程序包 cn.taketoday.util.concurrent

类 FailedFuture<V>

java.lang.Object

cn.taketoday.util.concurrent.AbstractFuture<V>

cn.taketoday.util.concurrent.CompleteFuture<V>

cn.taketoday.util.concurrent.FailedFuture<V>

所有已实现的接口:

ListenableFuture<V>, Future<V>

public final class FailedFuture<V>
extends CompleteFuture<V>

The CompleteFuture which is failed already.

从以下版本开始:

4.0 2024/2/26 21:31

作者:

Harry Yang

字段概要

字段

修饰符和类型	字段	说明
private final Throwable	cause

构造器概要

构造器

构造器	说明
FailedFuture(Throwable cause)	Creates a new instance.
FailedFuture(Executor executor, Throwable cause)	Creates a new instance.

方法概要

修饰符和类型	方法	说明
Throwable	getCause()	Returns the cause of the failed operation if the operation failed.
V	getNow()	Return the result without blocking.
boolean	isSuccess()	Returns true if and only if the operation was completed successfully.
V	obtain()	Return the result without blocking.
ListenableFuture<V>	sync()	Waits for this future until it is done, and rethrows the cause of the failure if this future failed.
ListenableFuture<V>	syncUninterruptibly()	Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

从类继承的方法 cn.taketoday.util.concurrent.CompleteFuture

addListener, addListeners, await, await, await, awaitUninterruptibly, awaitUninterruptibly, awaitUninterruptibly, cancel, executor, isCancellable, isCancelled, isDone, removeListener, removeListeners

从类继承的方法 cn.taketoday.util.concurrent.AbstractFuture

get, get

从类继承的方法 java.lang.Object

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

从接口继承的方法 cn.taketoday.util.concurrent.ListenableFuture

addListener, completable, onFailure, onSuccess

字段详细资料

cause

private final Throwable cause

构造器详细资料

FailedFuture

public FailedFuture(Throwable cause)

Creates a new instance.

参数:

cause - the cause of failure

FailedFuture

public FailedFuture(@Nullable
 Executor executor,
 Throwable cause)

Creates a new instance.

参数:

executor - the Executor associated with this future

cause - the cause of failure

方法详细资料

getCause

public Throwable getCause()

从接口复制的说明: ListenableFuture

Returns the cause of the failed operation if the operation failed.

返回:

the cause of the failure. null if succeeded or this future is not completed yet.

isSuccess

public boolean isSuccess()

从接口复制的说明: ListenableFuture

Returns true if and only if the operation was completed successfully.

sync

public ListenableFuture<V> sync()

从接口复制的说明: ListenableFuture

Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

指定者:

sync 在接口中 ListenableFuture<V>

覆盖:

sync 在类中 CompleteFuture<V>

syncUninterruptibly

public ListenableFuture<V> syncUninterruptibly()

从接口复制的说明: ListenableFuture

Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

指定者:

syncUninterruptibly 在接口中 ListenableFuture<V>

覆盖:

syncUninterruptibly 在类中 CompleteFuture<V>

getNow

public V getNow()

从接口复制的说明: ListenableFuture

Return the result without blocking. If the future is not done yet this will return null.

As it is possible that a null value is used to mark the future as successful you also need to check if the future is really done with Future.isDone() and not rely on the returned null value.

obtain

public V obtain()
         throws IllegalStateException

从接口复制的说明: ListenableFuture

Return the result without blocking.

must invoke after ListenableFuture.isSuccess()

指定者:

obtain 在接口中 ListenableFuture<V>

覆盖:

obtain 在类中 AbstractFuture<V>

抛出:

IllegalStateException - SettableFuture.setSuccess(Object) is set null

另请参阅:

• ListenableFuture.isSuccess()
• ListenableFuture.getNow()
• SettableFuture.setSuccess(Object)