JPA ORM Design Patterns

Question

dear all,

I need new design patterns in JPA/ORM instead of POJO/JDBC/DAO patterns. Is there any recommended link?

RGDS

Answer 1

In the examples I've seen, JPA doesn't fundamentally change design patterns for JEE, it's a standard implementation of persistence. You can (should, depending on your constraints?) still hide the persistence implementation behind a DAO layer - maybe the transition is a good test of whether your existing DAOs are doing a good job of hiding those implementation details.

There's an tutorial that does that on developerworks. There's also a discussion about whether JPA killed the DAOs on infoq that you might find of interest.