Apache ObJectRelationalBridge (OJB) moved into the Attic in January 2011. Apache OJB was an Object/Relational mapping tool that allowed transparent persistence for Java Objects against relational databases.

The website, downloads and issue tracker all remain open, though the issue tracker is read-only. The user mailing list has been closed down, but old posts can be browsed in the mail archives. See the website at http://db.apache.org/ojb for more information on OJB.

If you are looking for a project to use in place of OJB, implementations of the standards Java Data Objects (JDO) and Java Persistence API (JPA) may be good starting points. The Apache Software Foundation hosts the following alternatives:

As with any project in the Attic - if you should choose to fork OJB outside of Apache, please let us know so we can link to your project.

Archived versions of OJB may be downloaded from the Apache Archives.