Interface Stage.OnErrorResume
- All Superinterfaces:
Stage
- Enclosing interface:
- 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's onError
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
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
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Method Details
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getFunction
The error handler.- Returns:
- the error handler.
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