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pekko/akka-docs/src/main/paradox/stream/operators/Sink/queue.md
Ignasi Marimon-Clos 7702bce0d0
A few more apidoc directives (#28995)
2020-04-30 08:59:22 +02:00

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Sink.queue

Materialize a SinkQueue that can be pulled to trigger demand through the sink.

@refSink operators

Signature

@apidocSink.queue { scala="#queueT:akka.stream.scaladsl.Sink[T,akka.stream.scaladsl.SinkQueueWithCancel[T]]" java="#queue(int)" }

Description

Materialize a SinkQueue that can be pulled to trigger demand through the sink. The queue contains a buffer in case stream emitting elements faster than queue pulling them.

Reactive Streams semantics

@@@div { .callout }

cancels when SinkQueue.cancel is called

backpressures when buffer has some space

@@@