Babar,
This functionality used to be part of HttpSessionContext, and you could do
session.getSessionContext().getSession("name"). That whole class is now deprecated as
it was not a scalable solution.
You can achieve something similar (with the same scalability issues, too) by
registering session references at application scope (seems a bit counterintuitive, I
know). You would have to be careful about creating a memory leak situation (i.e. you
need to remove the session references from application scope when the sessions
expire). I would propose something along these lines [disclaimer--I haven't tried this
code]:
public class Watchdog implements HttpSessionBindingListener {
private ServletContext application;
public Watchdog(ServletContext application) {
this.application = application;
}
public void valueBound(HttpSessionBindingEvent e) {
application.setAttribute(e.getSession().getId(), e.getSession());
}
public void valueUnbound(HttpSessionBindingEvent e) {
application.removeAttribute(e.getSession().getId());
}
}
And in your servlet, register the session at some convenient point:
session.putValue("watchdog", new Watchdog(getServletContext()));
For any session that the above line has been called for, you can look up a session as
an application scope variable:
HttpSession session = (HttpSession) getServletContext().getAttribute(sessionID);
The scalability issue is that you cannot register your sessions beyond the current
application scope in which they are running, so servlets running under a separate
application scopes won't be able to access each other's sessions.
Wes
David Mossakowski wrote:
> Check the API and see there's no way to do it. getValue only gets named value that
> has been put into session before. The session itself is handed by the engine.
>
> dav.e
>
> Babar Bhutta wrote:
>
> > Hi Everybody,
> > I am looking for a way to get the value of my session using the
> > session id instead of session. The reason I am trying to do this, is because
> > sometime I couldn't find my session which I stored in some Servlet. I tried
> > to use the method getValue("sessionName") but it returns null. Kindly help
> > me out in the regard! I am using IBM websphere in Visual Age Enterprise
> > Edition 2.0
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