EclipseLink/UserGuide/JPA/Basic JPA Development

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• Configuration
• Caching
• Queries

Basic JPA Development

To develop a JPA project, you must be aware of the following items:

• JPA Configuration
• Mappings
• Caching
• Queries
• Transactions

Project development is a 3-step process.

Step 1 Define your persistence units in persistence.xml. About the persistence.xml file Specifying the persistence unit

Step 2 Annotate classes with @Entity, @Embeddable, and @MappedSuperClass and/or define classes in your mapping file (orm.xml). Configuring an entity EclipseLink extensions

Step 3 Configure your application with: javax.persistence.transactionType javax.persistence.jtaDataSource javax.persistence.nonJtaDataSource Application development Packaging and deployment

Version: 2.1.0
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