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io.reactivex.internal.operators.maybe

public final Class MaybeCount<T>

extends Single<Long>
implements HasUpstreamMaybeSource<T>
Class Inheritance
All Implemented Interfaces
io.reactivex.internal.fuseable.HasUpstreamMaybeSource
Type Parameters
<T>
the source value type
Imports
io.reactivex.*, io.reactivex.disposables.Disposable, io.reactivex.internal.disposables.DisposableHelper, io.reactivex.internal.fuseable.HasUpstreamMaybeSource
Signals 1L if the source signalled an item or 0L if the source is empty.

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class
MaybeCount.CountMaybeObserver

Field Summary

Modifier and TypeField and Description
pack-priv final MaybeSource<T>
source

Constructor Summary

AccessConstructor and Description
public
MaybeCount(MaybeSource<T> source)

Method Summary

Modifier and TypeMethod and Description
public MaybeSource<T>
source()

Implements io.reactivex.internal.fuseable.HasUpstreamMaybeSource.source.

Returns the upstream source of this Maybe.
protected void
subscribeActual(SingleObserver<? super Long>
the SingleObserver to handle, not null
observer)

Implements abstract io.reactivex.Single.subscribeActual.

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

sourceback to summary
pack-priv final MaybeSource<T> source

Constructor Detail

MaybeCountback to summary
public MaybeCount(MaybeSource<T> source)

Method Detail

sourceback to summary
public MaybeSource<T> source()

Implements io.reactivex.internal.fuseable.HasUpstreamMaybeSource.source.

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

Returns the upstream source of this Maybe.

Allows discovering the chain of observables.

Returns:MaybeSource<T>

the source MaybeSource

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

Implements abstract io.reactivex.Single.subscribeActual.

Doc from io.reactivex.Single.subscribeActual.

Implement this method in subclasses to handle the incoming SingleObservers.

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

Parameters
observer:SingleObserver<? super Long>

the SingleObserver to handle, not null

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

pack-priv final Class MaybeCount.CountMaybeObserver

extends Object
implements MaybeObserver<Object>, Disposable
Class Inheritance
  • java.lang.Object
  • io.reactivex.internal.operators.maybe.MaybeCount.CountMaybeObserver
All Implemented Interfaces
io.reactivex.disposables.Disposable, io.reactivex.MaybeObserver

Field Summary

Modifier and TypeField and Description
pack-priv final SingleObserver<? super Long>
downstream

pack-priv Disposable
upstream

Constructor Summary

AccessConstructor and Description
pack-priv
CountMaybeObserver(SingleObserver<? super Long> downstream)

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 io.reactivex.MaybeObserver.onComplete.

Called once the deferred computation completes normally.
public void
onError(Throwable
the exception encountered by the Maybe
e)

Implements io.reactivex.MaybeObserver.onError.

Notifies the MaybeObserver that the Maybe has experienced an error condition.
public void
onSubscribe(Disposable
the Disposable instance whose Disposable#dispose() can be called anytime to cancel the connection
d)

Implements io.reactivex.MaybeObserver.onSubscribe.

Provides the MaybeObserver with the means of cancelling (disposing) the connection (channel) with the Maybe in both synchronous (from within onSubscribe(Disposable) itself) and asynchronous manner.
public void
onSuccess(Object
the item emitted by the Maybe
value)

Implements io.reactivex.MaybeObserver.onSuccess.

Notifies the MaybeObserver with one item and that the Maybe has finished sending push-based notifications.
Inherited from java.lang.Object:
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Field Detail

downstreamback to summary
pack-priv final SingleObserver<? super Long> downstream
upstreamback to summary
pack-priv Disposable upstream

Constructor Detail

CountMaybeObserverback to summary
pack-priv CountMaybeObserver(SingleObserver<? super Long> downstream)

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 io.reactivex.MaybeObserver.onComplete.

Doc from io.reactivex.MaybeObserver.onComplete.

Called once the deferred computation completes normally.

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

Implements io.reactivex.MaybeObserver.onError.

Doc from io.reactivex.MaybeObserver.onError.

Notifies the MaybeObserver that the Maybe has experienced an error condition.

If the Maybe calls this method, it will not thereafter call onSuccess.

Parameters
e:Throwable

the exception encountered by the Maybe

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

Implements io.reactivex.MaybeObserver.onSubscribe.

Doc from io.reactivex.MaybeObserver.onSubscribe.

Provides the MaybeObserver with the means of cancelling (disposing) the connection (channel) with the Maybe in both synchronous (from within onSubscribe(Disposable) itself) and asynchronous manner.

Parameters
d:Disposable

the Disposable instance whose Disposable#dispose() can be called anytime to cancel the connection

Annotations
@Override
onSuccessback to summary
public void onSuccess(Object value)

Implements io.reactivex.MaybeObserver.onSuccess.

Doc from io.reactivex.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
value:Object

the item emitted by the Maybe

Annotations
@Override