nullfilter.java

来自「银行项目为后台ｓｏｃｋｅｔ通信写的程序」· Java 代码 · 共 57 行

/****************************************************************************
 * Package		: com.ecSolutions.ecAppServer.server.filter
 * File			: NullFilter.java
 * Create Date  : 2007-7-20
 * Author		: Steven Chen
 * 
 * Copyright(C) 2006 ecSolutions(shanghai) Co.,Limited.All Rights Reserved.
 *			
 ***************************************************************************/
package com.ecSolutions.ecAppServer.server.filter;

import com.ecSolutions.ecAppServer.server.Packet;
import com.ecSolutions.ecAppServer.server.SessionFilter;
import com.ecSolutions.ecAppServer.server.SessionFilterChain;

/**
 * Null filter. Null-Object pattern.
 * 
 * @author Steven Chen
 * @version $Id: NullFilter.java,v 1.2 2007/07/26 03:24:37 stevenchen Exp $
 */
public class NullFilter implements SessionFilter {

    public void exceptionCaught(SessionFilterChain filterChain, Throwable cause) {
    }

    public void packetReceived(SessionFilterChain filterChain, Packet packet)
            throws Exception {
    }

    public void objectReceived(SessionFilterChain filterChain, Object obj)
            throws Exception {
    }

    public void packetSend(SessionFilterChain filterChain, Packet packet)
            throws Exception {
    }

    public void packetSent(SessionFilterChain filterChain, Packet packet)
            throws Exception {
    }

    public void objectSent(SessionFilterChain filterChain, Object obj)
            throws Exception {
    }

    public void sessionClosed(SessionFilterChain filterChain) throws Exception {
    }

    public void sessionStarted(SessionFilterChain filterChain) throws Exception {
    }

    public void sessionTimeout(SessionFilterChain filterChain) throws Exception {
    }

}