Top Description Inners Fields Constructors Methods
io.reactivex.internal.operators.flowable

public final Class FlowableReduceMaybe<T>

extends Maybe<T>
implements HasUpstreamPublisher<T>, FuseToFlowable<T>
Class Inheritance
All Implemented Interfaces
io.reactivex.internal.fuseable.FuseToFlowable, io.reactivex.internal.fuseable.HasUpstreamPublisher
Type Parameters
<T>
the value type
Imports
org.reactivestreams.*, io.reactivex.*, io.reactivex.disposables.Disposable, io.reactivex.exceptions.Exceptions, io.reactivex.functions.BiFunction, io.reactivex.internal.functions.ObjectHelper, io.reactivex.internal.fuseable.*, io.reactivex.internal.subscriptions.SubscriptionHelper, io.reactivex.plugins.RxJavaPlugins
Reduce a Flowable into a single value exposed as Single or signal NoSuchElementException.

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class
FlowableReduceMaybe.ReduceSubscriber<T>

Field Summary

Modifier and TypeField and Description
pack-priv final BiFunction<T, T, T>
reducer

pack-priv final Flowable<T>
source

Constructor Summary

AccessConstructor and Description
public
FlowableReduceMaybe(Flowable<T> source, BiFunction<T, T, T> reducer)

Method Summary

Modifier and TypeMethod and Description
public Flowable<T>
fuseToFlowable()

Implements io.reactivex.internal.fuseable.FuseToFlowable.fuseToFlowable.

Returns a (direct) Flowable for the operator.
public Publisher<T>
source()

Implements io.reactivex.internal.fuseable.HasUpstreamPublisher.source.

Returns the source Publisher.
protected void
subscribeActual(MaybeObserver<? super T>
the MaybeObserver to handle, not null
observer)

Implements abstract io.reactivex.Maybe.subscribeActual.

Implement this method in subclasses to handle the incoming MaybeObservers.
Inherited from io.reactivex.Maybe:
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Field Detail

reducerback to summary
pack-priv final BiFunction<T, T, T> reducer
sourceback to summary
pack-priv final Flowable<T> source

Constructor Detail

FlowableReduceMaybeback to summary
public FlowableReduceMaybe(Flowable<T> source, BiFunction<T, T, T> reducer)

Method Detail

fuseToFlowableback to summary
public Flowable<T> fuseToFlowable()

Implements io.reactivex.internal.fuseable.FuseToFlowable.fuseToFlowable.

Doc from io.reactivex.internal.fuseable.FuseToFlowable.fuseToFlowable.

Returns a (direct) Flowable for the operator.

The implementation should handle the necessary RxJavaPlugins wrapping.

Returns:Flowable<T>

the Flowable instance

Annotations
@Override
sourceback to summary
public Publisher<T> source()

Implements io.reactivex.internal.fuseable.HasUpstreamPublisher.source.

Doc from io.reactivex.internal.fuseable.HasUpstreamPublisher.source.

Returns the source Publisher.

This method is intended to discover the assembly graph of sequences.

Returns:Publisher<T>

the source Publisher

Annotations
@Override
subscribeActualback to summary
protected void subscribeActual(MaybeObserver<? super T> observer)

Implements abstract io.reactivex.Maybe.subscribeActual.

Doc from io.reactivex.Maybe.subscribeActual.

Implement this method in subclasses to handle the incoming MaybeObservers.

There is no need to call any of the plugin hooks on the current Maybe instance or the MaybeObserver; all hooks and basic safeguards have been applied by subscribe(MaybeObserver) before this method gets called.

Parameters
observer:MaybeObserver<? super T>

the MaybeObserver to handle, not null

Annotations
@Override
io.reactivex.internal.operators.flowable back to summary

pack-priv final Class FlowableReduceMaybe.ReduceSubscriber<T>

extends Object
implements FlowableSubscriber<T>, Disposable
Class Inheritance
  • java.lang.Object
  • io.reactivex.internal.operators.flowable.FlowableReduceMaybe.ReduceSubscriber
All Implemented Interfaces
io.reactivex.disposables.Disposable, io.reactivex.FlowableSubscriber, org.reactivestreams.Subscriber

Field Summary

Modifier and TypeField and Description
pack-priv boolean
done

pack-priv final MaybeObserver<? super T>
downstream

pack-priv final BiFunction<T, T, T>
reducer

pack-priv Subscription
upstream

pack-priv T
value

Constructor Summary

AccessConstructor and Description
pack-priv
ReduceSubscriber(MaybeObserver<? super T> actual, BiFunction<T, T, T> reducer)

Method Summary

Modifier and TypeMethod and Description
public void
dispose()

Implements io.reactivex.disposables.Disposable.dispose.

Dispose the resource, the operation should be idempotent.
public boolean
isDisposed()

Implements io.reactivex.disposables.Disposable.isDisposed.

Returns true if this resource has been disposed.
public void
onComplete()

Implements org.reactivestreams.Subscriber.onComplete.

Successful terminal state.
public void
onError(Throwable
the throwable signaled
t)

Implements org.reactivestreams.Subscriber.onError.

Failed terminal state.
public void
onNext(T
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(Subscription
the Subscription that allows requesting data via Subscription#request(long)
s)

Implements io.reactivex.FlowableSubscriber.onSubscribe.

Implementors of this method should make sure everything that needs to be visible in onNext(Object) is established before calling Subscription#request(long).
Inherited from java.lang.Object:
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Field Detail

doneback to summary
pack-priv boolean done
downstreamback to summary
pack-priv final MaybeObserver<? super T> downstream
reducerback to summary
pack-priv final BiFunction<T, T, T> reducer
upstreamback to summary
pack-priv Subscription upstream
valueback to summary
pack-priv T value

Constructor Detail

ReduceSubscriberback to summary
pack-priv ReduceSubscriber(MaybeObserver<? super T> actual, BiFunction<T, T, T> reducer)

Method Detail

disposeback to summary
public void dispose()

Implements io.reactivex.disposables.Disposable.dispose.

Doc from io.reactivex.disposables.Disposable.dispose.

Dispose the resource, the operation should be idempotent.

Annotations
@Override
isDisposedback to summary
public boolean isDisposed()

Implements io.reactivex.disposables.Disposable.isDisposed.

Doc from io.reactivex.disposables.Disposable.isDisposed.

Returns true if this resource has been disposed.

Returns:boolean

true if this resource has been disposed

Annotations
@Override
onCompleteback to summary
public void onComplete()

Implements org.reactivestreams.Subscriber.onComplete.

Doc from org.reactivestreams.Subscriber.onComplete.

Successful terminal state.

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

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(T 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:T

the element signaled

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

Implements io.reactivex.FlowableSubscriber.onSubscribe.

Doc from io.reactivex.FlowableSubscriber.onSubscribe.

Implementors of this method should make sure everything that needs to be visible in onNext(Object) is established before calling Subscription#request(long). In practice this means no initialization should happen after the request() call and additional behavior is thread safe in respect to onNext. 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

Doc from org.reactivestreams.Subscriber.onSubscribe.

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

Annotations
@Override