Interface Stage.OnErrorResume
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- All Superinterfaces:
Stage
- Enclosing interface:
- Stage
public static interface Stage.OnErrorResume extends Stage
A stage to handle errors from upstream. It builds a stream containing all the elements from upstream. Additionally, in the case of failure, rather than propagating the error downstream, it invokes the given function method emits the result as the final event of the stream, terminating the stream after that.By default, when a stream encounters an error that prevents it from emitting the expected item to its subscriber, the stream (publisher) invokes its subscriber's
onError
method, and then terminates without invoking any more of its subscriber's methods. This operator changes this behavior. If the current stream encounters an error, instead of invoking its subscriber'sonError
method, it will instead emit the return value of the passed function. This operator prevents errors from propagating and allows supplying fallback data should errors be encountered.Any
RuntimeException
thrown by the function must be propagated downstream as an error, replacing the exception that the function was handling.
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Nested Class Summary
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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
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.util.function.Function<java.lang.Throwable,?>
getFunction()
The error handler.
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