I think that the only way to do this is to have both of your instances in the same entity group.
So, even though each instance will have no (direct) reference to each other, they will need to share an entity ancestor (which will ensure that your instances are in the same entity group (the same entity group as the common ancestor)). -- 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.
