Class ObservableObserveOn.ObserveOnObserver<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.ObservableObserveOn.ObserveOnObserver<T>
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- All Implemented Interfaces:
Observer<T>
,Disposable
,QueueDisposable<T>
,QueueFuseable<T>
,SimpleQueue<T>
,java.io.Serializable
,java.lang.Runnable
- Enclosing class:
- ObservableObserveOn<T>
static final class ObservableObserveOn.ObserveOnObserver<T> extends BasicIntQueueDisposable<T> implements Observer<T>, java.lang.Runnable
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Field Summary
Fields Modifier and Type Field Description (package private) int
bufferSize
(package private) boolean
delayError
(package private) boolean
disposed
(package private) boolean
done
(package private) Observer<? super T>
downstream
(package private) java.lang.Throwable
error
(package private) boolean
outputFused
(package private) SimpleQueue<T>
queue
private static long
serialVersionUID
(package private) int
sourceMode
(package private) Disposable
upstream
(package private) Scheduler.Worker
worker
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Constructor Summary
Constructors Constructor Description ObserveOnObserver(Observer<? super T> actual, Scheduler.Worker worker, boolean delayError, int bufferSize)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) boolean
checkTerminated(boolean d, boolean empty, Observer<? super T> a)
void
clear()
Removes all enqueued items from this queue.void
dispose()
Dispose the resource, the operation should be idempotent.(package private) void
drainFused()
(package private) void
drainNormal()
boolean
isDisposed()
Returns true if this resource has been disposed.boolean
isEmpty()
Returns true if the queue is empty.void
onComplete()
Notifies theObserver
that theObservable
has finished sending push-based notifications.void
onError(java.lang.Throwable t)
Notifies theObserver
that theObservable
has experienced an error condition.void
onNext(T t)
Provides theObserver
with a new item to observe.void
onSubscribe(Disposable d)
Provides theObserver
with the means of cancelling (disposing) the connection (channel) with theObservable
in both synchronous (from withinObserver.onNext(Object)
) and asynchronous manner.T
poll()
Tries to dequeue a value (non-null) or returns null if the queue is empty.int
requestFusion(int mode)
Request a fusion mode from the upstream.void
run()
(package private) void
schedule()
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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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worker
final Scheduler.Worker worker
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delayError
final boolean delayError
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bufferSize
final int bufferSize
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queue
SimpleQueue<T> queue
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upstream
Disposable upstream
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error
java.lang.Throwable error
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done
volatile boolean done
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disposed
volatile boolean disposed
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sourceMode
int sourceMode
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outputFused
boolean outputFused
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Constructor Detail
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ObserveOnObserver
ObserveOnObserver(Observer<? super T> actual, Scheduler.Worker worker, boolean delayError, int bufferSize)
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Method Detail
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onSubscribe
public void onSubscribe(Disposable d)
Description copied from interface:Observer
Provides theObserver
with the means of cancelling (disposing) the connection (channel) with theObservable
in both synchronous (from withinObserver.onNext(Object)
) and asynchronous manner.- Specified by:
onSubscribe
in interfaceObserver<T>
- Parameters:
d
- theDisposable
instance whoseDisposable.dispose()
can be called anytime to cancel the connection
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onNext
public void onNext(T t)
Description copied from interface:Observer
Provides theObserver
with a new item to observe.The
Observable
may call this method 0 or more times.The
Observable
will 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:Observer
Notifies theObserver
that theObservable
has experienced an error condition.If the
Observable
calls this method, it will not thereafter callObserver.onNext(T)
orObserver.onComplete()
.
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onComplete
public void onComplete()
Description copied from interface:Observer
Notifies theObserver
that theObservable
has finished sending push-based notifications.The
Observable
will not call this method if it callsObserver.onError(java.lang.Throwable)
.- Specified by:
onComplete
in interfaceObserver<T>
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dispose
public void dispose()
Description copied from interface:Disposable
Dispose the resource, the operation should be idempotent.- Specified by:
dispose
in interfaceDisposable
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isDisposed
public boolean isDisposed()
Description copied from interface:Disposable
Returns true if this resource has been disposed.- Specified by:
isDisposed
in interfaceDisposable
- Returns:
- true if this resource has been disposed
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schedule
void schedule()
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drainNormal
void drainNormal()
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drainFused
void drainFused()
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run
public void run()
- Specified by:
run
in interfacejava.lang.Runnable
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requestFusion
public int requestFusion(int mode)
Description copied from interface:QueueFuseable
Request a fusion mode from the upstream.This should be called before
onSubscribe
returns.Calling this method multiple times or after
onSubscribe
finished is not allowed and may result in undefined behavior.- Specified by:
requestFusion
in interfaceQueueFuseable<T>
- Parameters:
mode
- the requested fusion mode, allowed values areQueueFuseable.SYNC
,QueueFuseable.ASYNC
,QueueFuseable.ANY
combined withQueueFuseable.BOUNDARY
(e.g.,requestFusion(SYNC | BOUNDARY)
).- Returns:
- the established fusion mode:
QueueFuseable.NONE
,QueueFuseable.SYNC
,QueueFuseable.ASYNC
.
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poll
@Nullable public T poll() throws java.lang.Throwable
Description copied from interface:SimpleQueue
Tries 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:
poll
in 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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clear
public void clear()
Description copied from interface:SimpleQueue
Removes all enqueued items from this queue.- Specified by:
clear
in interfaceSimpleQueue<T>
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isEmpty
public boolean isEmpty()
Description copied from interface:SimpleQueue
Returns 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:
isEmpty
in interfaceSimpleQueue<T>
- Returns:
- true if the queue is empty
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