Class FlowableCombineLatest.CombineLatestCoordinator<T,R>
- 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.subscriptions.BasicIntQueueSubscription<R>
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- io.reactivex.rxjava3.internal.operators.flowable.FlowableCombineLatest.CombineLatestCoordinator<T,R>
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- All Implemented Interfaces:
QueueFuseable<R>,QueueSubscription<R>,SimpleQueue<R>,java.io.Serializable,org.reactivestreams.Subscription
- Enclosing class:
- FlowableCombineLatest<T,R>
static final class FlowableCombineLatest.CombineLatestCoordinator<T,R> extends BasicIntQueueSubscription<R>
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Field Summary
Fields Modifier and Type Field Description (package private) booleancancelled(package private) Function<? super java.lang.Object[],? extends R>combiner(package private) intcompletedSources(package private) booleandelayErrors(package private) booleandone(package private) org.reactivestreams.Subscriber<? super R>downstream(package private) AtomicThrowableerror(package private) java.lang.Object[]latest(package private) intnonEmptySources(package private) booleanoutputFused(package private) SpscLinkedArrayQueue<java.lang.Object>queue(package private) java.util.concurrent.atomic.AtomicLongrequestedprivate static longserialVersionUID(package private) FlowableCombineLatest.CombineLatestInnerSubscriber<T>[]subscribers
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Constructor Summary
Constructors Constructor Description CombineLatestCoordinator(org.reactivestreams.Subscriber<? super R> actual, Function<? super java.lang.Object[],? extends R> combiner, int n, int bufferSize, boolean delayErrors)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcancel()(package private) voidcancelAll()(package private) booleancheckTerminated(boolean d, boolean empty, org.reactivestreams.Subscriber<?> a, SpscLinkedArrayQueue<?> q)voidclear()Removes all enqueued items from this queue.(package private) voiddrain()(package private) voiddrainAsync()(package private) voiddrainOutput()(package private) voidinnerComplete(int index)(package private) voidinnerError(int index, java.lang.Throwable e)(package private) voidinnerValue(int index, T value)booleanisEmpty()Returns true if the queue is empty.Rpoll()Tries to dequeue a value (non-null) or returns null if the queue is empty.voidrequest(long n)intrequestFusion(int requestedMode)Request a fusion mode from the upstream.(package private) voidsubscribe(org.reactivestreams.Publisher<? extends T>[] sources, int n)-
Methods inherited from class io.reactivex.rxjava3.internal.subscriptions.BasicIntQueueSubscription
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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downstream
final org.reactivestreams.Subscriber<? super R> downstream
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subscribers
final FlowableCombineLatest.CombineLatestInnerSubscriber<T>[] subscribers
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queue
final SpscLinkedArrayQueue<java.lang.Object> queue
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latest
final java.lang.Object[] latest
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delayErrors
final boolean delayErrors
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outputFused
boolean outputFused
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nonEmptySources
int nonEmptySources
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completedSources
int completedSources
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cancelled
volatile boolean cancelled
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requested
final java.util.concurrent.atomic.AtomicLong requested
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done
volatile boolean done
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error
final AtomicThrowable error
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Method Detail
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request
public void request(long n)
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cancel
public void cancel()
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subscribe
void subscribe(org.reactivestreams.Publisher<? extends T>[] sources, int n)
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innerValue
void innerValue(int index, T value)
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innerComplete
void innerComplete(int index)
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innerError
void innerError(int index, java.lang.Throwable e)
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drainOutput
void drainOutput()
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drainAsync
void drainAsync()
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drain
void drain()
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checkTerminated
boolean checkTerminated(boolean d, boolean empty, org.reactivestreams.Subscriber<?> a, SpscLinkedArrayQueue<?> q)
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cancelAll
void cancelAll()
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requestFusion
public int requestFusion(int requestedMode)
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.- Parameters:
requestedMode- 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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poll
@Nullable public R 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.- 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:SimpleQueueRemoves all enqueued items from this queue.
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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).- Returns:
- true if the queue is empty
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