This project uses a municipal governance domain model (Mayors, Communes, Departments) to demonstrate various JPA concepts across 6 progressive lessons. Each part focuses on specific JPA features, ...

Hibernate ORM is a powerful object/relational mapping solution for Java, and makes it easy to develop persistence logic for applications, libraries, and frameworks. Hibernate implements JPA, the ...

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 ...

Microsoft Windows offers three power-off options: Sleep, Hibernate, and Shutdown. Shutdown closes all programs and turns off the PC completely. Hibernate turns off apps and services but retains what ...

Sleep is a power-saving state that allows a computer to quickly resume full-power operation (typically within several seconds) when you want to start working again. Putting your computer into the ...

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 ...

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 ...