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Stateful session bean -- clarification urgent

veena madhukar
Ranch Hand

Joined: Apr 28, 2006
Posts: 86
Stateful session beans are suggested to be used over Stateless session beans in the following context:

"The bean needs to hold information about the client across method invocations. "

1> Can't the information be stored in the web tier? When the web tier can store the information how does session bean get justified to be used.

2> Also, what kind of information about the client, can somebody give an example. I know the standard example quoted is Shopping cart. But, i am still not able to appreciate the use of stateful session bean. can anybody point me to any web sites or share information to help me understand better.
Maris Orbidans
Ranch Hand

Joined: Mar 08, 2004
Posts: 149
But, i am still not able to appreciate the use of stateful session bean. can anybody point me to any web sites or share information to help me understand better.


http://java.sun.com/j2ee/1.4/docs/tutorial/doc/EJBConcepts3.html#wp79790
http://www.theserverside.com/tt/books/wiley/masteringEJB3/index.tss
 
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subject: Stateful session bean -- clarification urgent