ObjectDB version 2.5.4

Released on 2014-01-05 (see other available releases).

Note: A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence agreement

Changes in ObjectDB 2.5.4:

  • Added empty implementation of new JPA 2.1 methods.
  • Implemented new JPA 2.1 EntityManagerFactory methods: createEntityManager, unwrap.
  • Improved retrieving persistent string fields by using "".intern() for empty strings.
  • Fixed a bug in queries on composed embedded primary key (issue #1301).

See the full change log.

ObjectDB with Maven

To use ObjectDB in your Java Maven project merge the following repositpory and dependencies into your pom.xml file:

            <name>ObjectDB Repository</name>


ObjectDB 2.5.4 Maven files:

objectdb-2.5.4.jar objectdb-2.5.4.jar.md5 objectdb-2.5.4.jar.sha1
objectdb-2.5.4.pom objectdb-2.5.4.pom.md5 objectdb-2.5.4.pom.sha1


ObjectDB Development Kit

The ObjectDB Development Kit includes:

  • The ObjectDB runtime JAR (available also on Maven).
  • The GUI ObjectDB Explorer.
  • Sample ObjectDB databases that you can open in the Explorer.
  • Command line tools for running the ObjectDB Server and the ObjectDB Enhancer.
  • Tutorial projects in Maven format for opening and running in your favourite IDE.
  • A sample objectdb.conf configuration file.
  • Source code of the JPA and JDO APIs.
  • JavaDoc of the JPA and JDO APIs.
  • The complete ObjectDB Manual in PDF format.