public abstract class ForwardingFuture<V> extends ForwardingObject implements Future<V>
Future which forwards all its method calls to another future.
Subclasses should override one or more methods to modify the behavior of
the backing future as desired per the decorator pattern.
Most subclasses can just use ForwardingFuture.SimpleForwardingFuture.
| Modifier and Type | Class and Description |
|---|---|
static class |
ForwardingFuture.SimpleForwardingFuture<V>
A simplified version of
ForwardingFuture where subclasses
can pass in an already constructed Future as the delegate. |
| Modifier | Constructor and Description |
|---|---|
protected |
ForwardingFuture()
Constructor for use by subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
cancel(boolean mayInterruptIfRunning) |
protected abstract Future<V> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
V |
get() |
V |
get(long timeout,
TimeUnit unit) |
boolean |
isCancelled() |
boolean |
isDone() |
toStringprotected ForwardingFuture()
protected abstract Future<V> delegate()
ForwardingObjectForwardingSet.delegate(). Concrete subclasses override this method to supply
the instance being decorated.delegate in class ForwardingObjectpublic boolean cancel(boolean mayInterruptIfRunning)
public boolean isCancelled()
isCancelled in interface Future<V>public V get() throws InterruptedException, ExecutionException
get in interface Future<V>InterruptedExceptionExecutionExceptionpublic V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException
get in interface Future<V>InterruptedExceptionExecutionExceptionTimeoutExceptionCopyright © 2010-2015. All Rights Reserved.