Hi Philip, IdGeneratorStrategy.SEQUENCE support is implemented on top of DatastoreService.allocateIds(), which is itself the mechanism that the datastore uses internally to assign ids. So, all properties of datastore id allocation apply to SEQUENCE. There is a lot of good information about these properties in this thread: http://groups.google.com/group/google-appengine/browse_thread/thread/dec83c2dbd9542e4
But in short, sequences are guaranteed to be unique but not monotically increasing. Hope this helps, Max On Mon, Dec 21, 2009 at 12:04 AM, Philip Tucker <ptuc...@gmail.com> wrote: > I'm using IdGeneratorStrategy.SEQUENCE for the primary key of a table, > but it appears AppEngine bounces between 2 different sequence > generators as I create new entries. IDs are unique, but not > monotonically increasing. It's possible I've coded something wrong, > but I'm oretty sure this is a bug. > > -- > > 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<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > > -- 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.
