Stateful Session EJB question

["Brian Lee" <brian_a_lee@hotmail.com>]

I was just reading on sun's site about maintaining session state 
(http://java.sun.com/blueprints/qanda/app_arch/index.html).

They talked about using stateful session EJBs to maintain a session state 
because then the session data wouldn't be lost if the web container crashed.

My thinking is a little hosed up...

How does the stateful session ejb get bound to a user session? So when a 
client does a call to the ejb container to get a stateful ejb, what 
garauntees that they get the same stateful session bean as before?

Any clarity is appreciated.

Thanks,
BAL





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