now i have done it by part transaction. use case: Person buy three Telephone
update Person property(and other sub class property) -----------use transaction update three Telephone.person_id=person_id. ------------not use transaction thanks to all -- 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.
