This is basically a layer for the Object Bridge project that will allow you to use the JDO specs. This project may disappear if it's decided to join it with the OJB project, but for now, it will allow me and whoever else wants to help to get moving.
Lyophilizer helps developers create systems of JavaBeans without worrying about different persistent/transactional/secure back ends. It is evolving into JDO and currently supports JDBC, EJB and in-memory storage.
Butterfly is a simple Code Generator using XMI as the input and XSLT templates to generate any type of code. Several templates are provided including EJB, JDO and Struts. Users may use the templates, modify them or create new ones using XSL.
TogMap is a module for the CASE Tool Together which generates
XML-mapping-files for OR-Mappers. It takes an existing
object model, which you can augment by OR-specific markers, and produces an XML-mapping file. Currently only for Castor-JDO.
dnauditor is plugin project for JDO implementation Datanucleus. It is a solution to handle audit trail and temporal aspects of JDO. This is a place holder for incubating ideas and sharing code. Will be merged with Datanucleus.org when it gets stable.