Module io.helidon.common.reactive

Package io.helidon.common.reactive

Class MultiFlatMapProcessor<T,X>

java.lang.Object

io.helidon.common.reactive.BaseProcessor<T,X>

io.helidon.common.reactive.MultiFlatMapProcessor<T,X>

Type Parameters:

T - input item type

X - output item type

All Implemented Interfaces:

Multi<X>, Subscribable<X>, Flow.Processor<T,X>, Flow.Publisher<X>, Flow.Subscriber<T>, Flow.Subscription

public class MultiFlatMapProcessor<T,X>
extends BaseProcessor<T,X>
implements Multi<X>

Flatten the elements emitted by publishers produced by the mapper function to this stream.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MultiFlatMapProcessor()	Create new MultiFlatMapProcessor.
protected	MultiFlatMapProcessor(Function<T,Flow.Publisher<X>> mapper)	Create new MultiFlatMapProcessor with item to Iterable mapper.

Method Summary

Modifier and Type	Method	Description
void	cancel()
protected void	complete()	Complete by sending onComplete signal to down stream.
static <T,R> MultiFlatMapProcessor<T,R>	fromIterableMapper(Function<T,Iterable<R>> mapper)	Create new MultiFlatMapProcessor with item to Iterable mapper.
static <T,U> MultiFlatMapProcessor<T,U>	fromPublisherMapper(Function<T,Flow.Publisher<U>> mapper)	Create new MultiFlatMapProcessor with item to Flow.Publisher mapper.
protected MultiFlatMapProcessor<T,X>	mapper(Function<T,Flow.Publisher<X>> mapper)	Set mapper used for publisher creation.
void	request(long n)	request and cancel are not guaranteed to be thread-safe by the Publisher but this is not interacting with any state of this Processor - thread-safety is sub's concern - eventually the problem of the Publisher that provides the highest level Subscription.
protected void	submit(T item)	Invoke actual onNext signal to down stream.

Methods inherited from class io.helidon.common.reactive.BaseProcessor

complete, downstreamSubscribe, getError, getSubscriber, getSubscription, next, onComplete, onError, onNext, onSubscribe, setError, subscribe

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.concurrent.Flow.Publisher

subscribe

Methods inherited from interface io.helidon.common.reactive.Multi

collect, collect, collectList, collectStream, defaultIfEmpty, distinct, dropWhile, filter, first, flatMap, flatMap, flatMapIterable, flatMapIterable, forEach, limit, map, onComplete, onError, onErrorResume, onErrorResumeWith, onTerminate, peek, reduce, reduce, skip, switchIfEmpty, takeUntil, takeWhile

Methods inherited from interface io.helidon.common.reactive.Subscribable

subscribe, subscribe, subscribe, subscribe

Constructor Detail

MultiFlatMapProcessor

protected MultiFlatMapProcessor()

Create new MultiFlatMapProcessor.

MultiFlatMapProcessor

protected MultiFlatMapProcessor(Function<T,Flow.Publisher<X>> mapper)

Create new MultiFlatMapProcessor with item to Iterable mapper.

Parameters:

mapper - to provide iterable for every item from upstream

Method Detail

fromIterableMapper

public static <T,R> MultiFlatMapProcessor<T,R> fromIterableMapper(Function<T,Iterable<R>> mapper)

Create new MultiFlatMapProcessor with item to Iterable mapper.

Type Parameters:

T - input item type

R - output item type

Parameters:

mapper - to provide iterable for every item from upstream

Returns:

MultiFlatMapProcessor

fromPublisherMapper

public static <T,U> MultiFlatMapProcessor<T,U> fromPublisherMapper(Function<T,Flow.Publisher<U>> mapper)

Create new MultiFlatMapProcessor with item to Flow.Publisher mapper.

Type Parameters:

T - input item type

U - output item type

Parameters:

mapper - to provide iterable for every item from upstream

Returns:

MultiFlatMapProcessor

mapper

protected MultiFlatMapProcessor<T,X> mapper(Function<T,Flow.Publisher<X>> mapper)

Set mapper used for publisher creation.

Parameters:

mapper - function used for publisher creation

Returns:

MultiFlatMapProcessor

submit

protected void submit(T item)

Description copied from class: BaseProcessor

Invoke actual onNext signal to down stream.

Specified by:

submit in class BaseProcessor<T,X>

Parameters:

item - to be sent down stream

complete

protected void complete()

Description copied from class: BaseProcessor

Complete by sending onComplete signal to down stream.

Overrides:

complete in class BaseProcessor<T,X>

request

public void request(long n)

Description copied from class: BaseProcessor

request and cancel are not guaranteed to be thread-safe by the Publisher but this is not interacting with any state of this Processor - thread-safety is sub's concern - eventually the problem of the Publisher that provides the highest level Subscription.

Specified by:

request in interface Flow.Subscription

Overrides:

request in class BaseProcessor<T,X>

cancel

public void cancel()

Specified by:

cancel in interface Flow.Subscription

Overrides:

cancel in class BaseProcessor<T,X>