I have this enumerated value that I need to store. Its essentially a lookup code. However, each of the enumarated values has tacit (if that is the right word) properties based on its values.

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 ...

I've seen numerous examples over the web that show how to page through a large result set returned by a JPA query. I'm wondering why this works. From what I understand, sql queries are NOT required to ...

Community driven content discussing all aspects of software development from DevOps to design patterns. As developers migrate their old Java Persistence API applications to JPA 3, their progress is ...

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 ...