Where are you reading the definition of the contract? On Mon, Dec 21, 2009 at 2:41 PM, Philip Tucker <ptuc...@gmail.com> wrote:
> Thanks! > > Unless I'm misreading the documentation for SEQUENCE, that breaks the > contract of the JDP annotation API, doesn't it? > > Is there a way to annotate a field as a true sequence, or do I need to > create my own sequence and assign the value myself? > > On Dec 21, 9:29 am, "Max Ross (Google)" > <maxr+appeng...@google.com<maxr%2bappeng...@google.com> > > > wrote: > > 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/... > > > > 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><google-appengine-java%2B > unsubscr...@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<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.
