Up to date, JPA compliant GenericDAO Implementation

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Up to date, JPA compliant GenericDAO Implementation

I read this article:

http://www.ibm.com/developerworks/java/library/j-genericdao.html

several times and believe I understand what it is saying. However, it is 4 years old and I have a JPA compliant Java application to contend with. In addition, I see that there is a JPATemplate in Spring that has some good functionality, but the Spring documentation says it is already deprecated!

Can anybody point me to a solid, modern, JPA compliant, Spring based, working example of a GenericDAOImpl that proxies an Interface to provide generic finder execution?

+1 A:

I've created a generic DAO mixing different approaches that I shared on SO in this question. I use these 2 approaches: DDD: The Generic Repository and JPA implementation patterns: Data Access Objects.

Please feel free to comment/edit if you think it can be improved.

rochb 2010-05-21 06:57:05

Its a start -- thanks for the help. For me, an important aspect of it is the ability for a single DAO implementation to execute any named query via a set of DAO interfaces. The IBM article uses AOP, but I am working on an approach that uses a proxy object to implement the defined interfaces without AOP.

HDave 2010-05-21 07:23:28