Didier, Do you mean "There is currently *a bug* preventing owned one-to-many relationships *where the parent and the child are the same class*, making it difficult to model tree structures. This will be fixed in a future release. You can work around this by storing explicit Key values for either the parent or children.". If so, that is a bug not a limitation.
J On Sun, Feb 6, 2011 at 11:30 AM, Didier Durand <durand.did...@gmail.com>wrote: > > Hi, > > I think that it is still in the doc: see last bullet point of > > http://code.google.com/appengine/docs/java/datastore/jdo/overview.html#Unsupported_Features_of_JDO > > regards > > didier > > > On Feb 6, 4:48 pm, Jan Willies <j...@willies.info> wrote: > > 2011/2/6 Cyrille Vincey <crll...@gmail.com> > > > > > Some time ago, relationships between entities of same kind were not > > > supported by the datastore. > > > This was annoying in particular when trying to movel tree structures > > > (@OneToMany relationship between MyClass and MyClass). > > > The datastore documentation was pretty clear about this. > > > > > I cannot find this limitation in the datastore documentation anymore. > > > Have I missed a good news about a recent release allowing relationships > > > inside entities of the same kind ? > > > > I tried it a few days ago (with JDO) and it didn't work. > > -- > 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-java@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. > > -- 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-java@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.
