Package rx.subjects
Class ReplaySubject.ReplayProducer<T>
java.lang.Object
java.lang.Number
java.util.concurrent.atomic.AtomicInteger
rx.subjects.ReplaySubject.ReplayProducer<T>
- Type Parameters:
T
- the value type
- All Implemented Interfaces:
Serializable
,Producer
,Subscription
- Enclosing class:
ReplaySubject<T>
static final class ReplaySubject.ReplayProducer<T>
extends AtomicInteger
implements Producer, Subscription
A producer and subscription implementation that tracks the current
replay position of a particular subscriber.
The this holds the current work-in-progress indicator used by serializing replays.
-
Field Summary
FieldsModifier and TypeFieldDescription(package private) final Subscriber
<? super T> The wrapped Subscriber instance.(package private) int
Unbounded buffer.drain() uses this field to remember the absolute index of values replayed to this Subscriber.(package private) Object
Stores the current replay node of the buffer to be used by buffer.drain().(package private) final AtomicLong
Holds the current requested amount.private static final long
(package private) final ReplaySubject.ReplayState
<T> Holds the back-reference to the replay state object.(package private) int
Unbounded buffer.drain() uses this index within its current node to indicate how many items were replayed from that particular node so far. -
Constructor Summary
ConstructorsConstructorDescriptionReplayProducer
(Subscriber<? super T> actual, ReplaySubject.ReplayState<T> state) -
Method Summary
Modifier and TypeMethodDescriptionboolean
Indicates whether thisSubscription
is currently unsubscribed.void
request
(long n) Request a certain maximum number of items from this Producer.void
Stops the receipt of notifications on theSubscriber
that was registered when this Subscription was received.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
-
Field Details
-
serialVersionUID
private static final long serialVersionUID- See Also:
-
actual
The wrapped Subscriber instance. -
requested
Holds the current requested amount. -
state
Holds the back-reference to the replay state object. -
index
int indexUnbounded buffer.drain() uses this field to remember the absolute index of values replayed to this Subscriber. -
tailIndex
int tailIndexUnbounded buffer.drain() uses this index within its current node to indicate how many items were replayed from that particular node so far. -
node
Object nodeStores the current replay node of the buffer to be used by buffer.drain().
-
-
Constructor Details
-
ReplayProducer
-
-
Method Details
-
unsubscribe
public void unsubscribe()Description copied from interface:Subscription
Stops the receipt of notifications on theSubscriber
that was registered when this Subscription was received.This allows unregistering an
Subscriber
before it has finished receiving all events (i.e. before onCompleted is called).- Specified by:
unsubscribe
in interfaceSubscription
-
isUnsubscribed
public boolean isUnsubscribed()Description copied from interface:Subscription
Indicates whether thisSubscription
is currently unsubscribed.- Specified by:
isUnsubscribed
in interfaceSubscription
- Returns:
true
if thisSubscription
is currently unsubscribed,false
otherwise
-
request
public void request(long n) Description copied from interface:Producer
Request a certain maximum number of items from this Producer. This is a way of requesting backpressure. To disable backpressure, passLong.MAX_VALUE
to this method.Requests are additive but if a sequence of requests totals more than
Long.MAX_VALUE
thenLong.MAX_VALUE
requests will be actioned and the extras may be ignored. Arriving atLong.MAX_VALUE
by addition of requests cannot be assumed to disable backpressure. For example, the code below may result inLong.MAX_VALUE
requests being actioned only.request(100); request(Long.MAX_VALUE-1);
-