The key to successful Hibernate transaction management is the JPA EntityManager. It's the only JPA component that can start transactions, commit transactions and hook into Hibernate transactions that ...

I'm a big fan of Hibernate and JPA, and I've worked pretty hard to try and make the technology as accessible and as easy to understand as I possibly can. One of the biggest problems I find people have ...

Every JPA entity has a primary key, but some entities have more than one value as their primary key. In this case, you need to use a composite key. This Java tip introduces you to using composite keys ...

Inheritance is a common pattern in object-oriented programming, but it’s not easily replicated in a database. This Java tip shows you how to model inheritance relationships in JPA with Hibernate.

Hey all -- I'm trying to assemble some stuff into a web-app using JSP and JPA/Hibernate. My problem lies with object identity in the database and in the JVM. I've looked at several tutorials and ...