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 ...
TheServerSide

3 ways to have JPA and Hibernate create tables in a database

Test-driven software must often drop, create and populate database tables with records before it runs a suite of unit tests. For this reason, the ability to have JPA frameworks -- such as EclipseLink ...
TheServerSide

The JPA 2.0 EntityManager vs. the Hibernate Session: Which one to use?

It's the age-old question that almost all enterprise data architects have to ask themselves at some point in time: When using the Hibernate ORM framework with the Java Persistence API (JPA), should ...
InfoWorld

Composite keys in JPA and Hibernate

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 ...