Hi Dragomir,
When the session is invalidated, the session must unbind all the attributes - so if
you've registered an attribute as
a HttpSessionBindingListener it should get the notification.
Check out the javadoc:
http://java.sun.com/products/servlet/2.2/javadoc/javax/servlet/http/HttpSession.html#invalidate()
So, in short the answer is yes and you get the hook in to clean up on a session
timeout.
- Danny
>
> An object that I store in my session has a persistent copy in
> my database. Depending on object's state, the persistent
> copy has to be removed from the database when the object
> is removed from the session.
>
> From the API I understand that the object has to
> implement HttpSessionBindingListener and valueUnbound method
> that does clean-up.
>
> What I am not sure if this method is executed when
> sesion expires and the servlet engine destroys the session..
> In other words, the user does not complete the procedure, and the object
> stays stored in the session until the session expires.
> Will my valueUnbound be exexuted?
Danny Coward
Servlet Specification & Web Java
Java Software Group, Sun Microsystems
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