EclipseLink/Examples/JPA

The following examples are provided to assist developers with their adoption and usage of EclipseLink's JPA and native ORM functionality.

Note: Any examples listed without links are place-holders. If there is an example you would like to see please add it to the list.

See Developing JPA Projects in the EclipseLink User's Guide for details.

EclipseLink JPA Examples

• Basic
  • How to configure
  • Using the EntityManager API
  • How to use outside of the container

• Diagnostics
  • How to configure logging
  • How to validate metadata against the database

• Mapping
  • How to use an EclipseLink ORM.XML Mapping file
  • How to configure primary key generation
  • How to define inheritance

• Querying
  • How to page query results
  • How to optimize graph loading
  • How to optimize searching using data projections
  • How to use pessimistic locking

• Rich Client Platform (RCP)
  • Using EclipseLink JPA in RCP

• Spring JPA
  • Using EclipseLink JPA within Spring

• Advanced
  • Dynamic JPA Example: Example extension for JPA without Java classes and XML

Tutorials

• Tutorial: Use Eclipse WTP to Build, Deploy and Run a Web Application using EclipseLink JPA on...

J2EE Server	Version	Capabilites, Support, Issues
Oracle OC4J	10.1.3 / 11.1.1	-
RedHat JBoss	4.2.2	No Weaving support because of [| JIRA-572]
SUN AS	-	-
IBM WebSphere	-	-
IBM WebSphere CE / Apache Jeronimo	-	-
BEA WebLogic	-	-

• Tutorial: Build a Web Application (JSF) Using JPA

Migrating to EclipseLink

These how-to's focus on migrating from previous editions of TopLink and other JPA providers to using EclipseLink.

• How to migrate from TopLink Essentials
• How to migrate from Oracle TopLink JPA (11gR1)
• How to migrate from Oracle TopLink's native ORM

Database Platform Extensions

• Oracle: Spatial, VPD/OLS, TIMESTAMP, XDB

Using Native ORM through JPA Examples

These examples focus on using EclipseLink JPA with native extensions

• How to configure
• How to use native metadata
• How to access EclipseLink's native API through JPA
• How to optimize queries using batch and join reading

Native Object-Relational Examples

These examples focus on the usage of EclipseLink's native object-relational APIs and meta-data

• Basic Usage
  • Sessions
  • Queries
  • Transactions
• Extended Database Features
  • How to handle nonJDBC arguments to Oracle Stored Procedures
  • How to use Oracle Spatial - TBD
  • How to do pagination - TBD