This document describes how to add JPA capabilities to a MyEclipse project by using the JPA wizard to automatically generate a persistence.xml file and entity classes from database tables. The user specifies a data source, selects tables for reverse engineering, chooses code generation options like package names, and the wizard generates entity classes and DAOs with CRUD methods to interact with the database through JPA. If the database schema changes later, the generated code will need to be updated.

1. JPA Code Generation via MyEclipse Albert Guo [email_address]

2. Add JPA Capabilities to your MyEclipse Project

4. Specify datasource

5. JPA Wizard will generate persistence.xml automatically

6. Change view to MyEclipse Database Explorer

7. Selected specified table to do code generation

8. Click JPA Reverse Engineering

9. Choose the destination for code generation and its package name Generate entities first and update entities into persistence.xml simultaneously

10. Choose the destination for code generation and its package name Generate DAOs (Data Access Object)

11. Artifacts It will generate CRUD in DAOs

12. If schema changes…