Package io.smallrye.mutiny.operators.multi

Class MultiOperatorProcessor<I,O>

java.lang.Object

io.smallrye.mutiny.operators.multi.MultiOperatorProcessor<I,O>

All Implemented Interfaces:

ContextSupport, MultiSubscriber<I>, org.reactivestreams.Subscriber<I>, org.reactivestreams.Subscription

Direct Known Subclasses:

MultiFailOnItemTimeout.MultiFailOnItemTimeoutProcessor, MultiGroupByOp.MultiGroupByProcessor, MultiIgnoreOp.MultiIgnoreProcessor, MultiMapOp.MapProcessor, MultiReferenceCountSubscriber, MultiSelectFirstUntilOtherOp.TakeUntilMainProcessor

public abstract class MultiOperatorProcessor<I,O>
extends java.lang.Object
implements MultiSubscriber<I>, org.reactivestreams.Subscription, ContextSupport

Field Summary

Fields

Modifier and Type	Field	Description
protected MultiSubscriber<? super O>	downstream
protected org.reactivestreams.Subscription	upstream

Constructor Summary

Constructors

Constructor	Description
MultiOperatorProcessor(MultiSubscriber<? super O> downstream)

Method Summary

Modifier and Type	Method	Description
void	cancel()
protected void	cancelUpstream()
protected boolean	compareAndSetUpstreamSubscription(org.reactivestreams.Subscription expectedValue, org.reactivestreams.Subscription newValue)
protected boolean	compareAndSwapDownstreamCancellationRequest()
Context	context()	Provide a context.
protected org.reactivestreams.Subscription	getAndSetUpstreamSubscription(org.reactivestreams.Subscription newValue)
protected org.reactivestreams.Subscription	getUpstreamSubscription()
protected boolean	isCancelled()
protected boolean	isDone()
void	onCompletion()	Method called when the upstream emits a completion terminal event.
void	onFailure(java.lang.Throwable throwable)	Method called when the upstream emits a failure terminal event.
void	onItem(I item)	Method called when the upstream emits an item event, in response to to requests to Subscription.request(long).
void	onSubscribe(org.reactivestreams.Subscription subscription)
void	request(long numberOfItems)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.smallrye.mutiny.subscription.MultiSubscriber

onComplete, onError, onNext

Field Detail

downstream

protected volatile MultiSubscriber<? super O> downstream

upstream

protected volatile org.reactivestreams.Subscription upstream

Constructor Detail

MultiOperatorProcessor

public MultiOperatorProcessor(MultiSubscriber<? super O> downstream)

Method Detail

getUpstreamSubscription

protected org.reactivestreams.Subscription getUpstreamSubscription()

compareAndSetUpstreamSubscription

protected boolean compareAndSetUpstreamSubscription(org.reactivestreams.Subscription expectedValue,
                                                    org.reactivestreams.Subscription newValue)

getAndSetUpstreamSubscription

protected org.reactivestreams.Subscription getAndSetUpstreamSubscription(org.reactivestreams.Subscription newValue)

isDone

protected boolean isDone()

isCancelled

protected boolean isCancelled()

context

public Context context()

Description copied from interface: ContextSupport

Provide a context.

Since calls to this method shall only be triggered when a Mutiny pipeline uses a withContext operator, there is no need in general for caching the context value in a field of the implementing class. Exceptions include operators that have cross-subscriber semantics such as memoizers or broadcasters.

This method is expected to be called once per withContext operator.

Specified by:

context in interface ContextSupport

Returns:

the context, must not be null.

onSubscribe

public void onSubscribe(org.reactivestreams.Subscription subscription)

Specified by:

onSubscribe in interface org.reactivestreams.Subscriber<I>

onFailure

public void onFailure(java.lang.Throwable throwable)

Description copied from interface: MultiSubscriber

Method called when the upstream emits a failure terminal event.

No further events will be sent even if Subscription.request(long) is invoked again.

Specified by:

onFailure in interface MultiSubscriber<I>

Parameters:

throwable - the failure, must not be null.

onItem

public void onItem(I item)

Description copied from interface: MultiSubscriber

Method called when the upstream emits an item event, in response to to requests to Subscription.request(long).

Specified by:

onItem in interface MultiSubscriber<I>

Parameters:

item - the item, must not be null.

onCompletion

public void onCompletion()

Description copied from interface: MultiSubscriber

Method called when the upstream emits a completion terminal event.

No further events will be sent even if Subscription.request(long) is invoked again.

Specified by:

onCompletion in interface MultiSubscriber<I>

request

public void request(long numberOfItems)

Specified by:

request in interface org.reactivestreams.Subscription

cancel

public void cancel()

Specified by:

cancel in interface org.reactivestreams.Subscription

compareAndSwapDownstreamCancellationRequest

protected final boolean compareAndSwapDownstreamCancellationRequest()

cancelUpstream

protected void cancelUpstream()