Module io.helidon.common.reactive

Package io.helidon.common.reactive

Common reactive library for Helidon projects.

See Also:

Flow, ReactiveStreamsAdapter, OutputStreamPublisher, SubmissionPublisher

Interface Summary

Interface	Description
Collector<T,U>	A collector accumulates the items provided when Collector.collect(java.lang.Object) is invoked and makes them available in a single container object with Collector.value().
Multi<T>	Multiple items publisher facility.
OptionalCompletionStage<T>	A completion stage that allows processing of cases when the element is present and when not.
RetrySchema	Defines delay for next read/poll operation in a polling publisher.
Single<T>	Single item publisher utility.
Subscribable<T>	Decorated publisher that allows subscribing to individual events with java functions.

Class Summary

Class	Description
BufferedProcessor<T,U>	Processor with back-pressure buffer.
ConcatPublisher<T>	Concat streams to one.
Flows	Utilities for Flow API.
MappingProcessor<SOURCE,TARGET>	A Flow.Processor that only maps the source type to target type using a mapping function.
MultiCoupledProcessor<T,R>	Coupled processor sends items received to the passed in subscriber, and emits items received from the passed in publisher.
MultiDistinctProcessor<T>	Filter out all duplicate items.
MultiDropWhileProcessor<T>	Drop the longest prefix of elements from this stream that satisfy the given predicate.
MultiFilterProcessor<T>	Processor filtering stream with supplied predicate.
MultiFlatMapProcessor<T>	Flatten the elements emitted by publishers produced by the mapper function to this stream.
MultiLimitProcessor<T>	Let pass only specified number of items.
MultiMapProcessor<T,U>	Processor of Flow.Publisher to Single that publishes and maps each received item.
MultiOnErrorResumeProcessor<T>	Resume stream from supplied publisher if onError signal is intercepted.
MultiPeekProcessor<T>	Invoke supplied consumer for every item in the stream.
MultiSkipProcessor<T>	Skip first n items, all the others are emitted.
MultiTakeWhileProcessor<T>	Take the longest prefix of elements from this stream that satisfy the given predicate.
MultiTappedProcessor<R>	Processor executing provided functions on passing signals onNext, onError, onComplete, onCancel.
OriginThreadPublisher<T,U>	The OriginThreadPublisher's nature is to always run Flow.Subscriber.onNext(Object) on the very same thread as OriginThreadPublisher.submit(Object).
OutputStreamPublisher	Output stream that Flow.Publisher publishes any data written to it as ByteBuffer events.
ReactiveStreamsAdapter	Deprecated. This class will be removed in the next major release.
RequestedCounter	Requested event counter.
SingleSubscriberHolder<T>	A subscriber container that accepts only a single, one-time subscriber registration.
StreamValidationUtils	Helper methods for stream validation.
SubmissionPublisher<T>	Deprecated. This class will be removed in the next major release.
UnboundedSemaphore	The UnboundedSemaphore is designed to fit Reactive Streams use-case; that is to be able to allow an unbounded number of acquires once a cumulative release count reaches Long.MAX_VALUE.

Exception Summary

Exception	Description
BackPressureOverflowException	Raised when back-pressure buffer overflows.