com.metamatrix.dqp.client
Class ResultsFuture<T>

java.lang.Object
  com.metamatrix.dqp.client.ResultsFuture<T>

All Implemented Interfaces:

java.util.concurrent.Future<T>

public class ResultsFuture<T>
extends java.lang.Object
implements java.util.concurrent.Future<T>

Implements a call back based future that can also have completion listeners.

Nested Class Summary

static interface

ResultsFuture.CompletionListener<T>

Constructor Summary

ResultsFuture()

Method Summary

void	addCompletionListener(ResultsFuture.CompletionListener<T> listener)
boolean	cancel(boolean mayInterruptIfRunning)
protected T	convertResult()
T	get()
T	get(long timeout, java.util.concurrent.TimeUnit unit)
ResultsReceiver<T>	getResultsReceiver()
boolean	isCancelled()
boolean	isDone()

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultsFuture

public ResultsFuture()

Method Detail

getResultsReceiver

public ResultsReceiver<T> getResultsReceiver()

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

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

get

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

Specified by:

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

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

convertResult

protected T convertResult()
                   throws java.util.concurrent.ExecutionException

Throws:

java.util.concurrent.ExecutionException

get

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

Specified by:

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

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

java.util.concurrent.TimeoutException

isCancelled

public boolean isCancelled()

Specified by:

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

isDone

public boolean isDone()

Specified by:

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

addCompletionListener

public void addCompletionListener(ResultsFuture.CompletionListener<T> listener)