Hi all, I'm very new with GoogleAppEngine, and I cannot yet understand how to deal with Transactions and concurrency. I've got a servlet called by a queue task where I need to manipulate several kind of objects. I'm not able to use the Transactions, as I'm updating several objects not belonging to the same entity group. I'm facing a "org.datanucleus.exceptions.NucleusDataStoreException: Concurrent Modification" problem when trying to close my PersistenceManager object at the end of the doPost() method of the servlet.
Is there a known pattern to face with this problem? Thank you very much. Bye cghersi -- 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.
