- All Superinterfaces:
- Enclosing interface:
public static interface Stage.FindFirst extends StageA subscriber stage that emits the first element encountered.
When built, the
CompletionStagemust emit an
Optionalof the first element encountered. If no element is emitted before completion of the stream, it must emit an empty optional. Once the element has been emitted, the stream must be cancelled if not already complete.
If an error is emitted before the first element is encountered, the stream must redeem the completion stage with that error.
Nested Class Summary
Nested classes/interfaces inherited from interface org.eclipse.microprofile.reactive.streams.operators.spi.Stage
Stage.Cancel, Stage.Collect, Stage.Concat, Stage.Coupled, Stage.Distinct, Stage.DropWhile, Stage.Failed, Stage.Filter, Stage.FindFirst, Stage.FlatMap, Stage.FlatMapCompletionStage, Stage.FlatMapIterable, Stage.FromCompletionStage, Stage.FromCompletionStageNullable, Stage.Limit, Stage.Map, Stage.Of, Stage.OnComplete, Stage.OnError, Stage.OnErrorResume, Stage.OnErrorResumeWith, Stage.OnTerminate, Stage.Peek, Stage.ProcessorStage, Stage.PublisherStage, Stage.Skip, Stage.SubscriberStage, Stage.TakeWhile