c

akka.stream.stage

AbstractOutHandler

abstract class AbstractOutHandler extends OutHandler

Java API: callbacks for an output port where termination logic is predefined (completing when downstream cancels).

Source
GraphStage.scala
Linear Supertypes
OutHandler, AnyRef, Any
Type Hierarchy
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Inherited
  1. AbstractOutHandler
  2. OutHandler
  3. AnyRef
  4. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new AbstractOutHandler()

Abstract Value Members

  1. abstract def onPull(): Unit

    Called when the output port has received a pull, and therefore ready to emit an element, i.e.

    Called when the output port has received a pull, and therefore ready to emit an element, i.e. GraphStageLogic.push is now allowed to be called on this port.

    Definition Classes
    OutHandler
    Annotations
    @throws(classOf[Exception])

Concrete Value Members

  1. def onDownstreamFinish(cause: Throwable): Unit

    Called when the output port will no longer accept any new elements.

    Called when the output port will no longer accept any new elements. After this callback no other callbacks will be called for this port.

    Definition Classes
    OutHandler
    Annotations
    @throws(classOf[Exception])

Deprecated Value Members

  1. def onDownstreamFinish(): Unit

    Called when the output port will no longer accept any new elements.

    Called when the output port will no longer accept any new elements. After this callback no other callbacks will be called for this port.

    Definition Classes
    OutHandler
    Annotations
    @throws(classOf[Exception]) @deprecatedOverriding() @deprecated
    Deprecated

    (Since version 2.6.0) Call onDownstreamFinish with a cancellation cause.