TheServerSide

How JPA EntityManager handles Hibernate transaction management

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 ...
TheServerSide

Migrating JDBC Data Access Objects to use EJB3

Persistence is one of the greatest challenges for building applications. There are many options for building persistence layers. Data Access Objects (DAO) is a popular design pattern for building the ...
InfoWorld

Java persistence with JPA and Hibernate: Persisting data to a database

You’ll also get started with JPA Query Language (JPQL) and use it to execute a few simple database operations on the example application. The complete source code for the example application can be ...
InfoWorld

Java persistence with JPA and Hibernate: Entities and relationships

The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how Java ...