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Do the J2EE still have relevance?

 
Nilo Rosa
Greenhorn
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With EJB 3, do we still have to use the old J2EE patterns in the SCEA assignement?

More speficically, the front controller, service locator, business delegate and DAO.
Can we just use JSF, dependency injection and JPA?

I was looking at the example projects from Epractize and they all use the old patterns. But it's an old program, so...
 
Dmitri Ericsson
Ranch Hand
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In most cases we can use new technologies, but when there are some restrictions (legacy systems, performance requirements etc) If you've done the first part you are certainly familiar with those questions where JSF/EJB3 is a wrong answer.

What comes to patterns, you may not use them all, but for an exam you should know all the patterns and in which cases are they applied.
 
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