Package rx.internal.operators

Class OnSubscribeRange.RangeProducer

java.lang.Object

java.lang.Number

java.util.concurrent.atomic.AtomicLong

rx.internal.operators.OnSubscribeRange.RangeProducer

All Implemented Interfaces:

Serializable, Producer

Enclosing class:

OnSubscribeRange

static final class OnSubscribeRange.RangeProducer
extends AtomicLong
implements Producer

Field Summary

Fields

Modifier and Type	Field	Description
private final Subscriber<? super Integer>	childSubscriber
private long	currentIndex
private final int	endOfRange
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
RangeProducer(Subscriber<? super Integer> childSubscriber, int startIndex, int endIndex)

Method Summary

Modifier and Type	Method	Description
(package private) void	fastpath()	Emits all remaining values without decrementing the requested amount.
void	request(long requestedAmount)	Request a certain maximum number of items from this Producer.
(package private) void	slowpath(long requestedAmount)	Emits as many values as requested or remaining from the range, whichever is smaller.

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

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

childSubscriber

private final Subscriber<? super Integer> childSubscriber

endOfRange

private final int endOfRange

currentIndex

private long currentIndex

Constructor Details

RangeProducer

RangeProducer(Subscriber<? super Integer> childSubscriber,
 int startIndex,
 int endIndex)

Method Details

request

public void request(long requestedAmount)

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:

requestedAmount - 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

slowpath

void slowpath(long requestedAmount)

Emits as many values as requested or remaining from the range, whichever is smaller.

fastpath

void fastpath()

Emits all remaining values without decrementing the requested amount.