The JDO/DataNucleus object store enables domain objects to be persisted to relational as well as NoSQL databases. The object store is implemented using DataNucleus ORM using the JDO API. DataNucleus is the reference implementation for JDO.

This component guide discuss how to setup the framework to use the JDO/DataNucleus object store, how to configure the ORM, and also provides some examples on common use cases.