- EJB 3 Developer Guide
- Michael Sikora
- 56字
- 2021-07-02 11:34:54
Chapter 3. Entities
Entities are classes that need to be persisted, usually in a relational database. In this chapter we cover the following topics:
- EJB 3 entities
- Java persistence API
- Mapping an entity to a database table
- Metadata defaults
- Introduction to the entity manager
- Packaging and deploying entities
- Generating primary keys
- Overriding metadata defaults
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