t

akka.stream.javadsl

SourceQueue

trait SourceQueue[T] extends AnyRef

This trait allows to have a queue as a data source for some stream.

Source
Queue.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
SourceQueueWithComplete
Type Hierarchy
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Inherited
  1. SourceQueue
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def offer(elem: T): [QueueOfferResult]

    Offers an element to a stream and returns a CompletionStage that: - completes with Enqueued if the element is consumed by a stream - completes with Dropped when the stream dropped the offered element - completes with QueueClosed when the stream is completed whilst the CompletionStage is active - completes with Failure(f) in case of failure to enqueue element from upstream - fails when stream is already completed

    Offers an element to a stream and returns a CompletionStage that: - completes with Enqueued if the element is consumed by a stream - completes with Dropped when the stream dropped the offered element - completes with QueueClosed when the stream is completed whilst the CompletionStage is active - completes with Failure(f) in case of failure to enqueue element from upstream - fails when stream is already completed

    Additionally when using the backpressure overflowStrategy: - If the buffer is full the CompletionStage won't be completed until there is space in the buffer - Calling offer before the CompletionStage is completed, in this case it will return a failed CompletionStage

    elem

    element to send to a stream

  2. abstract def watchCompletion(): [Done]

    Returns a CompletionStage that will be completed if this operator completes, or will be failed when the stream is failed.