akka.stream.javadsl

Balance

object Balance

Fan-out the stream to several streams. Each upstream element is emitted to the first available downstream consumer. It will not shutdown until the subscriptions for at least two downstream subscribers have been established.

Note that a junction instance describes exactly one place (vertex) in the FlowGraph that multiple flows can be attached to; if you want to have multiple independent junctions within the same FlowGraph then you will have to create multiple such instances.

Emits when any of the outputs stops backpressuring; emits the element to the first available output

Backpressures when all of the outputs backpressure

Completes when upstream completes

Cancels when all downstreams cancel

Source
Graph.scala
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  1. final def !=(arg0: AnyRef): Boolean

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  8. def create[T](clazz: Class[T], outputCount: Int, waitForAllDownstreams: Boolean): Graph[UniformFanOutShape[T, T], Unit]

    Create a new Balance vertex with the specified input type.

    Create a new Balance vertex with the specified input type.

    waitForAllDownstreams

    if true it will not start emitting elements to downstream outputs until all of them have requested at least one element

  9. def create[T](clazz: Class[T], outputCount: Int): Graph[UniformFanOutShape[T, T], Unit]

    Create a new Balance vertex with the specified input type.

  10. def create[T](outputCount: Int): Graph[UniformFanOutShape[T, T], Unit]

    Create a new Balance vertex with the specified input type.

  11. def create[T](outputCount: Int, waitForAllDownstreams: Boolean): Graph[UniformFanOutShape[T, T], Unit]

    Create a new Balance vertex with the specified input type.

    Create a new Balance vertex with the specified input type.

    waitForAllDownstreams

    if true it will not start emitting elements to downstream outputs until all of them have requested at least one element

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