Package org.apache.tomcat.jdbc.pool

Class FairBlockingQueue.ItemFuture<T>

java.lang.Object

org.apache.tomcat.jdbc.pool.FairBlockingQueue.ItemFuture<T>

All Implemented Interfaces:

Future<T>

Enclosing class:

FairBlockingQueue<E>

protected class FairBlockingQueue.ItemFuture<T>
extends Object
implements Future<T>

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.concurrent.Future

Future.State

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	canceled
protected T	item
protected FairBlockingQueue<E>.ExchangeCountDownLatch<T>	latch

Constructor Summary

Constructors

Constructor	Description
ItemFuture(FairBlockingQueue<E>.ExchangeCountDownLatch<T> latch)
ItemFuture(T item)

Method Summary

Modifier and Type	Method	Description
boolean	cancel(boolean mayInterruptIfRunning)
T	get()
T	get(long timeout, TimeUnit unit)
boolean	isCancelled()
boolean	isDone()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.concurrent.Future

exceptionNow, resultNow, state

Field Details

item

protected volatile T item

latch

protected volatile FairBlockingQueue<E>.ExchangeCountDownLatch<T> latch

canceled

protected volatile boolean canceled

Constructor Details

ItemFuture

public ItemFuture(T item)

ItemFuture

public ItemFuture(FairBlockingQueue<E>.ExchangeCountDownLatch<T> latch)

Method Details

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<T>

get

public T get()
      throws InterruptedException,
ExecutionException

Specified by:

get in interface Future<T>

Throws:

InterruptedException

ExecutionException

get

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

Specified by:

get in interface Future<T>

Throws:

InterruptedException

ExecutionException

TimeoutException

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<T>

isDone

public boolean isDone()

Specified by:

isDone in interface Future<T>