Hi, I'm trying to get GAE to integrate with OpenJPA (instead of the built- in DataNucleus) for various reasons. From the Setting Up JPA section on the Using JPA with GAE page [1], it sounded like this might be doable by replacing the DataNucleus binaries with the OpenJPA binaries in the war/WEB-INF/lib directory and doing the necessary enhancement steps (also required by OpenJPA).
But, I have not had any luck. The DataNucleus version in GAE seems to be limited to JPA 1.0 functionality, although I found some references to the JPA 2.0 APIs... So, I have removed all 3 jars related to DataNucleus along with the Geronimo spec jars, and inserted the openjpa-all jar. I get a little further, but now I am hitting classloader issues. I'm working with the simple Guestbook sample. I also just noticed that Hibernate is not compatible with GAE either, so at least we're in good company... :-) Are there any plans to open up GAE to alternate JPA providers? Is there anybody interested in the GAE development community to help with this endeavor? I like the GAE development and deployment environment, but I would like to use OpenJPA instead of DataNucleus. (I can provide more details (stack traces, test projects, etc) if I get some indication that there is interest in this exercise.) Thanks for any information, Kevin Apache OpenJPA PMC [1] http://code.google.com/appengine/docs/java/datastore/usingjpa.html#Setting_Up_JPA -- 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-j...@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.
