Friday, October 23, 2009

An update on Java Persistence API 2.0

The Java™ Persistence API (JPA) was first introduced in Java Platform Enterprise Edition (Java EE) 5 as part of the Enterprise JavaBean™ (EJB) 3.0 family of specifications Since that time, JPA 1.0 has proven to be a very popular persistence framework. Even though this first specification was very complete and functional, there is always room for improvement. The next iteration of the JPA specification (JPA 2.0) is currently under development via JSR 317.

The JPA expert group is working hard to finalize the JPA 2.0 specification. Public Final Draft #2 of the specification was recently made available, and the final JPA 2.0 specification is planned to be available by November 16, 2009.

A single Comment Line column cannot do justice to all the new features in the JPA 2.0 specification. Instead, brief introductions will be made via this article followed by information to help you go experience these features firsthand via Apache’s OpenJPA project.

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