DataNucleus supports persisting objects to JSON datastores (using the datanucleus-json plugin). Support for JSON is in its early stages and will be enhanced in future releases. If you wish to help out in this effort either by contributing or by sponsoring particular functionality please contact us via the DataNucleus Forum.

Datastore Connection

The following persistence properties will connect to JSON at a URL

datanucleus.ConnectionURL=json:http://www.mydomain.com/somepath/
datanucleus.ConnectionUserName=
datanucleus.ConnectionPassword=