming rationale
- help me understand this scala code: scalaz io monad
- what's the type of `=> string` in scala?
- scala play passing variable to view not working
- how to conditionally invoke a task in sbt?
- how to extract an element from an hlist with a specific (parameterized) type
- spark scala: convert arbitrary n columns into map
- what is the cause of this strange scala memory leak?
- json schema validator in scala
- error running spark in a scala repl - access denied org.apache.derby.security.systempermission( "engine", "usederbyinternals" )
- metastore_db doesn't get created with apache spark 2.2.1 in windows 7
- how to use given in dotty?
- why do these type arguments not conform to a type refinement?
- types in scala - lower bounds
- pattern matching on function parameters
- why eclipse shows error with play framework render method?
- circe decode to sealed trait extended by multiple case classes
- finding overlapping datetime intervals of elements in multiple lists
- spark get only columns that have one or more null values
- how to do custom partition in spark dataframe with saveastextfile
- sbt 0.13.1 offline
- set current project to default-6c6f02 (in build file:/home/user_name/videos/
- interoperability : sharing datasets of objects or row between java and scala, two ways. i put a scala dataset operation in the middle of java ones
- factory/caching strategy for sharing large immutable objects
- transitive implicits - is this possible in scala?
- scala way to generate prime factors of a number
- creating a testactorref results in nullpointerexception
- is there any workaround for scala bug si-7914 - returning an apply method from a scala macro?
- what is a good library for json serialization for scala 2.8.1 for use in eclipse [closed]
- spark scala equivalent for skew join hints
- join in spark dataframe (scala) based on not null values
- slick 3: how to drop and take on collections with some relations
- what happens when i use a global map variable in scala without broadcasting
- playframework fakerequest returns 400 error
- get classtag from within specialized class
- get a specific parameter from a json string using jsonpath in scala
- play json writes subclass gives ambiguous implicit values error
- how to add library dependency to classpath of build.scala?
- replacing bad performing workers in pool
- convert scala unit to java void
- how to obtain the average of an array-type column in scala-spark over all row entries per entry?
- how to add line number into each line?
- why my scala async test never completes when i do await.result?
- initialisation order throws null pointer on lazy val access
- intellij: exception in thread "main" java.lang.noclassdeffounderror: org/apache/spark/sql/types/datatype
- scala, playframework, mockito, executioncontext null
- play framework won't run inline javascript
- mock case class in scala : mockito
- how to add a new page in lift framework
- scala implicit conversion gotchas
- type bound in scala function complicates piping to method reference
- when i run the play framework example with sbt some error
- getting elements from slick hlist (or convert slick hlist into shapeless hlist)
- why do compile-time generative techniques for structural typing prevent separate compilation?
- closing an akka stream from inside a graphstage (akka 2.4.2)
- dynamic query parameters in slick (sorting)
- how to get object from play cache (scala)
- fsc recompiles every time
- how can i run datanucleus bytecode enhancer from sbt?
- default generic type on method in scala
- how to bind an enum to a playframework form?
- apache spark and remote method invocation
- how to rename files in hdfs from spark more efficiently?
- rich enumeration in scala
- how can i send http requests asynchronously while handling rate-limits?
- play! framework 2.0 scala - classcastexception: models.mymodel cannot be cast to models.mymodel
- in scala, how would i model a bank account in a stateless, functional manner?
- spark fails to write and then read json formatted data with nullable column
- kafka - why fresh groupid doesn't return all messages in topic when setting auto_offset_reset_config as "latest"
- scala parser combinators parsing xml?
- ambiguous reference to overloaded definition, from a java library
- ensure csv records in gatling using feeder
- does using val with hashtable in scala resolve concurrency issues?
- scala-lift project in eclipse scala ide errors
- how to detect javafx runtime jar in sbt
- scala play 2.1.0 - assets not appearing on heroku?
- error while importing sbt project , server access error, unresolved dependencies
- can reducebykey be used to change type and combine values - scala spark?
- scala repl unable to import packge
- scala for-comprehension returning an ordered map
- error while running sbt assembly : sbt deduplication error
- zipping zippers in anti-xml
- updating large data structures in idiomatic scala
- how should i schedule some simple delayed tasks in scala?
- magic partialfunction in scala
- how to convert a java treemap to a scala sortedmap?
- dynamic javascript using scala template
- back-reference in spark dataframe `regexp_replace`
- association rules with frequent pattern mining
- alternatives to scalding for hbase access from scala (or java)
- sending multi part form data in post method in play/scala
- isabelle and scala [closed]
- how to print source code of "if" condition in "then"
- scala replace an string with a list of key/values
- scala read continuous http stream
- how to deal with type name clashes in scala?
- determine whether type is singleton via reflection
- play 2.5 upgrade error: completionexception - there is no http context available from here
- why am i getting outofmemoryerror compilation error in scala?
- accounting for type parameters in a scala generic class 'equals' method... are manifests the only way?
- null pointer exception when overriding a parameterless method with a field
- calling stored procedures with slick
- generic way to check if range contains value in scala
- scala local variable inside primary constructor
- cake pattern: how to get all objects of type userservice provided by components
- count occurrences of each item in a scala parallel collection
- akka actor kill/restart behavior
- spark: parquet dataframe operations fail when forcing schema on read
- how to fix "error opening block streamchunkid" on external spark shuffle service
- sbt play cross build project setup: utest runner doesn't seperate client/server projects correctly
- find interval numbers with quantile function on a dataframe with spark using scala
- automatic case class mapping
- how can i ignore non-matching preceding text when using scala's parser combinators?
- is there anyway we can give two conditions in scalatest using shouldmatchers
- how to generically update a case class field using labelledgeneric?
- advantage of upper type bound over subtyping
- using db function (trim(leading '0' from column)) in slick
- playframework: override badrequest
- string category names with wisp scala plotting library
- akka http -error :substream source cannot be materialized more than once if payload size increased
- spark accumulator empty when used in udf
- how do you combine url fragments in java the same way browsers do?
- how to skip whitespace but use it as a token delimeter in a parser combinator
- how to read a csv file as map for key value pair
- mapvalues and explode in rdd
- correct use of term monoid
- scala parser combinators for language embedded in html or text (like php)
- spark streaming tab disappears after restarting from checkpoint
- spark expression rename the column list after aggregation
- find out if a number is a good number in scala
- get column names after columnsimilarties() spark scala
- scala: preference among overloaded methods with implicits, currying and defaults
- in dataframe.withcolumn, how can i check if the column's value is null as a condition for the second parameter?
- == and eq operators
- why doesn't the akka persisence query read journal retrieve my events?
- populating nested records with array in avro using a genericrecord
- what is the proper way to format a double in a play 2 template
- scala - get all months and days for a given year
- scala type mismatch issue when using import from different scope
- hbase scan timerange does not work in scala
- demystifying a function definition
- exporting scala project as jar from eclipse
- spray-client throwing "too many open files" exception when giving more concurrent requests
- function/method reference equality in scala
- filter partial duplicates with mapwithstate spark streaming
- comparing subsets of an rdd
- akka cluster setup with play framework
- how to convert nested json to map object in scala
- spark: classnotfoundexception when running hello world example in scala 2.11
- how to create scala swing wrapper classes with supermixin?
- declare generic method returning enumeration
- how to convert parquet data to case classes with spark?
- using shapeless records to combine arbitrary number of state-changing functions
- spark 1.6.1: task not serializable when evaluating a classifier on a dataframe
- handling extra newlines in csv files parsed with scala?
- implicit conversions on generic trait
- spark - create rdd of (label, features) pairs from csv file
- how can i prettyprint a json dataframe in spark with scala?
- dataframe to hdfs in spark scala
- @aspectj. pointcut for scala (and probably java) lambdas
- preparing data for lda in spark
- json coast to coast play framework : serializing joda datetime
- reactivemongo serializing a map into a bsondocument
- build js from sjsir `manually`
- the scala equivalent to go's math.nextafter
- tail recursiveness in scala methods with multiple parameter lists
- scala convert string to generic type
- how do i call a method in scala through javascript & ajax?
- scala: how can i split up a dataframe by row number?
- scala: pimp my library with overloads
- scala 2.8: how to initialize child class
- test two scala shapeless hlist types for equivalence via implicit
- setting number of spark tasks on a cassandra table scan
- compress output scalding / cascading tsvcompressed
- convert rdd of array(row) to rdd of row?
- shapeless mapping and subtype polymorphism with custom type bound
- sbt illegal dynamic reference in runmain
- cache slick dbio actions
- understanding cluster state update
- splitting a scala list into parts using a given list of part sizes.[partitioning]
- play framework twirl template comparing javascript element and scala variable
- access package private method in scala repl
- can spark and the scalanlp library breeze be used together?
- explode sparse features vector into separate columns
- how to get an actor reference (actorref) from actorflow?
- scala getting class type from string representation
- an akka/scala promise that requires two actors to complete
- scala : parameterize a type with one of its inner types
- how do i process xml file in spark?
- self-type annotation for class with higher kinded type
- how to solve a large sparse linear system from scala
- scala sbt file dependency from github repository
- compatibility issue with scala and spark for compiled jars
- java time to the normal format
- calculate table column using over table on server side
- java globbing pattern to match directory and file
- how to parse json with spray json that uses snake case (underscore notation) instead of camel case
- add scala class to datanucleus enhancer classpath
- avoid type conversion in scala
- restful http delete method in scala (play 2.0)
- how to handle bursts with actors?
- events that should be emitted by a ktable
- how to list the path of files inside hdfs directory and subdirectory?
- how to combine sequence of kleisli
- trait runtime type of type parameter through typetag when used with existential type in scala
- what is the difference between clojure clojure.core.reducers/fold and scala fold?
- mapvalues on innermost map of nested maps
- groovy equivalent for scala implicit parameters
- are scala immutable collections thread-safe?
- how do i convert array<floattype> to binarytype in spark dataframes using scala
- can't install nb-scala on netbeans 7.4rc1
- trait that extends a type argument
- why am i getting unresolved dependencies path: org.scala-sbt:compiler-bridge_2.12:1.0.3
- value ! is not a member of akka.routing.router
- reader monad - how does it conform to monad interface?
- spark build.sbt file versioning
- in scala 2.13, why is it sometimes impossible to summon type class explicitly?
- what is the (current) state of scala reflection capabilities, especially wrt annotations, as of version 2.11? [closed]
- play war deployment prevents tomcat from stopping
- how to use generics in scala
- akka streams / http: get original request from response
- sbt assembly fails due to different file contents found
- change language of text in template in play framework 2.1.1
- how to use crossvalidator to choose between different models
- play framework: async vs sync performance
- how to merge adjacent lines with scalaz-stream without losing the splitting line
- scala play salat aggregate example
- parameter list ("*") with lazy "by-name" parameters?
- spark dataframe except method issue
- play 2.4.x how use messages and not messagesapi i18n
- how to make a sbt task depend on a module defined in the same sbt project?
- is it possible to "explore" which objects are defined within an other object via reflection at runtime?
- capture console output of spark action node in oozie as variable across the oozie workflow
- scala fast generation of upper triangular matrix coordinates
- mongodb scala - query document for a specific field value
- how to use essentialaction
- how to generate a dataframe with random content and n rows?
- "too many arguments" error in scala superclass constructor but not in repl
- how to convert seq to json using circe inside a function - keep getting "implicit value not found" error
- how to create a neighbours map from a given nodes list in scala?
- compare 2 dates in a slick query seems hard
- relative time for views in play framework 2.1
- play 2.3 got incompatible errors for defaultreads
- scala iteratee to recursively process files and subdirectories
- scala spark streaming filestream
- abstract type member of a singleton object
- failure while fetching streamchunkid in spark
- spark accumulator throws "task not serializable" error
- why is each spark task not utilizing all allocated cores?
- how to create a dataset with 29 columns in spark
- spark scala: how to update each column of a dataframe in correspondence with each position of a vector
- jsonparseexception: unexpected character (':' (code 58))
- how to remove every nth element from the scala list?
- how (if at all) could rounding decimals improve performance?
- spark regexp: split column based on date
- using anorm rowparser
- is this the correct way of translating java interface into scala?
- understanding mixed context bounds of seq[anyval] and seq[string]
- gatling: is it possible to execute concurrent scenarios in a simulation depending on an if statement?
- how to apply implicit conversions between tuples?
- in scala how to implicitly invoke a type classes knowing only it's super type?
- use guice multibindings with assisted inject for the set members
- hlist to nested map
- bash script to insert code from one file at a specific location in another file?
- remove null from array columns in dataframe in scala with spark (1.6)
- how to optimize below spark code (scala)?
- spark streaming group by custom function
- how can find size of each row in apache spark sql dataframe and discrad the rows having size more than a threshold size in kilobyte
- org.apache.spark.sparkexception: task not serializable caused by: java.io.notserializableexception
- how to skip first and last line from a dat file and make it to dataframe using scala in databricks
- spark dataframe access of previous calculated row
- how to process future stream to create an instance of class with list property
- how can i create a different entity type using the original entity id in sorm?
- enumerating attached dvd drives in linux / java / scala
- spark mllib's lassowithsgd doesn't scale?
- license banners for scala when using ensime
- how to call a function which uses mtl and parallel?
- serialize table to nested json using apache spark
- select case class based on string in scala
- zeppelin with spark interpreter ignores imports declared outside of class/function definition
- scala play json api: can't implicitly convert jsarray to jsvaluewrapper
- join two tables based on different column type
- scala collection in jsf
- type l is in contravariant position in type a => either[l, b]
- getting latest based on column condition in spark scala is not working
- slick 3.0.0 aggregate queries
- deriving decoder instances of case classes with a single field
- writing custom serializer for json4s
- scala play action.async cant resolve ok as mvc.anycontent
- mutually recursive types in scala
- idiomatic way of getting a collection in reactivemongo
- spark with pureconfig - proper maven shade plugin configuration
- time-based thread-safe priority queue
- spark: proper way to remove the last element of an rdd[string]
- flatten only deepest level in scala spark dataframe
- play subproject can't import play-json classes on intellij
- scala's nothing vs partial unification
- using sbt for multimodule project?
- scope of cached rdds
- how to compare two data frames in scala
- connecting to mysql using slick 3.0 - no username, no password and bogus driver does not equal error
- play framework: chain actionsbuilder and actionrefiner
- how can i share code between integration tests and unit tests
- case classes matching in scala
- how does implicitly work in this example from scala in depth
- ternary operators in scala
- scala and lift and sessionvar that loses it contents
- discard all messages except the last one in a scala actor
- how to make `sbt test` to run tests in main project and all subprojects (or some selected set)
- how to colorize the standard output in scala with ansi codes
- lift authentication
- increase scala stack size during maven build
- deduplication error in build.sbt when building a fat jar using sbt assembly
- script engine giving error when evaluating scala script in java
- how to change sbt version for project
- playrunhook does not work in multi module projects
- what are the semantics of "proguardinjars" in sbt android-plugin?
- spark unit test fails with "exceptionininitializererror" with latest version of "json4s-jackson"
- "unable to find encoder for type stored in a dataset" and "not enough arguments for method map"?
- redirect stdout in another thread
- how to retrieve the auto incremented id using slick / plainsql?
- get fully qualified method name in scala macros
- scala java.nio.charset.unmappablecharacterexception: input length = 1
- scala how to write a get(name:string, type:class) for map
- aggregating analyses over sbt subprojects
- spark structured streaming kafka integration offset management
- can't find scalasig for class
- scala multiple inheritance: differentiate between iterable and partialfunction in method arguments
- if a variable is defined in a class extends a trait, how to use it in the trait?
- binary searching via bitmasking?
- how to properly apply hashpartitioner before a join in spark?
- scala: how do i use foldleft with a generic array?
- why doesn't this pass multiple html parameters to template
- unable to run custom sbt task from autoplugin's command
- jsonsyntaxexception gson: expected begin_object but was string
- how to increment cassandra counter column with phantom-dsl?
- how to extract a bz2 file in spark
- how to select the second smallest element from sorted list?
- how to repartition a dataframe in spark scala on a skewed column?
- parse get request to jsonarray in scala
- required: spray.httpx.marshalling.toresponsemarshallable error
- regex parse a list of comma separated number ranges, and capture them in individual groups
- how do you use `projectref` to reference a local project in sbt 1.x?
- how to execute (exec) external system commands in scala actor?
- android + scala + preinstalled scala libraries + disabled proguard throws classnotfoundexception
- extract specific columns form a text file to make a dataframe in scala
- are traits and interfaces binary compatible?
- apache scala/python spark 2.4.4: group data by year range to generate/analyze new feature
- parse json root in a column using spark-scala
- in reactivemongo 0.18.8, how can i perform an update of several documents, with different values, in a single command?
- why map function in scala not reading arrays
- create schema using struct in spark scala
- how do i make sure a function receives the same parameter type as the current object?
- covariant type parameter
- how to redirect request in play framework with scala?
- supertype for scalaquery query
- scala trait `this.type` in type parameter
- akka tracking when the actors finished
- scala-js "@jsglobalscope" error when migrating to scala-js 1.1.1
- scala/spark - how to get first elements of all sub-arrays
- compilation error with slick for table > 22 columns (using hlists)
- scala: mutable hashmap does not update inside for loop
- difference b/w method[int]() vs method() in scala?
- play-slick: is it possible to improve this design (pattern) ... and how to call it?
- how to identify null fields in a csv file?
- pyspark: how to update nested columns?
- use type parameter's type argument as field type in scala
- how to put a quote at beginning and end of an rdd data type?
- how to integrate akka streams kafka (reactive-kafka) into akka http application?
- simple microservice framework [closed]
- gson with scala causes for enumerations
- fetching esjsonrdd from elasticsearch with complex filtering in spark
- writing function parameters before function to be applied in scala
- equality and case classes
- how to calculate a rpn expression having two different data types in scala?
- using same type parameter as argument type and parameter type with match expression
- split json value from csv file and create new column based on json key in spark/scala
- scalaz validationnel is not working
- play/scala template block statement html output syntax with local variable
- kryo vs encoder vs java serialization in spark?
- play framework json fails with ordering
- document.write not working in html
- explain some scala code - beginner
- how to pass sql array values from java controller to scala template
- play framework - set url for assets
- how to format a column in spark dataframe
- scala partially applied type constructor inference
- scala standalone jar with a conf folder
- how can i map a case class with non-default field types to a table in slick?
- is there a shorthand for type variable 'm forsome { type m[o] <: upperbound[o] }` in scala?
- confusion about type refinement syntax
- scala regex multiline match with negative lookahead
- creting udf function with nonprimitive data type and using in spark-sql query: scala
- does @tailrec affect compiler optimizations?
- slick 2.0: delete multiple rows
- scala: get every combination of the last 24 months
- how can i redirect all unknown urls in lift framework?
- alpakka mongodb - specify type in mongosource
- scala: why foreach with a single argument function does not work with a zipped result
- why isn't my server requesting a client cert in play 2.6.x?
- parse json array response in scala\play
- what is the point of this monadic law?
- how to join 3 rdd's using spark scala
- scala - how to substring column names after the last dot?
- how to convert a list of maps into maps in scala?
- how to serialize sealed abstract class with json4s in scala?
- get the return value of reactivemongo findandupdate function
- unable to count words using reducebykey((v1,v2) => v1 + v2) scala function in spark
- spark get top n highest score results for each (item1, item2, score)
- avoid "path does not exist" in dir based spark load
- scala gson, cannot serialize option[blob]
- setting scala "platform" for netbeans 6.8 on ubuntu lucid lynx
- (un)marshall json with named root for ember data using scala case class on spray
- start generating auto increment column value from default in slick
- class java.lang.runtimeexception/scala class file does not contain scala annotation
- spark: access rdd inside another rdd
- spark - sort double values in an rdd and ignore nans
- scala spark type missmatch found unit, required rdd.rdd
- how to assign value into a breeze matrix in flatmap scala-spark?
- extract a specific json structure from a json string in a spark rdd - scala
- need help in understanding a scala code snippet
- a simple foldright type issue in scala
- deadbolt: show parts of template only for current logged user
- combining files
- task not serializable in scala
- scala subclass pattern match
- spark dataframe - replace tokens of a common string with column values for each row using scala
- scala getting a null pointer exception, how to fix it with minimal change [closed]
- compilation error using scala classes in java maven project
- how can i use mockitosugar to mock an object (singleton) method?
- replacing workers in balancingpool
- scala iterator and stream example. stream fails on reuse
- scala: adding attributes (odd and even rows) to xml table
- scala - replace 2nd and 4th occurence using regex
- how to provide helper methods to build a map
- best way to convert online csv to dataframe scala
- why @specialized annotation doesn't work for asinstanceof?
- histogram issue in spark scala
- select latest timestamp record after a window operation for every group in the data with spark scala
- iterate though columns of a spark dataframe and update specified values
- can't acess hadoop cluster master via spark [closed]
- is "they use sbt, an ide, and other tools as their interface to the compiler" contrary to "therefore they may not even have scalac installed"?
- create uuid with zeros
- a better way to test the value of an option?
- how does scala's equals method work in the case of a list?
- scala: abstract type pattern a is unchecked since it is eliminated by erasure
- int division in scala
- how to pattern match a class with multiple argument lists?
- sbt 0.12.4+ required on project import
- what happened between march 28th and march 29th, 1976 with the java.util.gregoriancalendar?
- why would i want .union over .unionall in spark for schemardds?
- how to check if list contains all the same values?
- clojure and scala interop
- what is the server side comment tag in scala templates in play framework?
- intellij idea and sbt syntax error
- what does pomonly() do in .sbt files?
- sbt: set specific scalacoptions options when compiling tests
- scala: how do i define an anonymous function with a variable argument list?
- dynamic sql parameters with anorm and scala play framework
- sbt: plugins.sbt in subproject is ignored?
- better version of "iterate over seq or if empty" in scala?
- how do i call a java method named the same as a scala keyword?
- scala implicit or explicit conversion from iterator to iterable
- what do multiple, consecutive fat arrows in method parameters mean in scala?
- restricting a trait to objects?
- slow scala assert
- why method overloading does not work inside another method?
- spark rdd equivalent to scala collections partition
- scala list of tuples to flat list
- adding haskell's monadic bind operator to scala
- is it correct behaviour that `lazy val` acts like `def` in case of exception?
- add scala sdk to all modules in intellij
- inner flow was completed without producing result elements for 1 outstanding elements
- no scala mutable list
- what is the difference between expressions and statements in scala
- static methods in interface require -target:jvm-1.8
- scala cats, traverse seq
- scala 'fromfile' weirdness?
- converting a scala iterable[tuple] to rdd
- scala classes in clojure
- type parameter of minby[b](f: ((a, b)) ⇒ b)(implicit cmp: ordering[b]): (a, b)
- spark 1.5.2 and slf4j staticloggerbinder
- what does the following warning mean: 'side-effecting nullary methods are discouraged'?
- how to prevent sbt to include test dependencies into the pom
- access maven repo over https in sbt
- slick 2.0.0-m3 table definition - clarification on the tag attribute
- scala factorial on large numbers sometimes crashes and sometimes doesn't
- context bounds with two generic parameters
- why i can't use a case object as a polymorphic type
- running sbt with -deprecation
- why does scala implicitly convert char to int?
- find out scala version used to make jar
- what are the implications of using def vs. val for constant values
- existential quantification over values
- using constructor where function expected
- scala import multiple packages
- scala infix type aliasing for >2 type parameters?
- is it good practice to make case classes sealed?
- i can not import filters in playframework 2.3.0
- jackson why do i need jsontypename annotation on subclasses
- what's the difference between lazylist and stream in scala?
- using scala reflection with java reflection
- scala insert into list at specific locations
- tired of non-semantic testing to make up for dynamic typing - suggestions?
- scala implicit parameters are marked as unused by the compiler
- why does akka fail with "illegalstateexception: cannot create children while terminating or terminated" when testing with scalatest?
- what are the guarantees for scala access qualifiers?
- can reduceleft be executed in parallel?
- type synonyms in java
- linking to sources from scaladoc?
- intellij: not a valid project id:
- parentheses matching in scala --- functional approach
- what exactly is a "null reply" in redis?
- scala package conflict
- lower type bound on scala field in mutable, covariant class?
- how to format a number/date in play 2.0 template?
- is it a rule that unapply will always return an option?
- why is some(1).getorelse(some(1)) not of type option[int]?
- scala map, ambiguity between tuple and function argument list
- how to read a file in play framework 2.2.1?
- scala missing parameter type for expanded function
- are there algebraic data types outside of sum and product?
- how can i skip a test in specs2 without matchers?
- efficiently serializing case classes
- add task to build.scala
- spark throws java.util.nosuchelementexception: key not found: 67
- scala type parameter bounds
- why the first type parameter is defined as contravariant in function1[-a, +b]?
- slick 3: how to implement repository pattern with transactions?
- polymorphism with scala type classes
- scala equivalent of python's "in" operator for sets?
- no implementation for play.api.db.slick.databaseconfigprovider was bound
- scala case class ignoring import in the spark shell
- scala+slick 3: inserting the result of one query into another table
- how to create a task that prints command line arguments?
- what is the difference between list.view and lazylist?
- what is '???' in scala?
- type of this in scala
- how do i add a no-arg constructor to a scala case class with a macro annotation?
- grouping items in an iterable by looking for a sentinel value (in scala)
- manipulating tuples
- pattern matching on parsers success in scala
- is the + in += on a map a prefix operator of =?
- why does scala try not catching java.lang.error?
- non-capturing wildcards in play framework routes
- how to turn off scala auto-completion of function with unit return type in intellij idea?
- is there a difference in scala between seq[t] and t*?
- can i yield or map one element into many in scala?
- summing a transformation of a list of numbers in scala
- java.lang.classnotfoundexception: scala.int when using akka 2.5.6 with sbt version 1.0.2
- scala + play framework + slick - json as model field
- how to insert value of uuid?
- how to use saved variable values outside of gatling scenario in scala file
- scala: how to escape a backtick in a literal?
- flash not found in products.scala
- (play 2.4) dependency injection in a trait?
- cannot load main class from jar file
- add column from one dataframe to another dataframe in scala
- why is scala's symbol not accepted as a column reference?
- differences when overriding inherited constructor fields?
- resolving ambiguous implicit conversions in scala
- how to implement interface serializable in scala?
- workaround for scala rdd not being covariant
- sbt: how to package an instance of a class as a jar?
- recursive call not in tail position
- everything's an object in scala
- how can i find the version of scala installed in eclipse ide?
- scala most elegant way to handle option and throw exception from scala map
- using specs2 and fakeapplication() to test database fails evolution inserts
- debug log in scala with no performance impact
- how can i interpret escape sequences in a multiline scala string?
- set logging level in akka
- scala type deferring
- scala: normal functions vs tupled functions?
- order of method call in scala trait mixin
- nullpointerexception when accessing overriden val in abstract constructor
- what is the correct way to implement trait with generics in scala?
- how to subtract two consecutive element in a list in scala?
- how to ignore single line comments in a parser-combinator
- implementing multilevel java interfaces in scala
- mark method call that it always returns not null result
- apache spark throws java.lang.illegalstateexception: unread block data
- parse.json of authenticated play request
- understanding threadedness of actors in scala
- scala, actors, what happens to unread inbox messages?
- create sortedmap from iterator in scala
- java 'reduceleft' signature / lower-bounded type arguments
- combining scala futures and collections in for comprehensions
- pass variable-length arguments to another function expecting the same?
- use cases of scala collection forwarders and proxies
- scala raw strings error in unicode escape
- calling java api from scala with null argument
- infer a type of a tree in a scala macro
- nosuchmethoderror writing avro object to hdfs using builder
- why functionn(0-22) productn(1-22) tuplen(1-22)?
- spark give null pointer exception during inputsplit for hbase
- jackson mapper with generic class in scala
- akka timeout when using spray client for multiple request
- what is the best way to use enrich-my-library in scala?
- what is a good way to handle default values with spray-json
- scala parser that sometimes skips whitespace and sometimes does not
- mocking generic scala method in mockito
- force repaint after button click
- what is store in scalaz
- what does keep in akka stream mean?
- passing a list of tuples as a parameter to a spark udf in scala
- catching matcherror at val initialisation with pattern matching in scala?
- scala method and values names
- scala: how to get the result of a future
- can't put partialfunction in scala class constructor
- add an extra lib folder dependency to build sbt in a lift project
- scala spark connect to remote cluster
- free ~> trampoline : recursive program crashes with outofmemoryerror
- pyspark transform method that's equivalent to the scala dataset#transform method
- in play 2.4 with di, how to use a service class in "secured" trait?
- simplifying option[boolean] expression in scala
- scala monoid[map[a,b]]
- where can i find the definition of scala.any and scala.anyref?
- efficient way to get a random element in scala?
- why do i get "the requested resource could not be found." when accessing simple spray route?
- illegal inheritance while extending trait with self type
- use play framework as a component
- does case class' copy-method use structural sharing?
- scala/java interoperability: how to deal with options containing int/long (primitive types)?
- sbt cannot append seq[object] to seq[moduleid]
- scala & play! & slick & postgresql auto increment
- scala variable binding when used with actors
- how to exclude library dependencies with explicit url from generated pom?
- convert match statement to partial function when foreach is used
- in compiled scala, what is the bitmap$0 field?
- spark difference or conflicts between setmaster in app conf and --master flag on sparksubmit
- spark window function with condition on current row
- when create two different spark pair rdd with same key set, will spark distribute partition with same key to the same machine?
- scala mutable option?
- java -> scala, performances on collections
- is there anything in java close to the parallel collections in scala?
- using vs code, how to get scala format to work and format my code?
- parboiled2 causes "missing or invalid dependency detected while loading class file 'prepender.class'"
- with scala, can i unapply a tuple and then run a map over it?
- smartly deal with option[t] in scala
- sbt: no implicit for append.value[seq[java.io.file], sbt.def.initialize[java.io.file]] found,
- where to find data inside a rdd in a eclipse spark scala debug session?
- why do i need semicolons after these imports?
- serviceconstructionexception when creating a cxf web service client (scala+java+wsdl2java)
- what does it mean to inline a constant?
- why is override sometimes required for an abstract method?
- mocking a method which returns an fs2.stream
- scala and python's pass
- intellij play2 and scala plugins are not compatible. makes intellij 12 no longer work as expected
- using the new reflection api, how to find the primary constructor of a class?
- when are package objects initialized?
- scala, casbah - how to convert list to mongodblist?
- the += operator on immutable set
- how do i use "implicit" as apply() parameter?
- scala 2.10, double.isnan, and boxing
- hard time using scala worksheets in intellij
- scala macros: how to read an annotation object
- how to transform failed future exceptions in scala?
- scala reserved word as json field name with json.writes[a] (play equivalent for @serializedname)
- what's up with position on scala macros?
- how to convert rdd[(string, string)] into rdd[array[string]]?
- missing parameter type
- class must either be declared abstract or implement converttolegacycheckingequalizer
- pattern matching zero-argument functions in scala: mystified by warning
- what does "!" mean in scala?
- "macro implementation reference has wrong shape" in the scala documentation examples
- dynamic elasticsearch mapping using elastic4s
- no implicit format for myclass available using json.format
- how to extract number from string column?
- indexof for 2d vector in scala
- why are these two slick queries not equivalent?
- assign a underscore to a variable. what is the underscore doing?
- sorm: how can i declare foreign keys?
- transforming one column into multiple ones in a spark dataframe
- scala: how to make a hash(trie)map from a map (via anorm in play)
- where should the meta-inf/services be in sbt
- builder library for scala and java
- getting error when trying haskell-style lazy evaluation in scala
- zipwithindex on apache flink
- difference between def and val in scala
- an object with unapply working in middle of a case statement
- how to get list of traits that were mixed in the specified class?
- how can i apply a macro annotation to a case class with a context bound?
- difference between tuple and list[any] in scala?
- dynamic table name override in slick table
- concatenate many future[seq] into one future[seq]
- scala : how to split words using multiple delimeters
- akka: painless actor error notifications
- pondering name of pattern seen in elm and if other similar cases
- would scala close the inputstream automatically?
- can you curry a function with varargs in scala?
- how to configure jooq-sbt-plugin
- how to use a type alias to define a type constructor
- why can anyval not be used in an isinstanceof check?
- caused by: java.sql.sqlexception: jdbc4 connection.isvalid() method not supported
- how to turn a known structured rdd to vector
- scala & spark: dataframe.write._ on windows
- play framework webservice tutorial scala [closed]
- `illegal cyclic reference` error in eclipse / scala plugin
- noclassdeffounderror while using scopt optionparser with spark
- indentation preserving string interpolation in scala
- sorting numeric string in spark dataset
- sbt hangs waiting for orphaned subprocess to complete
- need clarification for confusing http4s message type `response[f]` / `request[f]`
- spark, kryo serialization issue with protobuf field
- how to convert two consecutive elements from list to entries in map?
- stream#filter runs out of memory for 1,000,000 items
- how to typecheck a defdef
- spark reading compressed with special format
- convert hh:mm:ss in seconds
- play 2 - scala - forms validators and radio buttons
- multi-line string literals behave sane only in repl and worksheet
- how is scalaruntime.stringof(x) not failing when x.tostring fails?
- why does scalac need to box an `int` in a method expecting an `any`
- interesting behaviour with infix notation
- mutable multimap to immutable map
- threading `try`s through for-comprehension
- is there a nicer way of lifting a partialfunction in scala?
- deserializing json array into scala object
- dynamic languages - which one should i choose?
- from a list representation of a map, to a real map in scala
- convert scientific notation in string format to numeric in spark dataframe
- how to check a string against a symbols whitelist a functional way in scala?
- how do i use name as an applicative?
- is there a way to extract the item type from a manifest[list[x]] in scala?
- scala: workshop advice
- convert type pattern maching to type class
- why are nested java classes not importable from scala?
- scala implicit def do not work if the def name is tostring
- scala execution times in eclipse
- mock partially a class with scalamock
- sort unbound comparable in scala
- publishing messages to activemq using gatling
- passing current class as argument in scala
- my configuration of scala-maven-plugin with multi-module project doesn't let me do 'mvn compile' in a sub directory
- sbt accessing sub directories
- grouping adjacent elements in a list
- reading multiple csv files at different folder depths
- stream of running sums in scala
- how to reference outer object from inner class in scala
- scalatest test name without fixture?
- scalacheck can not cast boolean to prop instance
- how to write a lazy, variable argument version of "orelse"
- spark worker throws filenotfoundexception on temporary shuffle files
- scala method that needs either one of two implicit parameters
- start scala repl loop from code using sbt
- how to create udf from scala methods (to compute md5)?
- scala cats accumulating errors and successes with ior
- how to filter on an optional table produced by a left join in slick
- using types to model arbitrary constraints for compile-time checking
- scalacheck generate bst
- how to define <*> for option[list[_]] n scala
- multi-assignment based on collection
- scala method = trait { ... } meaning
- no implicit view available
- is "implictly" in scala now deprecated or at least not required anymore?
- why i have to return some in unapply method
- how to rate limit function call in a loop in scala
- java or scala. how to convert characters like \x22 into string
- scala create val for outer scope
- are scala's mouse events working? how?
- can a scala for loop modify variables outside its scope?
- creating a java object in scala
- higher-kinded types for multisets
- efficient way to fold list in scala, while avoiding allocations and vars
- how to write readable nested join queries with slick 3.0
- spring security - wss4jsecurityinterceptor - nullpointer
- set accept-language on phantomjsdriver in a play framework specification
- how to log all incoming messages from akka (java)
- playframework 2.0 define function in view template
- shapeless flatmap hlist with option yielding hlist
- scala: why asinstanceof can accept a type parameter but isinstanceof can not?
- how to exclude transitive dependency in sbt ( in context of assembly plugin )?
- rendering (streaming) html into pane
- why does scala list[int].contains accept option[int]?
- does for comprehension have something like "flatyield"?
- higher-order unification for type constructor inference
- appending tuple to a buffer in scala
- intersection and merge/join two maps in scala
- returning a path-dependent type
- why do i need scala compiler at runtime? (play2/salat with scalap dependency)
- class#getinterfaces() and class#getgenericinterfaces() return arrays of differing length
- how to use spark intersection() by key or filter() with two rdd?
- scala chaining functions with andthen type mismatch
- confuse about scala private field variable
- scala: how to invoke method with type parameter and manifest without knowing the type at compile time?
- generate scaladoc for root package
- how to mock an object in scala
- how to get ponter/reference semantics in scala
- partial/full-match value in one rdd to values in another rdd
- scala 2.9 can't run "hello world" sample on windows xp
- how to call scala from python?
- is there a way to call a function defined using `val` in scala with the whole curly brace block as an argument and not the final result of that block?
- why is the ++: operator in the scala language so strange?
- get wrappedarray row valule and convert it into string in scala
- generating arbitrary (legal) unicode character with scalacheck?
- converting rxjava to rxscala
- list of string implicit conversions like +=
- how to write a limit function in scala?
- scala properly defining a empty value for a abstract data type
- scala: different foldright implementations in list
- providing a jsonformat for a sequence of objects
- strange (?) for comprehension evaluation in scala
- how to create new instance of scala class with context bound via java reflection using only zero argument constructor?
- declaring and passing list in playframework scala templates
- how to get optional result in insert statements with doobie?
- convert tuple of unknown length to list in scala
- classes in worksheet in scala-ide cause error
- akka-streams with akka-cluster
- scala: extending inner class, without reference to outer class
- sublimerepl scala error
- how to use databse_url in play 2.0 (scala) for local connection to postgresql 9.1 & heroku?
- debugging clojure functions which are invoked in java code (eclipse)
- scala has smart compiler?
- unknown artifact sbtplugin super safe compiler with scala 2.12
- send message to parent actor in akka typed
- limit scalatest parallel execution thread number
- scala: tracing implicits selection and other code magics
- value todf is not a member of org.apache.spark.rdd.rdd
- why implicit parameters cannot be passed explicitly when they undergo an implicit conversion?
- scala 2.10.0 rc2 and optional parameters
- scala equivalent of java.util.scanner
- scala spark explode multiple columns pairs into rows
- why won't astyanax (java) recognize my @id annotated values in my scala case class parameter list?
- example of applicative composition in scala
- generically rewriting scala case classes
- scala right associative methods
- unresolved dependency org.mongodb#bson#2.5, bad organisation in sbt
- scala: implementing map with concrete types
- null as instance of a type parameter
- explain this type-mismatch in lazy evaluation
- is it possible to use json library without installing play?
- why is seq.newbuilder returning a listbuffer?
- why does from_json fail with "not found : value from_json"?
- why am i failing to combine enumerators in simpleresult body?
- scala: immutability and path-dependent type compatibility
- construct a json file in scala / play framework
- how to build a large distributed [sparse] matrix in apache spark 1.0?
- run scala dotty project using intellij ide
- spark 2.2 cannot write df to parquet
- scala: replace method at runtime
- requiring an argument extends a particular class and implements a particular interface
- partially applied functions with all arguments missing in scala
- scala - futures does not run
- why is scalatest mockitosugar deprecated?
- java tuple2 difference between using accessor method and calling the variable directly
- scala functions as object vs class
- reading multiple variables from an object wrapped in option[]
- console scala app doesn't stop when using reactive mongo driver
- declaring functions two ways. what is the distinction?
- why do i need an explicit evidence type / why does this scala type bound fail?
- retrieving largest indices of the bounded element in a multidimensional array in scala
- use spring @transactional in scala
- scalaz: how does `scalaz.syntax.applicative._` works its magic
- smallest repeating substring
- unit testing a controller in play 2.6
- how to run multi threaded jobs in apache spark using scala or python?
- scala string variable substitution
- extending a function1 in scala
- play 2.0 unexpected exception error: null
- how track json request sent to elasticsearch via elastic4s client?
- spark - exception in thread "main" java.sql.sqlexception: no suitable driver
- what does it mean when macro annotation cannot be used in the same compilation that defines it?
- generating permutations with scalacheck
- why can i use :: operator with seq in pattern matching but not elsewhere
- scala anorm postgresql error when storing byte array
- build error for scala slick 2.0.0
- type mismatch; found : long required: int
- adding joda-time as manageable dependency via sbt
- scala sortedmap : get all keys greater than a given key
- jackson annotations broken in scala from 1.9 to 2.1
- slick: is there a way to create a where clause with a regex?
- why scala needs duplicate constructor? (java.lang.nosuchmethodexception)
- conflicting cross-version suffixes in: org.scalamacros:quasiquotes
- how usable is non tail recursive recursion in scala?
- why is list[int] an instance of list[boolean]?
- how can you sign a post with oauth1.0a using scala play?
- scala, spring, and scalate
- prevent imports of unauthorized classes in scala
- string containing exact substring from substring list
- structured streaming exception: append output mode not supported for streaming aggregations
- cast objects to comparable type
- wrapping an immutable collection and maintaining thread-safety in scala?
- does scalala provide straightforward way of inserting vector into matrix?
- fpgrowth algorithm in spark
- filter from cassandra table by rdd values
- parsing more than 22 fields with spray json without nesting case classes
- conditional future in scala
- scala.js does not see a js *class* in the global scope, but sees a constructor function
- scala: combine either per the whole list with either per elements
- how to run spark scala application inside intellij
- scala, gremlin-scala, hlists, poly2, rightfold and a missing implicit prepend
- how to declare dependency on native .so library for tests?
- scala - looping over case class names to use as type parameters
- scala recursive for comprehension prepends empty list only once, why?
- how to setup play!2.5 with reactivemongo
- def keyword vs rocket ( => ) notation changes function behavior in scala?
- compiling scalafx for java 7u7 (that contains javafx 2.2) on os x
- scala and spark : how to go through an image?
- must include log4j, but it is causing errors in apache spark shell. how to avoid errors?
- akka stream batching
- validation with a sequence of by-name parameters in scala?
- reference is ambiguous with sparksql csv
- possible for ide's to resolve scala classes in java using maven?
- updating a 2d table of counts
- scala for comprehension efficiency?
- why does play's pushenumerator need to close() before the iterator will complete?
- java.lang.classnotfoundexception: org.apache.spark.sql.dataframe error when running scala mongodb connector
- how to transform dataset[(string, seq[string])] to dataset[(string, string)]?
- how to traverse array from both left to right and from right to left?
- scala: how to merge lists by the first element of the tuple
- when i use binding.scala, i got the error `each instructions must be inside a sde block`, how can i fix this?
- how to add a method to a scala enumeration object?
- is it possible to limit the number of errors the compiler shows?
- struggling with colon ':' in file names
- gatling scala extension fails with, could not find implicit value for evidence parameter
- keep deduced higher-kinded type in scala
- is checkpointing necessary in spark streaming
- how do you cross compile to scala.js with gradle
- representing a graph (adjacency list) with hashmap[int, vector[int]] (scala)?
- how to fix "static methods in interface require -target:jvm-1.8" in scala application?
- integrate securesocial with backend user services/storages?
- how to use junit's temporaryfolder in scala's specs2 tests?
- concise notation for single arg anonymous function (avoiding underscore) not working as expected
- recursive parsing based on level numbers
- bigtable error with sbt assembly fat jar (neither jetty alpn nor openssl are available)
- parsing a blank / whitespace with regexparsers
- how to run spark application assembled with spark 2.1 on cluster with spark 1.6?
- invoking anonymous closure
- how to serialize a map[customtype, string] to json
- encapsulation for mixin's members in scala
- foreach in method to return value
- why does typetag not work for return types?
- how do i recognize mouse clicks in scala?
- scala type constraint of companion type
- how to merge 2 enumerators in one, based on merge rule
- akka/java getcontext().become with parameter?
- interop between js and scala functions in scala.js
- importing avro schema in scala
- when are scala semicolons required
- apache spark - udf doesn't seem to work with spark-submit
- override java method with arg class<?> in scala
- scala: serialize case class to json , alternate names
- how to decode list of 0s and 1s by list of positions of 1?
- sbt: can't run interactively from mintty on cygwin
- labelled generic containing `$eq`
- get runtime type picked by implicit evidence
- fsm actor is not firing ontransition after goto to the same state
- com.typesafe.config.configexception$missing: no configuration setting found for key
- how to return a sequence generation for an id
- how do i populate a list of objects with new values
- why import implicit sqlcontext.implicits._ after initializing sqlcontext in a scala spark application
- sbt plugin -- execute custom task before compilation
- in apache spark, how to make an rdd/dataframe operation lazy?
- play framework route case insensitive
- getting a scala stacktrace
- could not find implicit value inside singleton object
- play 2: idiomatic approach to binding a form to list[model]
- why doesn't scala infer the type members of an inherited trait?
- mutable values in an object
- get value of nested maps in scala
- scala & databricks: getting a list of files
- configuring sbt project to include external main methods in "sbt run"
- negative lookbehind in a regex with an optional prefix
- iterator of repeated words in a file
- define function in scala, difference between functionname and functionname(_)
- scala external dsl -- multi line string literal
- storing case object with squeryl
- scala case classes and constructors
- java.lang.noclassdeffounderror: org/apache/logging/log4j/logger
- how to compose functions that return validation?
- scala type parameter inference fails for nothing
- how to match multiple files with names using textio.read in cloud dataflow
- anorm string interpolation not replacing variables
- how can i apply setting changes on onload hook in sbt?
- what is the supertype of all functions in scala?
- scala actor message definition
- mapn over composed apply
- pattern matching with generics
- unresolved dependency on org.scalaz.stream in play framework 2.4.3
- hbase-spark for spark 2
- dealing with a failed `future`
- passing type information to function in scala
- date_format conversion is adding 1 year to the border dates
- not able to read object values in freemarker template
- injectable factory with macwire
- how to use contains method on a 2d array in scala
- how do you actually run scalajs code in nodejs?
- exception in thread "main" java.lang.noclassdeffounderror: org/apache/spark/sql/catalyst/analysis/overridefunctionregistry
- using shapeless to extract data from case classes, modify it, and recreate the case class
- how to get sbt-assembly merge right?
- how to normalise zoneddatetime so that .equals() works?
- wildcard import, then hide particular implicit?
- custom scala repl issues
- spark job cassandra error
- scala - future list first completed with condition
- selection sort generic type implementation
- is there a name for this kind of lifting a function?
- inconsistent null equality check scala 2.11.7
- how to convert a dataframe of array of doubles to vectors?
- how to improve this function?
- option[io.databaker.env.envvalue], but type f is invariant in type
- enrich partialfunction with unapply functionality
- why is actor.receive a partial function?
- option-izing java getters
- how to update struct field spark/scala
- how can i import a scala class into another using gatling?
- scala's notion of "partial functions"' & the ".orelse" method in f#
- eclipse - how to turn off dynamic compilation/error checking
- scala: example use for early definition / early initializer / pre-initialized fields
- default value for mergelatest
- can implicits be used to disambiguate overloaded definition?