There is no need to maintain any kind of "open session", even if you are using proxies (OJB will care about opening a database session to load object on demand)... I never used OJB + EJB, so I can' tell you how this could work in a distributed environment.
But with JSP accessing local datasources, I had no problems.
Copying object to other objects/collections could lead into unecessary overhead.
I expect this helps.
Edson Richter
Ray escreveu:
Hi there ... :-)
I'm involved in a small project to convert from a
Hibernate backend, to OJB.
The presentation tier uses Struts and JSTL to render pages.
I was wondering how you OJB handles collections attached to objects, that need to be rendered in the JSP pages. For example, if I have an Order object that contains a collection of OrderLines, and I want to create a page to display the whole order, then what is the bst way to handle this?
Is it best to copy the whole Order and OrderLines into some kind of VO, and then send that to the page? Or do you use the Hibernate approach of leaving the session open for the whole request cycle, so that the JSTL on the page, can access the collection directly from the Order object?
Hope that makes sense ... :-)
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