com.alipay.disruptor

类 BatchEventProcessor<T>

java.lang.Object

com.alipay.disruptor.BatchEventProcessor<T>

类型参数:

T - event implementation storing the data for sharing during exchange or parallel coordination of an event.

所有已实现的接口:

EventProcessor, Runnable

public final class BatchEventProcessor<T>
extends Object
implements EventProcessor

Convenience class for handling the batching semantics of consuming entries from a RingBuffer and delegating the available events to an EventHandler.

If the EventHandler also implements LifecycleAware it will be notified just after the thread is started and just before the thread is shutdown.

构造器概要

构造器

构造器和说明
BatchEventProcessor(DataProvider<T> dataProvider, SequenceBarrier sequenceBarrier, EventHandler<? super T> eventHandler) Construct a EventProcessor that will automatically track the progress by updating its sequence when the EventHandler.onEvent(Object, long, boolean) method returns.

方法概要

方法

限定符和类型	方法和说明
Sequence	getSequence() Get a reference to the Sequence being used by this EventProcessor.
void	halt() Signal that this EventProcessor should stop when it has finished consuming at the next clean break.
boolean	isRunning()
void	run() It is ok to have another thread rerun this method after a halt().
void	setExceptionHandler(ExceptionHandler<? super T> exceptionHandler) Set a new ExceptionHandler for handling exceptions propagated out of the BatchEventProcessor

从类继承的方法 java.lang.Object

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

构造器详细资料

BatchEventProcessor

public BatchEventProcessor(DataProvider<T> dataProvider,
                   SequenceBarrier sequenceBarrier,
                   EventHandler<? super T> eventHandler)

Construct a EventProcessor that will automatically track the progress by updating its sequence when the EventHandler.onEvent(Object, long, boolean) method returns.

参数:

dataProvider - to which events are published.

sequenceBarrier - on which it is waiting.

eventHandler - is the delegate to which events are dispatched.

方法详细资料

getSequence

public Sequence getSequence()

从接口复制的说明: EventProcessor

Get a reference to the Sequence being used by this EventProcessor.

指定者:

getSequence 在接口中 EventProcessor

返回:

reference to the Sequence for this EventProcessor

halt

public void halt()

从接口复制的说明: EventProcessor

Signal that this EventProcessor should stop when it has finished consuming at the next clean break. It will call SequenceBarrier.alert() to notify the thread to check status.

指定者:

halt 在接口中 EventProcessor

isRunning

public boolean isRunning()

指定者:

isRunning 在接口中 EventProcessor

setExceptionHandler

public void setExceptionHandler(ExceptionHandler<? super T> exceptionHandler)

Set a new ExceptionHandler for handling exceptions propagated out of the BatchEventProcessor

参数:

exceptionHandler - to replace the existing exceptionHandler.

run

public void run()

It is ok to have another thread rerun this method after a halt().

指定者:

run 在接口中 Runnable

抛出:

IllegalStateException - if this object instance is already running in a thread