[jboss-user] [EJB 3.0] - design scenario, session bean usage
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Sun Jul 8 09:59:28 EDT 2007
Using swing client talks to ejb 3 server.
The swing UI consists of 2 major panels: menu tree nodes panel and content panel, which display the detail for the selected sub menu nodes.
The server provides ex. 3 tpyes of services (thus the swing UI has 3 sub menu), using session bean talks with entity beans.
some of the requirements are:
session time out is configurable on the fly (by admin role), every content panel should be able to auto-refresh every 2 minute.
As to the design scenario, I'm wondering:
1. Which is better in the following designs:
A. one remote session bean per service, thus there are 3 session beans;
B. a remote session bean talks with 3 local session beans, thus totally 4 session beans
2. using stateless or stateful bean(to satisfy time out), why, how?
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