writerequest.java

mina是以Java实现的一个开源的网络程序框架

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 *  Licensed to the Apache Software Foundation (ASF) under one
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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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 *  KIND, either express or implied.  See the License for the
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package org.apache.mina.core.write;

import java.net.SocketAddress;

import org.apache.mina.core.filterchain.IoFilter;
import org.apache.mina.core.future.WriteFuture;
import org.apache.mina.core.session.IoSession;

/**
 * Represents write request fired by {@link IoSession#write(Object)}.
 *
 * @author The Apache MINA Project ([e-mail])
 * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (Thu, 26 Jun 2008) $
 */
public interface WriteRequest {
    /**
     * Returns the {@link WriteRequest} which was requested originally,
     * which is not transformed by any {@link IoFilter}.
     */
    WriteRequest getOriginalRequest();

    /**
     * Returns {@link WriteFuture} that is associated with this write request.
     */
    WriteFuture getFuture();
    
    /**
     * Returns a message object to be written.
     */
    Object getMessage();

    /**
     * Returns the destination of this write request.
     *
     * @return <tt>null</tt> for the default destination
     */
    SocketAddress getDestination();
}