If you have session persistence enabled (session.persistence=true), which is
the default value, then when the JRun server is stopped all active sessions
are not destroyed, but persisted. When the server starts back up they are
restored to an active state where they can be reused or eventually timed
out. You can find more info at
http://www.allaire.com/handlers/index.cfm?ID=17454&Method=Full.
If you want all active sessions to be destroyed when the server is shut
down, set session.persistence=false.
BTW, the Servlet 2.3 specification will introduce Application Lifecycle
Events which will accommodate exactly what you are trying to do. With this
new API you can create a HttpSessionListener which will receive events when
a session is created and destroyed. For more info, see Chapter 10 of the 2.3
proposed final draft of the spec at http://java.sun.com/products/servlets.
Hope this helps,
Karl Moss
Allaire, Corp.
-----Original Message-----
From: Cristian Satnic [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 4:21 PM
To: JRun-Talk
Subject: tracking sessions with HttpSessionBindingListener
I am trying to use the HttpSessionBindingListener interface to track
sessions which are created or destroyed in jrun. This is useful in keeping
track of logged in users for an app.
As you know, this interface defines two functions, valueBound and
valueUnbound, which are called when an object that implements
HttpSessionBindingListener is added or removed from a session.
It works fine (especially the valueUnbound part) as long as the session is
invalidated or timed out. But, if jrun is stopped or restarted,
valueUnbound is not called anymore. So, any sessions that would still exist
at the time of the restart would die without letting the tracking object
know about it.
Should jrun call valueUnbound when it is stopped? I am not too familiar
with the servlet 2.2 spec - is it up to the app. server providers to decide
what to do in this case? The way it is now, it is only 70-80% useful.
There are cases (restart) which don't allow me to clean up.
Thanks.
Cristian
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