Package org.apache.mina.core.future

Class DefaultReadFuture

java.lang.Object

org.apache.mina.core.future.DefaultIoFuture

org.apache.mina.core.future.DefaultReadFuture

All Implemented Interfaces:

IoFuture, ReadFuture

public class DefaultReadFuture
extends DefaultIoFuture
implements ReadFuture

A default implementation of WriteFuture.

Author:

Apache MINA Project

Constructor Summary

Constructors

Constructor	Description
DefaultReadFuture(IoSession session)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
ReadFuture	addListener(IoFutureListener<?> listener)	Adds an event listener which is notified when this future is completed.
ReadFuture	await()	Wait for the asynchronous operation to complete.
ReadFuture	awaitUninterruptibly()	Wait for the asynchronous operation to complete uninterruptibly.
Throwable	getException()
Object	getMessage()	Get the read message.
boolean	isClosed()
boolean	isRead()
ReadFuture	removeListener(IoFutureListener<?> listener)	Removes an existing event listener so it won't be notified when the future is completed.
void	setClosed()	Sets the associated IoSession is closed.
void	setException(Throwable exception)	Sets the cause of the read failure, and notifies all threads waiting for this future.
void	setRead(Object message)	Sets the message is written, and notifies all threads waiting for this future.

Methods inherited from class org.apache.mina.core.future.DefaultIoFuture

await, await, awaitUninterruptibly, awaitUninterruptibly, getSession, getValue, isDone, join, join, setValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.mina.core.future.IoFuture

await, await, awaitUninterruptibly, awaitUninterruptibly, getSession, isDone, join, join

Constructor Detail

DefaultReadFuture

public DefaultReadFuture(IoSession session)

Creates a new instance.

Parameters:

session - The associated session

Method Detail

getMessage

public Object getMessage()

Get the read message.

Specified by:

getMessage in interface ReadFuture

Returns:

the received message. It returns null if this future is not ready or the associated IoSession has been closed.

isRead

public boolean isRead()

Specified by:

isRead in interface ReadFuture

Returns:

true if a message was received successfully.

isClosed

public boolean isClosed()

Specified by:

isClosed in interface ReadFuture

Returns:

true if the IoSession associated with this future has been closed.

getException

public Throwable getException()

Specified by:

getException in interface ReadFuture

Returns:

the cause of the read failure if and only if the read operation has failed due to an Exception. Otherwise, null is returned.

setClosed

public void setClosed()

Sets the associated IoSession is closed. This method is invoked by MINA internally. Please do not call this method directly.

Specified by:

setClosed in interface ReadFuture

setRead

public void setRead(Object message)

Sets the message is written, and notifies all threads waiting for this future. This method is invoked by MINA internally. Please do not call this method directly.

Specified by:

setRead in interface ReadFuture

Parameters:

message - The received message to store in this future

setException

public void setException(Throwable exception)

Sets the cause of the read failure, and notifies all threads waiting for this future. This method is invoked by MINA internally. Please do not call this method directly.

Specified by:

setException in interface ReadFuture

Parameters:

exception - The exception to store in the Future instance

await

public ReadFuture await()
                 throws InterruptedException

Wait for the asynchronous operation to complete. The attached listeners will be notified when the operation is completed.

Specified by:

await in interface IoFuture

Specified by:

await in interface ReadFuture

Overrides:

await in class DefaultIoFuture

Returns:

The instance of IoFuture that we are waiting for

Throws:

InterruptedException - If the thread is interrupted while waiting

awaitUninterruptibly

public ReadFuture awaitUninterruptibly()

Wait for the asynchronous operation to complete uninterruptibly. The attached listeners will be notified when the operation is completed.

Specified by:

awaitUninterruptibly in interface IoFuture

Specified by:

awaitUninterruptibly in interface ReadFuture

Overrides:

awaitUninterruptibly in class DefaultIoFuture

Returns:

the current IoFuture

addListener

public ReadFuture addListener(IoFutureListener<?> listener)

Adds an event listener which is notified when this future is completed. If the listener is added after the completion, the listener is directly notified.

Specified by:

addListener in interface IoFuture

Specified by:

addListener in interface ReadFuture

Overrides:

addListener in class DefaultIoFuture

Parameters:

listener - The listener to add

Returns:

the current IoFuture

removeListener

public ReadFuture removeListener(IoFutureListener<?> listener)

Removes an existing event listener so it won't be notified when the future is completed.

Specified by:

removeListener in interface IoFuture

Specified by:

removeListener in interface ReadFuture

Overrides:

removeListener in class DefaultIoFuture

Parameters:

listener - The listener to remove

Returns:

the current IoFuture