If you use "pure" long primary key than it can impact transactional mechanism which is related to so called "entity groups" identified by primary key values.
So before designing your entity classes read through: http://code.google.com/intl/pl/appengine/docs/java/datastore/transactions.html -- 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
