[JBoss Seam] - Seam philosophy and scalability...
by annbasso
Hi there,
I am evaluating Seam and trying to get the examples running. (Quite an exercise to get Seam 1.2.1 working on JBoss 4.2.1!!!...put this module in, remove that jar, tweak this tweak that...).
In booking example it says, "Keeping conversational state in memory in the middle tier is a great way to improve your application's scalability." Further, it says that the search functionality is backed by stateful session bean and that bean caches the results of the search.
Now, my question is this:
We have an app that will be accessed by about 50000 people, about 1000 will be simultaneous users hitting the server. How well can this approach of creating stateful session beans scale? From what we understand is stateful SBs don't scale that well and on top of it Seam suggests to caches such data is SBs. Some performance experts suggest to not cache such data at all and rely on database chaching.
Any thoughts on this?
(BTW, password rules for registering on this site suck big time!!! What is it a credit card processing company???)
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18 years, 7 months
[JBoss jBPM] - Re: How to take a decision in java code
by Jean-LucT
Sorry Ronald but I still don't get your point I went one more time on the Node decision without more understanding on the subject.
They talk about DecisionHandler but I've got ClassCastException when using it.
>From documentation about graph flow, I've understood that event Node-Leave is triggered when doing a node.leave, thus now I understand why I've got a loop.
>From my understanding about the javadoc for token.leaveNode, it is not possible to change process flow from an ActionHandler attached to an event.
I've noticed that when I add an action either Enter, Leave or Before Signal, my ActionHandler is always attached on an event.
I don't see any way to add an ActionHandler not attached to an event.
You're talking about testcase in Source, I've not seen any testcase in my directory C:\jbpm-jpdl-3.2.1\src. I'm sure I missed something, but you will be very helpful to me if you can provide me with the path of the testcase you are talking about.
Thanks
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18 years, 7 months