Class SingleFlatMapIterableFlowable.FlatMapIterableObserver<T,R>
- All Implemented Interfaces:
SingleObserver<T>
,QueueFuseable<R>
,QueueSubscription<R>
,SimpleQueue<R>
,Serializable
,org.reactivestreams.Subscription
- Enclosing class:
SingleFlatMapIterableFlowable<T,
R>
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Field Summary
FieldsModifier and TypeFieldDescription(package private) boolean
(package private) final org.reactivestreams.Subscriber
<? super R> (package private) boolean
(package private) final AtomicLong
private static final long
(package private) Disposable
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
cancel()
void
clear()
Removes all enqueued items from this queue.(package private) void
drain()
(package private) void
boolean
isEmpty()
Returns true if the queue is empty.void
Notifies theSingleObserver
that theSingle
has experienced an error condition.void
Provides theSingleObserver
with the means of cancelling (disposing) the connection (channel) with the Single in both synchronous (from withinonSubscribe(Disposable)
itself) and asynchronous manner.void
Notifies theSingleObserver
with a single item and that theSingle
has finished sending push-based notifications.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.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
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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downstream
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mapper
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requested
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upstream
Disposable upstream -
it
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cancelled
volatile boolean cancelled -
outputFused
boolean outputFused
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Constructor Details
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FlatMapIterableObserver
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Method Details
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onSubscribe
Description copied from interface:SingleObserver
Provides theSingleObserver
with the means of cancelling (disposing) the connection (channel) with the Single in both synchronous (from withinonSubscribe(Disposable)
itself) and asynchronous manner.- Specified by:
onSubscribe
in interfaceSingleObserver<T>
- Parameters:
d
- the Disposable instance whoseDisposable.dispose()
can be called anytime to cancel the connection
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onSuccess
Description copied from interface:SingleObserver
Notifies theSingleObserver
with a single item and that theSingle
has finished sending push-based notifications.The
Single
will not call this method if it callsSingleObserver.onError(java.lang.Throwable)
.- Specified by:
onSuccess
in interfaceSingleObserver<T>
- Parameters:
value
- the item emitted by theSingle
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onError
Description copied from interface:SingleObserver
Notifies theSingleObserver
that theSingle
has experienced an error condition.If the
Single
calls this method, it will not thereafter callSingleObserver.onSuccess(T)
.- Specified by:
onError
in interfaceSingleObserver<T>
- Parameters:
e
- the exception encountered by theSingle
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request
public void request(long n) - Specified by:
request
in interfaceorg.reactivestreams.Subscription
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cancel
public void cancel()- Specified by:
cancel
in interfaceorg.reactivestreams.Subscription
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drain
void drain() -
fastPath
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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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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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poll
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
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