listener.java

精通Jboss——Ejb和Web Services开发精解的随书源代码

/**
 * Listener.java Created on 2003-12-7
 *
 */
package com.liuyang.xmessenger;

import com.liuyang.xmessenger.device.OutputDevice;

/**
 * @author liuyang
 *
 */
public abstract class Listener {
	public abstract void onMessage();
	public abstract OutputDevice getOutputDevice();
	public abstract void setOutputDevice(OutputDevice charscreen);	
}