Fast Object Database for Java - with JPA/JDO support

ObjectDB 2.4.5

Released on 2012-12-13 (see other available releases).

Note: A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence agreement

Changes in ObjectDB 2.4.5:

  • Added support of lazy loading of mapped by (inverse) singular relationships (issue #768).
  • Added support for using ObjectDB with TomEE / OpenEJB.
  • Improved loading of eager mapped by (inverse) relationships (issue #769).
  • Improved performance of database file extending.
  • Fixed a bug in ignoring global cascade persist in an ORM file.
  • Fixed a NullPointerException during query execution (issue #978).
  • Fixed a class loading issue during automatic class scanning.
  • Fixed a Doctor deadlock.
  • Fixed multithreading problems when using new types simultaneously (issue #950).
  • Fixed a problem of EntityManager auto closing.
  • Fixed ArrayIndexOutOfBounds on using a no arg function in criteria queries (issue #946).
  • Fixed activation when there is no MAC address.
  • Fixed an update query error message on an attempt to update a collection (issue #943).
  • Fixed a NullPointerException during persistence field access.
  • Fixed a NullPointerException in query execution.

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 2.4.5 Maven files:

objectdb-2.4.5.jar objectdb-2.4.5.jar.md5 objectdb-2.4.5.jar.sha1
objectdb-2.4.5.pom objectdb-2.4.5.pom.md5 objectdb-2.4.5.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.

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support