There aren't any books on JDO2+ AFAIK. Best place to learn about it are Apache JDO, who manage the API : http://db.apache.org/jdo/
DataNucleus docs (all pages under "JDO API" menu) : http://www.datanucleus.org/products/accessplatform_3_0/jdo/api.html JDO spec (linked from the above two places). Free JDO1 book (PDF) by Robin Roos : http://datanucleus.svn.sourceforge.net/viewvc/datanucleus/documentation/reference/JavaDataObjects-RobinRoos-1.0.pdf?revision=14005&view=markup -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
