javax.servlet.http
Interface  HttpSessionAttributeListener
- public abstract interface HttpSessionAttributeListener- extends java.util.EventListener
This listener interface can be implemented in order to
 get notifications of changes to the attribute lists of sessions within
 this web application.
- Since: 
- v 2.3
 
attributeAdded
public void attributeAdded(HttpSessionBindingEvent se)
- Notification that an attribute has been added to a session. Called after the attribute is added.- 
 
attributeRemoved
public void attributeRemoved(HttpSessionBindingEvent se)
- Notification that an attribute has been removed from a session. Called after the attribute is removed.- 
 
attributeReplaced
public void attributeReplaced(HttpSessionBindingEvent se)
- Notification that an attribute has been replaced in a session. Called after the attribute is replaced.-