Package graphql.execution.reactive

Class CompletionStageOrderedSubscriber<U,D>

java.lang.Object

graphql.execution.reactive.CompletionStageSubscriber<U,D>

graphql.execution.reactive.CompletionStageOrderedSubscriber<U,D>

Type Parameters:

U - published upstream elements

D - mapped downstream values

All Implemented Interfaces:

org.reactivestreams.Subscriber<U>

public class CompletionStageOrderedSubscriber<U,D>
extends CompletionStageSubscriber<U,D>
implements org.reactivestreams.Subscriber<U>

This subscriber can be used to map between a Publisher of U elements and map them into CompletionStage of D promises, and it keeps them in the order the Publisher provided them.

Field Summary

Fields inherited from class graphql.execution.reactive.CompletionStageSubscriber

delegatingSubscription, downstreamSubscriber, inFlightDataQ, isTerminal, lock, mapper, onCompleteRun

Constructor Summary

Constructors

Constructor	Description
CompletionStageOrderedSubscriber(java.util.function.Function<U,java.util.concurrent.CompletionStage<D>> mapper, org.reactivestreams.Subscriber<? super D> downstreamSubscriber)

Method Summary

Modifier and Type	Method	Description
protected void	whenNextFinished(java.util.concurrent.CompletionStage<D> completionStage, D d, java.lang.Throwable throwable)	This is called as each mapped CompletionStage completes with a value or exception

Methods inherited from class graphql.execution.reactive.CompletionStageSubscriber

finallyAfterEachPromiseFinishes, getDownstreamSubscriber, handleThrowableDuringMapping, inFlightQIsEmpty, isTerminal, offerToInFlightQ, onComplete, onError, onNext, onSubscribe

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.reactivestreams.Subscriber

onComplete, onError, onNext, onSubscribe

Constructor Detail

CompletionStageOrderedSubscriber

public CompletionStageOrderedSubscriber(java.util.function.Function<U,java.util.concurrent.CompletionStage<D>> mapper,
                                        org.reactivestreams.Subscriber<? super D> downstreamSubscriber)

Method Detail

whenNextFinished

protected void whenNextFinished(java.util.concurrent.CompletionStage<D> completionStage,
                                D d,
                                java.lang.Throwable throwable)

Description copied from class: CompletionStageSubscriber

This is called as each mapped CompletionStage completes with a value or exception

Overrides:

whenNextFinished in class CompletionStageSubscriber<U,D>

Parameters:

completionStage - the completion stage that has completed

d - the value completed

throwable - or the throwable that happened during completion