org.apache.crail.core

Class CoreMetaDataOperation<R,T>

java.lang.Object

org.apache.crail.core.CoreMetaDataOperation<R,T>

All Implemented Interfaces:

Future<T>, Upcoming<T>

public abstract class CoreMetaDataOperation<R,T>
extends Object
implements Upcoming<T>

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	RPC_DONE
protected static int	RPC_ERROR
protected static int	RPC_PENDING
protected Future<R>	rpcResult

Constructor Summary

Constructors

Constructor and Description
CoreMetaDataOperation(Future<R> result)

Method Summary

Modifier and Type	Method and Description
boolean	cancel(boolean mayInterruptIfRunning)
T	early()
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

Field Detail

RPC_PENDING

protected static int RPC_PENDING

RPC_DONE

protected static int RPC_DONE

RPC_ERROR

protected static int RPC_ERROR

rpcResult

protected Future<R> rpcResult

Constructor Detail

CoreMetaDataOperation

public CoreMetaDataOperation(Future<R> result)

Method Detail

isDone

public boolean isDone()

Specified by:

isDone 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

early

public T early()
        throws Exception

Specified by:

early in interface Upcoming<T>

Throws:

Exception

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<T>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<T>