Once you have enabled JPA or Hibernate support and created persistence units or session factories, you can define mapping between the Java objects and data sources.
- In the Persistence tool window, expand the desired module node.
- Right-click the desired persistence unit or session factory to generate mappings for, and choose on the context menu.
- On the submenu, select the desired schema. You can opt to generate persistence mapping by:
You can create a mapping file in the ER diagram. To do that, just right-click the diagram background, choose on the context menu, and populate this file in the editor as required.