程序包 cn.taketoday.util.concurrent

类 SettableFutureNotifier<V,F extends ListenableFuture<V>>

java.lang.Object

cn.taketoday.util.concurrent.SettableFutureNotifier<V,F>

类型参数:

V - the type of value returned by the future

F - the type of future

所有已实现的接口:

FutureListener<F>, EventListener

public class SettableFutureNotifier<V,F extends ListenableFuture<V>>
extends Object
implements FutureListener<F>

FutureListener implementation which takes other SettableFutures and notifies them on completion.

从以下版本开始:

4.0

作者:

Harry Yang

字段概要

字段

修饰符和类型	字段	说明
private final SettableFuture<? super V>[]	futures
private static final Logger	logger
private final boolean	logNotifyFailure

构造器概要

构造器

构造器	说明
SettableFutureNotifier(boolean logNotifyFailure, SettableFuture<? super V>... futures)	Create a new instance.
SettableFutureNotifier(SettableFuture<? super V>... futures)	Create a new instance.

方法概要

修饰符和类型	方法	说明
static <V, F extends ListenableFuture<V>> F	cascade(boolean logNotifyFailure, F future, SettableFuture<? super V> settableFuture)	Link the ListenableFuture and SettableFuture such that if the ListenableFuture completes the SettableFuture will be notified.
static <V, F extends ListenableFuture<V>> F	cascade(F future, SettableFuture<? super V> settableFuture)	Link the ListenableFuture and SettableFuture such that if the ListenableFuture completes the SettableFuture will be notified.
void	operationComplete(F future)	Invoked when the operation associated with the ListenableFuture has been completed.
private static void	tryCancel(SettableFuture<?> p, Logger logger)	Try to cancel the SettableFuture and log if logger is not null in case this fails.
private static void	tryFailure(SettableFuture<?> p, Throwable cause, Logger logger)	Try to mark the SettableFuture as failure and log if logger is not null in case this fails.
private static <V> void	trySuccess(SettableFuture<? super V> p, V result, Logger logger)	Try to mark the SettableFuture as success and log if logger is not null in case this fails.

从类继承的方法 java.lang.Object

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

字段详细资料

logger

private static final Logger logger

futures

private final SettableFuture<? super V>[] futures

logNotifyFailure

private final boolean logNotifyFailure

构造器详细资料

SettableFutureNotifier

@SafeVarargs
public SettableFutureNotifier(SettableFuture<? super V>... futures)

Create a new instance.

参数:

futures - the SettableFutures to notify once this FutureListener is notified.

SettableFutureNotifier

@SafeVarargs
public SettableFutureNotifier(boolean logNotifyFailure,
 SettableFuture<? super V>... futures)

Create a new instance.

参数:

logNotifyFailure - true if logging should be done in case notification fails.

futures - the SettableFutures to notify once this FutureListener is notified.

方法详细资料

cascade

public static <V,
F extends ListenableFuture<V>> F cascade(F future,
 SettableFuture<? super V> settableFuture)

Link the ListenableFuture and SettableFuture such that if the ListenableFuture completes the SettableFuture will be notified. Cancellation is propagated both ways such that if the ListenableFuture is cancelled the SettableFuture is cancelled and vise-versa.

类型参数:

V - the type of the value.

F - the type of the ListenableFuture

参数:

future - the ListenableFuture which will be used to listen to for notifying the SettableFuture.

settableFuture - the SettableFuture which will be notified

返回:

the passed in ListenableFuture

cascade

public static <V,
F extends ListenableFuture<V>> F cascade(boolean logNotifyFailure,
 F future,
 SettableFuture<? super V> settableFuture)

Link the ListenableFuture and SettableFuture such that if the ListenableFuture completes the SettableFuture will be notified. Cancellation is propagated both ways such that if the ListenableFuture is cancelled the SettableFuture is cancelled and vise-versa.

类型参数:

V - the type of the value.

F - the type of the ListenableFuture

参数:

logNotifyFailure - true if logging should be done in case notification fails.

future - the ListenableFuture which will be used to listen to for notifying the SettableFuture.

settableFuture - the SettableFuture which will be notified

返回:

the passed in ListenableFuture

operationComplete

public void operationComplete(F future)
                       throws Exception

从接口复制的说明: FutureListener

Invoked when the operation associated with the ListenableFuture has been completed.

指定者:

operationComplete 在接口中 FutureListener<V>

参数:

future - the source ListenableFuture which called this callback

抛出:

Exception

tryCancel

private static void tryCancel(SettableFuture<?> p,
 @Nullable
 Logger logger)

Try to cancel the SettableFuture and log if logger is not null in case this fails.

trySuccess

private static <V> void trySuccess(SettableFuture<? super V> p,
 V result,
 @Nullable
 Logger logger)

Try to mark the SettableFuture as success and log if logger is not null in case this fails.

tryFailure

private static void tryFailure(SettableFuture<?> p,
 Throwable cause,
 @Nullable
 Logger logger)

Try to mark the SettableFuture as failure and log if logger is not null in case this fails.