abstract class Mapper[-T, +R] extends AbstractFunction1[T, R]
Callback for the Future.map and Future.flatMap operations that will be invoked if the Future that this callback is registered on becomes completed with a success. This callback is the equivalent of an akka.japi.Function
Override "apply" normally, or "checkedApply" if you need to throw checked exceptions.
SAM (Single Abstract Method) class
Java API
- Source
- Future.scala
- Alphabetic
- By Inheritance
- Mapper
- AbstractFunction1
- Function1
- AnyRef
- Any
- by UnliftOps
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
- Hide All
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- Public
- Protected
Instance Constructors
- new Mapper()
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- def ->[B](y: B): (Mapper[T, R], B)
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def andThen[A](g: (R) => A): (T) => A
- Definition Classes
- Function1
- Annotations
- @unspecialized()
- def apply(parameter: T): R
Override this method to perform the map operation, by default delegates to "checkedApply" which by default throws an UnsupportedOperationException.
Override this method to perform the map operation, by default delegates to "checkedApply" which by default throws an UnsupportedOperationException.
- Definition Classes
- Mapper → Function1
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def checkedApply(parameter: T): R
Override this method if you need to throw checked exceptions
Override this method if you need to throw checked exceptions
Throws UnsupportedOperation by default.
- Annotations
- @throws(classOf[Throwable])
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
- def compose[A](g: (A) => T): (A) => R
- Definition Classes
- Function1
- Annotations
- @unspecialized()
- def ensuring(cond: (Mapper[T, R]) => Boolean, msg: => Any): Mapper[T, R]
- def ensuring(cond: (Mapper[T, R]) => Boolean): Mapper[T, R]
- def ensuring(cond: Boolean, msg: => Any): Mapper[T, R]
- def ensuring(cond: Boolean): Mapper[T, R]
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @HotSpotIntrinsicCandidate() @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @HotSpotIntrinsicCandidate() @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @HotSpotIntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @HotSpotIntrinsicCandidate() @native()
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- Function1 → AnyRef → Any
- def unlift: PartialFunction[T, B]
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Mapper[T, R] toStringFormat[Mapper[T, R]] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)
instead ofvalue.formatted(formatString)
, or use thef""
string interpolator. In Java 15 and later,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (Mapper[T, R], B)
- Implicit
- This member is added by an implicit conversion from Mapper[T, R] toArrowAssoc[Mapper[T, R]] performed by method ArrowAssoc in scala.Predef.This conversion will take place only if R is a subclass of Option[Nothing] (R <: Option[Nothing]).
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
->
instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.