How does session bean state replicate?

I can't figure out how state of statefull session bean gets replicated for clustering. Can any one explain how this works?
          Lets say we have two copies of the same bean A and B where B is suppose to be activated in case of a failover. If A has commited a transaction, how does that transaction get carried to B so it can update its status? Does a change to the in running state of bean (one that is not persisted) of the session bean gets replicated also?
          Thanks for you help,
          Daryoush Mehrtash
          

Hi,
I am not clear with ur query..
What I understood from ur query is that, u are trying to put the session ejb in the HttpSession Object for some use ahead in future?
If this is the case, then I think are approach is not correct.
StatefulSession beans are meant for this purpose, i.e they will be maintaining the client session. So use the same using the JndiLookup of the HomeInterface and the getting the Home reference and calling the businessmethods
sameer

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