Java Persistence with Spring Data and Hibernate

3 Domain models and metadata

This chapter covers

• Introducing the CaveatEmptor example application
• Implementing the domain model
• Examining object/relational mapping metadata options

The “Hello World” example in the previous chapter introduced you to Hibernate, Spring Data, and JPA, but it isn’t useful for understanding the requirements of real-world applications with complex data models. For the rest of the book, we’ll use a much more sophisticated example application—CaveatEmptor, an online auction system—to demonstrate JPA, Hibernate, and later Spring Data. (Caveat emptor means “Let the buyer beware.”)

Major new features in JPA 2

A JPA persistence provider now integrates automatically with a Bean Validation provider. When data is stored, ...