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SCEA EE 5.0 , part II and J2EE Patterns

 
Morten Franorge
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Hi all,

When I did part 2 of SCEA i march, I actually based it on Java EE 5.0. The difficult part when doing this is that many of the J2EE Core Patterns are obsolete as they were created to make the EJB spec easier to use. With the new ease of use features, there applicability is limited.

I feel I suffered in the scoring as I didn't use many J2EE patterns.

So it will be interesting to see what patterns emerges for JEE 5.0, and which criterias will be used when grading part 2 for the new exam.
 
Frank Kuepper
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Hi Morten,

I think, most of the exisiting j2EE patterns still hold value for JEE 5. For example all presentation-tier patterns are still valuable and applicable. And even with a most sophisticated persistance manager, DAO still may be needed to tune data-access to the max - especially when using the fast lane reader pattern.

Greetings,
Frank
 
Morten Franorge
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Originally posted by Frank Kuepper:
Hi Morten,

I think, most of the exisiting j2EE patterns still hold value for JEE 5. For example all presentation-tier patterns are still valuable and applicable. And even with a most sophisticated persistance manager, DAO still may be needed to tune data-access to the max - especially when using the fast lane reader pattern.


With Java EE 5, JSF is introduced, so the patterns should probably be updated for presentetion-tier as well. As for DAOs, the EJB 3 specs doesn't allow injection of an EntityManager into anything else than a EJB...IMO that makes DAO awkward to work with. You have to pass the EM as a param.

Plumbing patterns are very close to obsolete...
 
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