Package io.reactivex.rxjava3.internal.operators.flowable

Class FlowableDoFinally.DoFinallyConditionalSubscriber<T>

java.lang.Object

java.lang.Number

java.util.concurrent.atomic.AtomicInteger

io.reactivex.rxjava3.internal.subscriptions.BasicIntQueueSubscription<T>

io.reactivex.rxjava3.internal.operators.flowable.FlowableDoFinally.DoFinallyConditionalSubscriber<T>

All Implemented Interfaces:

FlowableSubscriber<T>, ConditionalSubscriber<T>, QueueFuseable<T>, QueueSubscription<T>, SimpleQueue<T>, Serializable, org.reactivestreams.Subscriber<T>, org.reactivestreams.Subscription

Enclosing class:

FlowableDoFinally<T>

static final class FlowableDoFinally.DoFinallyConditionalSubscriber<T>
extends BasicIntQueueSubscription<T>
implements ConditionalSubscriber<T>

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final ConditionalSubscriber<? super T>	downstream
(package private) final Action	onFinally
(package private) QueueSubscription<T>	qs
private static final long	serialVersionUID
(package private) boolean	syncFused
(package private) org.reactivestreams.Subscription	upstream

Fields inherited from interface io.reactivex.rxjava3.operators.QueueFuseable

ANY, ASYNC, BOUNDARY, NONE, SYNC

Constructor Summary

Constructors

Constructor	Description
DoFinallyConditionalSubscriber(ConditionalSubscriber<? super T> actual, Action onFinally)

Method Summary

Modifier and Type	Method	Description
void	cancel()
void	clear()	Removes all enqueued items from this queue.
boolean	isEmpty()	Returns true if the queue is empty.
void	onComplete()
void	onError(Throwable t)
void	onNext(T t)
void	onSubscribe(org.reactivestreams.Subscription s)	Implementors of this method should make sure everything that needs to be visible in Subscriber.onNext(Object) is established before calling Subscription.request(long).
T	poll()	Tries to dequeue a value (non-null) or returns null if the queue is empty.
void	request(long n)
int	requestFusion(int mode)	Request a fusion mode from the upstream.
(package private) void	runFinally()
boolean	tryOnNext(T t)	Conditionally takes the value.

Methods inherited from class io.reactivex.rxjava3.internal.subscriptions.BasicIntQueueSubscription

offer, offer

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

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

downstream

final ConditionalSubscriber<? super T> downstream

onFinally

final Action onFinally

upstream

org.reactivestreams.Subscription upstream

qs

QueueSubscription<T> qs

syncFused

boolean syncFused

Constructor Details

DoFinallyConditionalSubscriber

DoFinallyConditionalSubscriber(ConditionalSubscriber<? super T> actual,
 Action onFinally)

Method Details

onSubscribe

public void onSubscribe(org.reactivestreams.Subscription s)

Description copied from interface: FlowableSubscriber

Implementors of this method should make sure everything that needs to be visible in Subscriber.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.

Specified by:

onSubscribe in interface FlowableSubscriber<T>

Specified by:

onSubscribe in interface org.reactivestreams.Subscriber<T>

onNext

public void onNext(T t)

Specified by:

onNext in interface org.reactivestreams.Subscriber<T>

tryOnNext

public boolean tryOnNext(T t)

Description copied from interface: ConditionalSubscriber

Conditionally takes the value.

Specified by:

tryOnNext in interface ConditionalSubscriber<T>

Parameters:

t - the value to deliver

Returns:

true if the value has been accepted, false if the value has been rejected and the next value can be sent immediately

onError

public void onError(Throwable t)

Specified by:

onError in interface org.reactivestreams.Subscriber<T>

onComplete

public void onComplete()

Specified by:

onComplete in interface org.reactivestreams.Subscriber<T>

cancel

public void cancel()

Specified by:

cancel in interface org.reactivestreams.Subscription

request

public void request(long n)

Specified by:

request in interface org.reactivestreams.Subscription

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 interface QueueFuseable<T>

Parameters:

mode - the requested fusion mode, allowed values are QueueFuseable.SYNC, QueueFuseable.ASYNC, QueueFuseable.ANY combined with QueueFuseable.BOUNDARY (e.g., requestFusion(SYNC | BOUNDARY)).

Returns:

the established fusion mode: QueueFuseable.NONE, QueueFuseable.SYNC, QueueFuseable.ASYNC.

clear

public void clear()

Description copied from interface: SimpleQueue

Removes all enqueued items from this queue.

Specified by:

clear in interface SimpleQueue<T>

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 interface SimpleQueue<T>

Returns:

true if the queue is empty

poll

@Nullable
public T poll()
       throws 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 interface SimpleQueue<T>

Returns:

the item or null to indicate an empty queue

Throws:

Throwable - if some pre-processing of the dequeued item (usually through fused functions) throws.

runFinally

void runFinally()