org.gridgain.grid.util.worker

Class GridWorkerFuture<T>

java.lang.Object

java.util.concurrent.locks.AbstractOwnableSynchronizer

java.util.concurrent.locks.AbstractQueuedSynchronizer

org.gridgain.grid.util.future.GridFutureAdapter<T>

org.gridgain.grid.util.worker.GridWorkerFuture<T>

All Implemented Interfaces:

Externalizable, Serializable, GridFuture<T>

public class GridWorkerFuture<T>
extends GridFutureAdapter<T>

Future for locally executed closure that defines cancellation logic.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.locks.AbstractQueuedSynchronizer

AbstractQueuedSynchronizer.ConditionObject

Field Summary

Fields inherited from class org.gridgain.grid.util.future.GridFutureAdapter

ctx, log

Constructor Summary

Constructors

Constructor and Description
GridWorkerFuture() Empty constructor required for Externalizable.
GridWorkerFuture(GridKernalContext ctx)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	cancel() Default no-op implementation that always returns false.
void	setWorker(GridWorker w)

Methods inherited from class org.gridgain.grid.util.future.GridFutureAdapter

chain, checkValid, concurrentNotify, concurrentNotify, duration, endTime, error, get, get, get, get0, isCancelled, isDone, isFailed, isValid, listenAsync, onCancelled, onDone, onDone, onDone, onDone, readExternal, result, startTime, stopListenAsync, syncNotify, syncNotify, toString, tryAcquireShared, tryReleaseShared, writeExternal

Methods inherited from class java.util.concurrent.locks.AbstractQueuedSynchronizer

acquire, acquireInterruptibly, acquireShared, acquireSharedInterruptibly, compareAndSetState, getExclusiveQueuedThreads, getFirstQueuedThread, getQueuedThreads, getQueueLength, getSharedQueuedThreads, getState, getWaitingThreads, getWaitQueueLength, hasContended, hasQueuedPredecessors, hasQueuedThreads, hasWaiters, isHeldExclusively, isQueued, owns, release, releaseShared, setState, tryAcquire, tryAcquireNanos, tryAcquireSharedNanos, tryRelease

Methods inherited from class java.util.concurrent.locks.AbstractOwnableSynchronizer

getExclusiveOwnerThread, setExclusiveOwnerThread

Methods inherited from class java.lang.Object

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

Constructor Detail

GridWorkerFuture

public GridWorkerFuture(GridKernalContext ctx)

Parameters:

ctx - Context.

GridWorkerFuture

public GridWorkerFuture()

Empty constructor required for Externalizable.

Method Detail

cancel

public boolean cancel()
               throws GridException

Default no-op implementation that always returns false. Futures that do support cancellation should override this method and call GridFutureAdapter.onCancelled() callback explicitly if cancellation indeed did happen.

Specified by:

cancel in interface GridFuture<T>

Overrides:

cancel in class GridFutureAdapter<T>

Returns:

True if future was canceled (i.e. was not finished prior to this call).

Throws:

GridException - If cancellation failed.

setWorker

public void setWorker(GridWorker w)

Parameters:

w - Worker.