Class ObservableDoFinally.DoFinallyObserver<T>
- java.lang.Object
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- java.lang.Number
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- java.util.concurrent.atomic.AtomicInteger
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- io.reactivex.rxjava3.internal.observers.BasicIntQueueDisposable<T>
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- io.reactivex.rxjava3.internal.operators.observable.ObservableDoFinally.DoFinallyObserver<T>
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- All Implemented Interfaces:
Observer<T>,Disposable,QueueDisposable<T>,QueueFuseable<T>,SimpleQueue<T>,java.io.Serializable
- Enclosing class:
- ObservableDoFinally<T>
static final class ObservableDoFinally.DoFinallyObserver<T> extends BasicIntQueueDisposable<T> implements Observer<T>
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Field Summary
Fields Modifier and Type Field Description (package private) Observer<? super T>downstream(package private) ActiononFinally(package private) QueueDisposable<T>qdprivate static longserialVersionUID(package private) booleansyncFused(package private) Disposableupstream
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Constructor Summary
Constructors Constructor Description DoFinallyObserver(Observer<? super T> actual, Action onFinally)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclear()Removes all enqueued items from this queue.voiddispose()Dispose the resource, the operation should be idempotent.booleanisDisposed()Returns true if this resource has been disposed.booleanisEmpty()Returns true if the queue is empty.voidonComplete()Notifies theObserverthat theObservablehas finished sending push-based notifications.voidonError(java.lang.Throwable t)Notifies theObserverthat theObservablehas experienced an error condition.voidonNext(T t)Provides theObserverwith a new item to observe.voidonSubscribe(Disposable d)Provides theObserverwith the means of cancelling (disposing) the connection (channel) with theObservablein both synchronous (from withinObserver.onNext(Object)) and asynchronous manner.Tpoll()Tries to dequeue a value (non-null) or returns null if the queue is empty.intrequestFusion(int mode)Request a fusion mode from the upstream.(package private) voidrunFinally()-
Methods inherited from class io.reactivex.rxjava3.internal.observers.BasicIntQueueDisposable
offer, offer
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Methods inherited from class java.util.concurrent.atomic.AtomicInteger
accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile
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Field Detail
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serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
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onFinally
final Action onFinally
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upstream
Disposable upstream
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qd
QueueDisposable<T> qd
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syncFused
boolean syncFused
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Method Detail
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onSubscribe
public void onSubscribe(Disposable d)
Description copied from interface:ObserverProvides theObserverwith the means of cancelling (disposing) the connection (channel) with theObservablein both synchronous (from withinObserver.onNext(Object)) and asynchronous manner.- Specified by:
onSubscribein interfaceObserver<T>- Parameters:
d- theDisposableinstance whoseDisposable.dispose()can be called anytime to cancel the connection
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onNext
public void onNext(T t)
Description copied from interface:ObserverProvides theObserverwith a new item to observe.The
Observablemay call this method 0 or more times.The
Observablewill not call this method again after it calls eitherObserver.onComplete()orObserver.onError(java.lang.Throwable).
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onError
public void onError(java.lang.Throwable t)
Description copied from interface:ObserverNotifies theObserverthat theObservablehas experienced an error condition.If the
Observablecalls this method, it will not thereafter callObserver.onNext(T)orObserver.onComplete().
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onComplete
public void onComplete()
Description copied from interface:ObserverNotifies theObserverthat theObservablehas finished sending push-based notifications.The
Observablewill not call this method if it callsObserver.onError(java.lang.Throwable).- Specified by:
onCompletein interfaceObserver<T>
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dispose
public void dispose()
Description copied from interface:DisposableDispose the resource, the operation should be idempotent.- Specified by:
disposein interfaceDisposable
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isDisposed
public boolean isDisposed()
Description copied from interface:DisposableReturns true if this resource has been disposed.- Specified by:
isDisposedin interfaceDisposable- Returns:
- true if this resource has been disposed
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requestFusion
public int requestFusion(int mode)
Description copied from interface:QueueFuseableRequest a fusion mode from the upstream.This should be called before
onSubscribereturns.Calling this method multiple times or after
onSubscribefinished is not allowed and may result in undefined behavior.- Specified by:
requestFusionin interfaceQueueFuseable<T>- Parameters:
mode- the requested fusion mode, allowed values areQueueFuseable.SYNC,QueueFuseable.ASYNC,QueueFuseable.ANYcombined withQueueFuseable.BOUNDARY(e.g.,requestFusion(SYNC | BOUNDARY)).- Returns:
- the established fusion mode:
QueueFuseable.NONE,QueueFuseable.SYNC,QueueFuseable.ASYNC.
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clear
public void clear()
Description copied from interface:SimpleQueueRemoves all enqueued items from this queue.- Specified by:
clearin interfaceSimpleQueue<T>
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isEmpty
public boolean isEmpty()
Description copied from interface:SimpleQueueReturns true if the queue is empty.Note however that due to potential fused functions in
SimpleQueue.poll()it is possible this method returns false but then poll() returns null because the fused function swallowed the available item(s).- Specified by:
isEmptyin interfaceSimpleQueue<T>- Returns:
- true if the queue is empty
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poll
@Nullable public T poll() throws java.lang.Throwable
Description copied from interface:SimpleQueueTries to dequeue a value (non-null) or returns null if the queue is empty.If the producer uses
SimpleQueue.offer(Object, Object)and when polling in pairs, if the first poll() returns a non-null item, the second poll() is guaranteed to return a non-null item as well.- Specified by:
pollin interfaceSimpleQueue<T>- Returns:
- the item or null to indicate an empty queue
- Throws:
java.lang.Throwable- if some pre-processing of the dequeued item (usually through fused functions) throws.
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runFinally
void runFinally()
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