Package org.apache.pekko.stream.javadsl

Class WireTap

  • public class WireTap
extends java.lang.Object
    Fan-out the stream to two output streams - a 'main' and a 'tap' one. Each incoming element is emitted to the 'main' output; elements are also emitted to the 'tap' output if there is demand; otherwise they are dropped.

    '''Emits when''' element is available and demand exists from the 'main' output; the element will also be sent to the 'tap' output if there is demand.

    '''Backpressures when''' the 'main' output backpressures

    '''Completes when''' upstream completes

    '''Cancels when''' the 'main' output cancels

    • Constructor Summary

      Constructors 
      Constructor Description
      WireTap()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <T> Graph<FanOutShape2<T,​T,​T>,​NotUsed> create()
      Create a new WireTap operator with the specified output type.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • WireTap

        public WireTap()

    • Method Detail

      • create

        public static <T> Graph<FanOutShape2<T,​T,​T>,​NotUsed> create()
        Create a new WireTap operator with the specified output type.