FunctionConverters
This object provides extension methods that convert between Scala and Java function types.
When writing Java code, use the explicit conversion methods defined in javaapi.FunctionConverters instead.
Using the .asJava
extension method on a Scala function produces the most specific possible
Java function type:
scala> import scala.jdk.FunctionConverters._
scala> val f = (x: Int) => x + 1
scala> val jf1 = f.asJava
jf1: java.util.function.IntUnaryOperator = ...
More generic Java function types can be created using the corresponding asJavaXYZ
extension
method:
scala> val jf2 = f.asJavaFunction
jf2: java.util.function.Function[Int,Int] = ...
scala> val jf3 = f.asJavaUnaryOperator
jf3: java.util.function.UnaryOperator[Int] = ...
Converting a Java function to Scala is done using the asScala
extension method:
scala> List(1,2,3).map(jf2.asScala)
res1: List[Int] = List(2, 3, 4)
- Source
- FunctionConverters.scala
Implicits
Inherited implicits
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority3FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaBinaryOperator[T, A1, A2](sf: (T, A1) => A2)(evA1: A1 =:= T, evA2: A2 =:= T): RichFunction2AsBinaryOperator[T]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleBinaryOperator[A0, A1](sf: (A0, A1) => Double)(evA0: A0 =:= Double, evA1: A1 =:= Double): RichFunction2AsDoubleBinaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleConsumer[A0](sf: A0 => Unit)(evA0: A0 =:= Double): RichFunction1AsDoubleConsumer
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleFunction[A0, R](sf: A0 => R)(evA0: A0 =:= Double): RichFunction1AsDoubleFunction[R]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoublePredicate[A0](sf: A0 => Boolean)(evA0: A0 =:= Double): RichFunction1AsDoublePredicate
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleToIntFunction[A0](sf: A0 => Int)(evA0: A0 =:= Double): RichFunction1AsDoubleToIntFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleToLongFunction[A0](sf: A0 => Long)(evA0: A0 =:= Double): RichFunction1AsDoubleToLongFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaDoubleUnaryOperator[A0](sf: A0 => Double)(evA0: A0 =:= Double): RichFunction1AsDoubleUnaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntBinaryOperator[A0, A1](sf: (A0, A1) => Int)(evA0: A0 =:= Int, evA1: A1 =:= Int): RichFunction2AsIntBinaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntConsumer[A0](sf: A0 => Unit)(evA0: A0 =:= Int): RichFunction1AsIntConsumer
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntFunction[A0, R](sf: A0 => R)(evA0: A0 =:= Int): RichFunction1AsIntFunction[R]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntPredicate[A0](sf: A0 => Boolean)(evA0: A0 =:= Int): RichFunction1AsIntPredicate
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntToDoubleFunction[A0](sf: A0 => Double)(evA0: A0 =:= Int): RichFunction1AsIntToDoubleFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntToLongFunction[A0](sf: A0 => Long)(evA0: A0 =:= Int): RichFunction1AsIntToLongFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaIntUnaryOperator[A0](sf: A0 => Int)(evA0: A0 =:= Int): RichFunction1AsIntUnaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongBinaryOperator[A0, A1](sf: (A0, A1) => Long)(evA0: A0 =:= Long, evA1: A1 =:= Long): RichFunction2AsLongBinaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongConsumer[A0](sf: A0 => Unit)(evA0: A0 =:= Long): RichFunction1AsLongConsumer
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongFunction[A0, R](sf: A0 => R)(evA0: A0 =:= Long): RichFunction1AsLongFunction[R]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongPredicate[A0](sf: A0 => Boolean)(evA0: A0 =:= Long): RichFunction1AsLongPredicate
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongToDoubleFunction[A0](sf: A0 => Double)(evA0: A0 =:= Long): RichFunction1AsLongToDoubleFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongToIntFunction[A0](sf: A0 => Int)(evA0: A0 =:= Long): RichFunction1AsLongToIntFunction
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaLongUnaryOperator[A0](sf: A0 => Long)(evA0: A0 =:= Long): RichFunction1AsLongUnaryOperator
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaObjDoubleConsumer[T, A1](sf: (T, A1) => Unit)(evA1: A1 =:= Double): RichFunction2AsObjDoubleConsumer[T]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaObjIntConsumer[T, A1](sf: (T, A1) => Unit)(evA1: A1 =:= Int): RichFunction2AsObjIntConsumer[T]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaObjLongConsumer[T, A1](sf: (T, A1) => Unit)(evA1: A1 =:= Long): RichFunction2AsObjLongConsumer[T]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaToDoubleBiFunction[T, U](sf: (T, U) => Double): RichFunction2AsToDoubleBiFunction[T, U]
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaToIntBiFunction[T, U](sf: (T, U) => Int): RichFunction2AsToIntBiFunction[T, U]
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaToLongBiFunction[T, U](sf: (T, U) => Long): RichFunction2AsToLongBiFunction[T, U]
- Inherited from
- Priority2FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsJavaUnaryOperator[T, A1](sf: T => A1)(evA1: A1 =:= T): RichFunction1AsUnaryOperator[T]
- Inherited from
- Priority1FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromBiConsumer[T, U](jf: BiConsumer[T, U]): RichBiConsumerAsFunction2[T, U]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromBiFunction[T, U, R](jf: BiFunction[T, U, R]): RichBiFunctionAsFunction2[T, U, R]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromBiPredicate[T, U](jf: BiPredicate[T, U]): RichBiPredicateAsFunction2[T, U]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromBinaryOperator[T](jf: BinaryOperator[T]): RichBinaryOperatorAsFunction2[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromDoubleBinaryOperator(jf: DoubleBinaryOperator): RichDoubleBinaryOperatorAsFunction2
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromDoubleFunction[R](jf: DoubleFunction[R]): RichDoubleFunctionAsFunction1[R]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromDoubleToIntFunction(jf: DoubleToIntFunction): RichDoubleToIntFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromDoubleToLongFunction(jf: DoubleToLongFunction): RichDoubleToLongFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromDoubleUnaryOperator(jf: DoubleUnaryOperator): RichDoubleUnaryOperatorAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromIntBinaryOperator(jf: IntBinaryOperator): RichIntBinaryOperatorAsFunction2
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromIntToDoubleFunction(jf: IntToDoubleFunction): RichIntToDoubleFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromIntToLongFunction(jf: IntToLongFunction): RichIntToLongFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromIntUnaryOperator(jf: IntUnaryOperator): RichIntUnaryOperatorAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromLongBinaryOperator(jf: LongBinaryOperator): RichLongBinaryOperatorAsFunction2
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromLongToDoubleFunction(jf: LongToDoubleFunction): RichLongToDoubleFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromLongToIntFunction(jf: LongToIntFunction): RichLongToIntFunctionAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromLongUnaryOperator(jf: LongUnaryOperator): RichLongUnaryOperatorAsFunction1
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromObjDoubleConsumer[T](jf: ObjDoubleConsumer[T]): RichObjDoubleConsumerAsFunction2[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromObjIntConsumer[T](jf: ObjIntConsumer[T]): RichObjIntConsumerAsFunction2[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromObjLongConsumer[T](jf: ObjLongConsumer[T]): RichObjLongConsumerAsFunction2[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToDoubleBiFunction[T, U](jf: ToDoubleBiFunction[T, U]): RichToDoubleBiFunctionAsFunction2[T, U]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToDoubleFunction[T](jf: ToDoubleFunction[T]): RichToDoubleFunctionAsFunction1[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToIntBiFunction[T, U](jf: ToIntBiFunction[T, U]): RichToIntBiFunctionAsFunction2[T, U]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToIntFunction[T](jf: ToIntFunction[T]): RichToIntFunctionAsFunction1[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToLongBiFunction[T, U](jf: ToLongBiFunction[T, U]): RichToLongBiFunctionAsFunction2[T, U]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromToLongFunction[T](jf: ToLongFunction[T]): RichToLongFunctionAsFunction1[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala
implicit def enrichAsScalaFromUnaryOperator[T](jf: UnaryOperator[T]): RichUnaryOperatorAsFunction1[T]
- Inherited from
- Priority0FunctionExtensions
- Source
- FunctionExtensions.scala