javawebparts.listener
Class SessionLimiterListener

java.lang.Object
  |
  +--javawebparts.listener.SessionLimiterListener

All Implemented Interfaces:

java.util.EventListener, javax.servlet.http.HttpSessionListener

public class SessionLimiterListener

extends java.lang.Object

implements javax.servlet.http.HttpSessionListener

This HttpSessionListener has to be registered in order to use the session limiting facility (see javawebparts.filter.SessionLimiterFilter).

The listener is essential because when session are invalidated (by the application code or they expire) we have to unregister them from our registration of allowed sessions.

Example configuration in web.xml:

<listener>
<listener-class> javawebparts.listener.SessionLimiterListener</listener-class>
</listener>

Author:

Tamas Szabo

Field Summary

private static org.apache.commons.logging.Log

log Log instance.

Constructor Summary

SessionLimiterListener()

Method Summary

void	sessionCreated(javax.servlet.http.HttpSessionEvent sevent) Unregistering the session when it is destroyed.
void	sessionDestroyed(javax.servlet.http.HttpSessionEvent sevent) Unregistering the session when it is destroyed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

private static org.apache.commons.logging.Log log

Log instance.

Constructor Detail

SessionLimiterListener

public SessionLimiterListener()

Method Detail

sessionCreated

public void sessionCreated(javax.servlet.http.HttpSessionEvent sevent)

Unregistering the session when it is destroyed.

Specified by:

sessionCreated in interface javax.servlet.http.HttpSessionListener

Parameters:

sevent - HttpSessionEvent.

sessionDestroyed

public void sessionDestroyed(javax.servlet.http.HttpSessionEvent sevent)

Unregistering the session when it is destroyed.

Specified by:

sessionDestroyed in interface javax.servlet.http.HttpSessionListener

Parameters:

sevent - HttpSessionEvent.