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 * 
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 * Copyright 2002 - 2007 Adobe Systems Incorporated All Rights Reserved.
 * 
 * NOTICE: All information contained herein is, and remains the property of Adobe Systems Incorporated and its suppliers, if any. The intellectual and technical concepts contained herein are
 * proprietary to Adobe Systems Incorporated and its suppliers and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade secret or copyright law. Dissemination of
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package flex.messaging.messages;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectOutput;

import flex.messaging.io.ClassAlias;

/**
 * @exclude
 */
public class AsyncMessageExt extends AsyncMessage implements Externalizable, ClassAlias
{
    private static final long serialVersionUID = -5371460213241777011L;
    public static final String CLASS_ALIAS = "DSA";

    public AsyncMessageExt()
    {
        super();
    }

    public AsyncMessageExt(AsyncMessage message)
    {
        super();
        _message = message;
    }

    @Override
    public String getAlias()
    {
        return CLASS_ALIAS;
    }

    @Override
    public void writeExternal(ObjectOutput output) throws IOException
    {
        if (_message != null)
            _message.writeExternal(output);
        else
            super.writeExternal(output);
    }

    private AsyncMessage _message;
}