> Q2. is mixing JPA and JDO ok? ie. JPA entity and JDO seems to work for me.
As per the DataNucleus docs you can define persistence with JPA metadata and persist using JDO, or define persistence using JDO metadata and persist using JPA. You definitely won't find that flexibility in any other JPA/JDO implementation. > Q3.how does the collection equality filter work in app engine? I have > not found any docs to explain the 'voodoo' like behaviour. I assume their interpretation of "field == collectionValue" is the same as "collectionValue.contains(field)" i.e non-standard JDOQL. When they support valid JDOQL syntax (the latter expression, in their next release IIRC) you would be strongly recommended to change to use that rather than this weirdness -- 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=.
