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io.reactivex.rxjava3.internal.operators.mixed

public final Class MaybeFlatMapPublisher<T, R>

extends Flowable<R>
Class Inheritance
Type Parameters
<T>
the success value type of the Maybe source
<R>
the result type of the Publisher and this operator
Imports
java.util.Objects, java.util.concurrent.atomic.*, org.reactivestreams.*, io.reactivex.rxjava3.core.*, io.reactivex.rxjava3.disposables.Disposable, io.reactivex.rxjava3.exceptions.Exceptions, io.reactivex.rxjava3.functions.Function, io.reactivex.rxjava3.internal.disposables.DisposableHelper, io.reactivex.rxjava3.internal.subscriptions.SubscriptionHelper
Maps the success value of a Maybe onto a Publisher and relays its signals to the downstream subscriber.
Since
2.1.15

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class
MaybeFlatMapPublisher.FlatMapPublisherSubscriber<T, R>

Field Summary

Modifier and TypeField and Description
pack-priv final Function<? super T, ? extends Publisher<? extends R>>
mapper

pack-priv final MaybeSource<T>
source

Constructor Summary

AccessConstructor and Description
public
MaybeFlatMapPublisher(MaybeSource<T> source, Function<? super T, ? extends Publisher<? extends R>> mapper)

Method Summary

Modifier and TypeMethod and Description
protected void
subscribeActual(Subscriber<? super R> s)

Inherited from io.reactivex.rxjava3.core.Flowable:
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Field Detail

mapperback to summary
pack-priv final Function<? super T, ? extends Publisher<? extends R>> mapper
sourceback to summary
pack-priv final MaybeSource<T> source

Constructor Detail

MaybeFlatMapPublisherback to summary
public MaybeFlatMapPublisher(MaybeSource<T> source, Function<? super T, ? extends Publisher<? extends R>> mapper)

Method Detail

subscribeActualback to summary
protected void subscribeActual(Subscriber<? super R> s)
Annotations
@Override
io.reactivex.rxjava3.internal.operators.mixed back to summary

pack-priv final Class MaybeFlatMapPublisher.FlatMapPublisherSubscriber<T, R>

extends AtomicReference<Subscription>
implements FlowableSubscriber<R>, MaybeObserver<T>, Subscription
Class Inheritance
All Implemented Interfaces
org.reactivestreams.Subscription, io.reactivex.rxjava3.core.MaybeObserver, io.reactivex.rxjava3.core.FlowableSubscriber, org.reactivestreams.Subscriber

Field Summary

Modifier and TypeField and Description
pack-priv final Subscriber<? super R>
downstream

pack-priv final Function<? super T, ? extends Publisher<? extends R>>
mapper

pack-priv final AtomicLong
requested

private static final long
serialVersionUID

Hides java.util.concurrent.atomic.AtomicReference.serialVersionUID.

pack-priv Disposable
upstream

Constructor Summary

AccessConstructor and Description
pack-priv
FlatMapPublisherSubscriber(Subscriber<? super R> downstream, Function<? super T, ? extends Publisher<? extends R>> mapper)

Method Summary

Modifier and TypeMethod and Description
public void
cancel()

Implements org.reactivestreams.Subscription.cancel.

Request the Publisher to stop sending data and clean up resources.
public void
onComplete()

Implements org.reactivestreams.Subscriber.onComplete, io.reactivex.rxjava3.core.MaybeObserver.onComplete.

Called once the deferred computation completes normally.
public void
onError(Throwable
the throwable signaled
t)

Implements org.reactivestreams.Subscriber.onError.

Failed terminal state.
public void
onNext(R
the element signaled
t)

Implements org.reactivestreams.Subscriber.onNext.

Data notification sent by the Publisher in response to requests to Subscription#request(long).
public void
onSubscribe(Disposable d)

public void
onSubscribe(Subscription
the Subscription that allows requesting data via Subscription#request(long)
s)

Implements org.reactivestreams.Subscriber.onSubscribe.

Invoked after calling Publisher#subscribe(Subscriber).
public void
onSuccess(T
the item emitted by the Maybe
t)

Implements io.reactivex.rxjava3.core.MaybeObserver.onSuccess.

Notifies the MaybeObserver with one item and that the Maybe has finished sending push-based notifications.
public void
request(long
the strictly positive number of elements to requests to the upstream Publisher
n)

Implements org.reactivestreams.Subscription.request.

No events will be sent by a Publisher until demand is signaled via this method.
Inherited from java.util.concurrent.atomic.AtomicReference:
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Field Detail

downstreamback to summary
pack-priv final Subscriber<? super R> downstream
mapperback to summary
pack-priv final Function<? super T, ? extends Publisher<? extends R>> mapper
requestedback to summary
pack-priv final AtomicLong requested
serialVersionUIDback to summary
private static final long serialVersionUID

Hides java.util.concurrent.atomic.AtomicReference.serialVersionUID.

upstreamback to summary
pack-priv Disposable upstream

Constructor Detail

FlatMapPublisherSubscriberback to summary
pack-priv FlatMapPublisherSubscriber(Subscriber<? super R> downstream, Function<? super T, ? extends Publisher<? extends R>> mapper)

Method Detail

cancelback to summary
public void cancel()

Implements org.reactivestreams.Subscription.cancel.

Doc from org.reactivestreams.Subscription.cancel.

Request the Publisher to stop sending data and clean up resources.

Data may still be sent to meet previously signalled demand after calling cancel.

Annotations
@Override
onCompleteback to summary
public void onComplete()

Implements org.reactivestreams.Subscriber.onComplete, io.reactivex.rxjava3.core.MaybeObserver.onComplete.

Doc from io.reactivex.rxjava3.core.MaybeObserver.onComplete.

Called once the deferred computation completes normally.

Annotations
@Override
onErrorback to summary
public void onError(Throwable t)

Implements org.reactivestreams.Subscriber.onError.

Doc from org.reactivestreams.Subscriber.onError.

Failed terminal state.

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

Parameters
t:Throwable

the throwable signaled

Annotations
@Override
onNextback to summary
public void onNext(R t)

Implements org.reactivestreams.Subscriber.onNext.

Doc from org.reactivestreams.Subscriber.onNext.

Data notification sent by the Publisher in response to requests to Subscription#request(long).

Parameters
t:R

the element signaled

Annotations
@Override
onSubscribeback to summary
public void onSubscribe(Disposable d)
Annotations
@Override
onSubscribeback to summary
public void onSubscribe(Subscription s)

Implements org.reactivestreams.Subscriber.onSubscribe.

Doc from org.reactivestreams.Subscriber.onSubscribe.

Invoked after calling Publisher#subscribe(Subscriber).

No data will start flowing until Subscription#request(long) is invoked.

It is the responsibility of this Subscriber instance to call Subscription#request(long) whenever more data is wanted.

The Publisher will send notifications only in response to Subscription#request(long).

Parameters
s:Subscription

the Subscription that allows requesting data via Subscription#request(long)

Annotations
@Override
onSuccessback to summary
public void onSuccess(T t)

Implements io.reactivex.rxjava3.core.MaybeObserver.onSuccess.

Doc from io.reactivex.rxjava3.core.MaybeObserver.onSuccess.

Notifies the MaybeObserver with one item and that the Maybe has finished sending push-based notifications.

The Maybe will not call this method if it calls onError.

Parameters
t:T

the item emitted by the Maybe

Annotations
@Override
requestback to summary
public void request(long n)

Implements org.reactivestreams.Subscription.request.

Doc from org.reactivestreams.Subscription.request.

No events will be sent by a Publisher until demand is signaled via this method.

It can be called however often and whenever needed—but if the outstanding cumulative demand ever becomes Long.MAX_VALUE or more, it may be treated by the Publisher as "effectively unbounded".

Whatever has been requested can be sent by the Publisher so only signal demand for what can be safely handled.

A Publisher can send less than is requested if the stream ends but then must emit either Subscriber#onError(Throwable) or Subscriber#onComplete().

Parameters
n:long

the strictly positive number of elements to requests to the upstream Publisher

Annotations
@Override