Hi, I have this 3-tier architecture in mind:
1. Persistence: Hibernate in its pure form (i.e. not using it as a JPA persistence provider.) 2. Business: Manager classes annotated as Stateless Session Beans (SLSB's). 3. Presentation: Wicket I thought I'd use Java Transaction API (JTA) using annotations on my SLSB methods. In other words, container managed persistence using EJB annotations. The persistence entities would more or less be pure structures without any logic, as the logic would reside in the business tier. >From the presentation tier, using Wicket, I'm wondering if any of you has any kind if smart model for this kind of architecture? I was thinking of if there is any good way to populate the model, see if things has changed (changed entity or deleted entity during user editing for example) so I may display warnings/errors, submit completed entity changes to the manager SLSB and such. I'm tempted at changing Java EE for Spring. But I need a site with high availability and scalability, which means a clustered solution with replication, load-balancing and fail-over. And I have no experience with Spring, I'm sure it's possible, but it might take a longer time for me if I'd use it. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
