Package rx.internal.util

Class ScalarSynchronousObservable.ScalarAsyncProducer<T>

java.lang.Object

java.util.concurrent.atomic.AtomicBoolean

rx.internal.util.ScalarSynchronousObservable.ScalarAsyncProducer<T>

Type Parameters:

T - the value type

All Implemented Interfaces:

java.io.Serializable, Action, Action0, Function, Producer

Enclosing class:

ScalarSynchronousObservable<T>

static final class ScalarSynchronousObservable.ScalarAsyncProducer<T>
extends java.util.concurrent.atomic.AtomicBoolean
implements Producer, Action0

Represents a producer which schedules the emission of a scalar value on the first positive request via the given scheduler callback.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Subscriber<? super T>	actual
(package private) Func1<Action0,Subscription>	onSchedule
private static long	serialVersionUID
(package private) T	value

Constructor Summary

Constructors

Constructor	Description
ScalarAsyncProducer(Subscriber<? super T> actual, T value, Func1<Action0,Subscription> onSchedule)

Method Summary

Modifier and Type	Method	Description
void	call()
void	request(long n)	Request a certain maximum number of items from this Producer.
java.lang.String	toString()

Methods inherited from class java.util.concurrent.atomic.AtomicBoolean

compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, get, getAcquire, getAndSet, getOpaque, getPlain, lazySet, set, setOpaque, setPlain, setRelease, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

actual

final Subscriber<? super T> actual

value

final T value

onSchedule

final Func1<Action0,Subscription> onSchedule

Constructor Detail

ScalarAsyncProducer

public ScalarAsyncProducer(Subscriber<? super T> actual,
                           T value,
                           Func1<Action0,Subscription> onSchedule)

Method Detail

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, pass Long.MAX_VALUE to this method.

Requests are additive but if a sequence of requests totals more than Long.MAX_VALUE then Long.MAX_VALUE requests will be actioned and the extras may be ignored. Arriving at Long.MAX_VALUE by addition of requests cannot be assumed to disable backpressure. For example, the code below may result in Long.MAX_VALUE requests being actioned only.

 request(100);
 request(Long.MAX_VALUE-1);
 

Specified by:

request in interface Producer

Parameters:

n - the maximum number of items you want this Producer to produce, or Long.MAX_VALUE if you want the Producer to produce items at its own pace

call

public void call()

Specified by:

call in interface Action0

toString

public java.lang.String toString()

Overrides:

toString in class java.util.concurrent.atomic.AtomicBoolean