JDO is being developed as a Java Specification Request in the Java Community Process. The original JDO 1.0 is JSR-12 and the current JDO 3.2 is JSR-243. The Apache JDO project is focused on building the JDO API and the TCK for compatibility testing of JDO implementations.

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The Apache JDO project is focused on building the JDO API and the TCK for compatibility testing of JDO implementations. Commercial and open source implementations of JDO are available for relational databases, object databases, and file systems.

To develop your own code to use or implement JDO, you can use the links below to download Apache JDO from an official ASF download site. If you are using Maven, you can declare a dependency using the instructions below.

Apache JDO project. Contribute to apache/db-jdo development by creating an account on GitHub.

The Java Data Objects (JDO) API is a standard interface-based Java model abstraction of persistence, developed under the auspices of the Java Community Process.

JDO persistent objects are ordinary Java programming language classes (POJOs); there is no requirement for them to implement certain interfaces or extend from special classes.

Learn how to use the Java Data Objects (JDO) - designed for persisting object-oriented data into any database.

Commercial and open source implementations of JDO are available for relational databases, object databases, and file systems. JDO is being developed as a Java Specification Request in the Java Community Process.