Chapter 7. Mapping collections and entity associations
In this chapter
- Mapping persistent collections
- Collections of basic and embeddable type
- Simple many-to-one and one-to-many entity associations
From our experience with the Hibernate user community, the first thing many developers try to do when they begin using Hibernate is to map a parent/children relationship. This is usually the first time they encounter collections. It’s also the first time they have to think about the differences between entities and value types, or get lost in the complexity of ORM.
Managing the associations between classes and the relationships between tables is at the heart of ORM. Most of the difficult problems involved in implementing an ORM solution relate ...