com.google.appengine.api.utils
Class FutureWrapper<K,V>

java.lang.Object
  com.google.appengine.api.utils.FutureWrapper<K,V>

Type Parameters:

K - The type of this Future

V - The type of the wrapped Future

All Implemented Interfaces:

java.util.concurrent.Future<V>

public abstract class FutureWrapper<K,V>
extends java.lang.Object
implements java.util.concurrent.Future<V>

FutureWrapper is a simple Future that wraps a parent Future. This class is thread-safe.

Constructor Summary

FutureWrapper(java.util.concurrent.Future<K> parent)

Method Summary

boolean	cancel(boolean mayInterruptIfRunning)
boolean	equals(java.lang.Object obj)
V	get()
V	get(long timeout, java.util.concurrent.TimeUnit unit)
int	hashCode()
boolean	isCancelled()
boolean	isDone()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FutureWrapper

public FutureWrapper(java.util.concurrent.Future<K> parent)

Method Detail

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface java.util.concurrent.Future<V>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface java.util.concurrent.Future<V>

isDone

public boolean isDone()

Specified by:

isDone in interface java.util.concurrent.Future<V>

get

public V get()
      throws java.util.concurrent.ExecutionException,
             java.lang.InterruptedException

Specified by:

get in interface java.util.concurrent.Future<V>

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

get

public V get(long timeout,
             java.util.concurrent.TimeUnit unit)
      throws java.lang.InterruptedException,
             java.util.concurrent.TimeoutException,
             java.util.concurrent.ExecutionException

Specified by:

get in interface java.util.concurrent.Future<V>

Throws:

java.lang.InterruptedException

java.util.concurrent.TimeoutException

java.util.concurrent.ExecutionException

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public final boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object