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/*
* Copyright (c) 2011 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.network.kernel;
import java.nio.ByteBuffer;
/**
* A single channel remote connection allowing the sending
* and receiving of data. As opposed to the Kernel, this will
* only ever receive data from one Endpoint and so bypasses
* the envelope wrapping.
*
* @version $Revision: 7012 $
* @author Paul Speed
*/
public interface Connector
{
/**
* Returns true if this connector is currently connected.
*/
public boolean isConnected();
/**
* Closes the connection. Any subsequent attempts to read
* or write will fail with an exception.
*/
public void close();
/**
* Returns true if there is currently data available for
* reading. Some connector implementations may not be able
* to answer this question accurately and will always return
* false.
*/
public boolean available();
/**
* Reads a chunk of data from the connection, blocking if
* there is no data available. The buffer may only be valid
* until the next read() call is made. Callers should copy
* the data if they need it for longer than that.
*
* @return The data read or null if there is no more data
* because the connection is closed.
*/
public ByteBuffer read();
/**
* Writes a chunk of data to the connection from data.position()
* to data.limit().
*/
public void write( ByteBuffer data );
}
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