net.apexes.wsonrpc.util

类 AbstractFuture<V>

java.lang.Object

net.apexes.wsonrpc.util.AbstractFuture<V>

类型参数:

V - V

所有已实现的接口:

Future<V>

public abstract class AbstractFuture<V>
extends Object
implements Future<V>

From Google Guava project.

构造器概要

构造器

限定符	构造器和说明
protected	AbstractFuture() Constructor for use by subclasses.

方法概要

限定符和类型	方法和说明
boolean	cancel(boolean mayInterruptIfRunning)
static <T> T	checkNotNull(T reference) Ensures that an object reference passed as a parameter to the calling method is not null.
V	get() The default AbstractFuture implementation throws InterruptedException if the current thread is interrupted before or during the call, even if the value is already available.
V	get(long timeout, TimeUnit unit) The default AbstractFuture implementation throws InterruptedException if the current thread is interrupted before or during the call, even if the value is already available.
protected void	interruptTask() Subclasses can override this method to implement interruption of the future's computation.
boolean	isCancelled()
boolean	isDone()
protected boolean	set(V value) Subclasses should invoke this method to set the result of the computation to value.
protected boolean	setException(Throwable throwable) Subclasses should invoke this method to set the result of the computation to an error, throwable.
protected boolean	wasInterrupted() Returns true if this future was cancelled with mayInterruptIfRunning set to true.

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

AbstractFuture

protected AbstractFuture()

Constructor for use by subclasses.

方法详细资料

get

public V get(long timeout,
             TimeUnit unit)
      throws InterruptedException,
             TimeoutException,
             ExecutionException

The default AbstractFuture implementation throws InterruptedException if the current thread is interrupted before or during the call, even if the value is already available.

指定者:

get 在接口中 Future<V>

抛出:

InterruptedException - if the current thread was interrupted before or during the call (optional but recommended).

CancellationException

TimeoutException

ExecutionException

get

public V get()
      throws InterruptedException,
             ExecutionException

The default AbstractFuture implementation throws InterruptedException if the current thread is interrupted before or during the call, even if the value is already available.

指定者:

get 在接口中 Future<V>

抛出:

InterruptedException - if the current thread was interrupted before or during the call (optional but recommended).

CancellationException

ExecutionException

isDone

public boolean isDone()

指定者:

isDone 在接口中 Future<V>

isCancelled

public boolean isCancelled()

指定者:

isCancelled 在接口中 Future<V>

cancel

public boolean cancel(boolean mayInterruptIfRunning)

指定者:

cancel 在接口中 Future<V>

interruptTask

protected void interruptTask()

Subclasses can override this method to implement interruption of the future's computation. The method is invoked automatically by a successful call to cancel(true).

The default implementation does nothing.

从以下版本开始:

10.0

wasInterrupted

protected final boolean wasInterrupted()

Returns true if this future was cancelled with mayInterruptIfRunning set to true.

从以下版本开始:

14.0

set

protected boolean set(V value)

Subclasses should invoke this method to set the result of the computation to value. This will set the state of the future to AbstractFuture.Sync.COMPLETED and invoke the listeners if the state was successfully changed.

参数:

value - the value that was the result of the task.

返回:

true if the state was successfully changed.

setException

protected boolean setException(Throwable throwable)

Subclasses should invoke this method to set the result of the computation to an error, throwable. This will set the state of the future to AbstractFuture.Sync.COMPLETED and invoke the listeners if the state was successfully changed.

参数:

throwable - the exception that the task failed with.

返回:

true if the state was successfully changed.

checkNotNull

public static <T> T checkNotNull(T reference)

Ensures that an object reference passed as a parameter to the calling method is not null.

参数:

reference - an object reference

返回:

the non-null reference that was validated

抛出:

NullPointerException - if reference is null