au.com.terabit.jproactor
Class OpWrite

java.lang.Object
  au.com.terabit.jproactor.IOOperation
      au.com.terabit.jproactor.OpWrite

public class OpWrite
extends IOOperation

The write operation implementation.

Version:

$Revision$ $Date$

Author:

Yevgeny Libman

Field Summary

protected java.nio.ByteBuffer	m_buffer data buffer
protected int	m_bytesCompleted The number of bytes processed by IO operation.
protected boolean	m_flgExactly This flag denotes that data needs to be written until buffer is empty.

Fields inherited from class au.com.terabit.jproactor.IOOperation

m_asynchChannel, m_errorCause

Method Summary

protected boolean	execute()
java.nio.ByteBuffer	getBuffer() Returns operations' data buffer.
int	getBytesCompleted()
void	onComplete() Called when IO operation has completed - notifies protocol instance that write operation has completed.
int	remaining() Tells the difference between a number of requested and processed bytes at present time.

Methods inherited from class au.com.terabit.jproactor.IOOperation

getChannel, getError, getState

Methods inherited from class java.lang.Object

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

Field Detail

m_buffer

protected java.nio.ByteBuffer m_buffer

data buffer

m_bytesCompleted

protected int m_bytesCompleted

The number of bytes processed by IO operation.

-1 if error occured or channel is closed

m_flgExactly

protected boolean m_flgExactly

This flag denotes that data needs to be written until buffer is empty.

See Also:

java.nio.ByteBuffer#remaning()

Method Detail

getBytesCompleted

public int getBytesCompleted()

Returns:

a number of bytes available after io operation was completed; -1 if exception or end-of-channel happened

getBuffer

public java.nio.ByteBuffer getBuffer()

Returns operations' data buffer.

Returns:

data buffer

remaining

public int remaining()

Tells the difference between a number of requested and processed bytes at present time.

Example 1: Requested to read n bytes, actually read was m, so bytesRemaining is n-m

Example 2: Requested to write n bytes, actually written was m, so bytesRemaining is n-m

See Also:

java.nio.ByteBuffer#remaning()

execute

protected boolean execute()

Specified by:

execute in class IOOperation

onComplete

public void onComplete()

Called when IO operation has completed - notifies protocol instance that write operation has completed.

See Also:

IOOperation.onComplete()