Java™ How To Program (Early Objects), Tenth Edition

29.2.1 Generated Entity Classes

In Section 29.3.5, you’ll use the NetBeans Entity Classes from Database... option to add to your project classes that represent the database tables (as you’ll see in Section 29.3.5). Together, these classes and the corresponding settings are known as a persistence unit. The discussion in this section is based on the books database that we introduced in Section 24.3.

For the books database, the NetBeans IDE’s object-relational mapping tools create two Serializable classes in the data model—Authors and Titles. Each class—known as an entity class—represents the corresponding table in the database and objects of these classes—known as entities—represent the rows in the corresponding tables. Each of these classes contains: ...