mylistener.java

《Java与模式》一书的源代码

package com.javapatterns.servlet.sessionlistener;

import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionAttributeListener;

public final class MyListener implements HttpSessionAttributeListener
{
    /** This method is called when an attribute 　is added to a session. */
    public void attributeAdded(HttpSessionBindingEvent sbe)
    {
    }

    /** This method is called when an attribute is removed from a session. */
    public void attributeRemoved(HttpSessionBindingEvent sbe)
    {
    }

    /** This method is invoked when an attibute is replaced in a session. */
    public void attributeReplaced(HttpSessionBindingEvent sbe)
    {
    }
}