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#19267 add .viaAsync combinator

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This commit is contained in:
Roland Kuhn 2015-12-22 21:15:57 +01:00
parent 8a5a420108
commit a733096564
6 changed files with 188 additions and 3 deletions
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23
akka-stream/src/main/scala/akka/stream/javadsl/SubFlow.scala
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@ -82,6 +82,29 @@ class SubFlow[-In, +Out, +Mat](delegate: scaladsl.SubFlow[Out, Mat, scaladsl.Flo
def via[T, M](flow: Graph[FlowShape[Out, T], M]): SubFlow[In, T, Mat] =
new SubFlow(delegate.via(flow))
/**
* Transform this [[Flow]] by appending the given processing steps, ensuring
* that an `asyncBoundary` attribute is set around those steps.
*
* {{{
* +----------------------------+
* | Resulting Flow |
* | |
* | +------+ +------+ |
* | | | | | |
* In ~~> | this | ~Out~> | flow | ~~> T
* | | | | | |
* | +------+ +------+ |
* +----------------------------+
* }}}
*
* The materialized value of the combined [[Flow]] will be the materialized
* value of the current flow (ignoring the other Flow’s value), use
* [[Flow#viaMat viaMat]] if a different strategy is needed.
*/
def viaAsync[T, M](flow: Graph[FlowShape[Out, T], M]): SubFlow[In, T, Mat] =
new SubFlow(delegate.viaAsync(flow))
/**
* Connect this [[SubFlow]] to a [[Sink]], concatenating the processing steps of both.
* This means that all sub-flows that result from the previous sub-stream operator