Hi Brent, This is an annoying limitation of how one-to-many relationships are currently implemented. There is a bug filed for it here: http://code.google.com/p/datanucleus-appengine/issues/detail?id=80
I'm hoping to get this issue resolved pretty soon. Sorry for the trouble, Max On Tue, Dec 1, 2009 at 9:45 AM, Brent <[email protected]> wrote: > I'm just beginning with GAE, and although I've programmed in Java > before, I'm a little rusty. I'm trying to create a bookmark manager > application. > > I have two objects, a Category object and a Bookmark object. I want > the Category object to be able to store multiple sub-categories as > well as multiple bookmarks: > > --snip-- > @PersistenceCapable(identityType = IdentityType.APPLICATION) > public class Category > { > @PrimaryKey > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > private Key CategoryId; > > @Persistent > private String _Title; > > @Persistent > private List<Category> _Categories; > > @Persistent > private List<Bookmark> _Bookmarks; > > --snip all the public methods, etc-- > > > However, when I try to store a new category into the datastore, it > stores nothing. When I remove the List<Category> property, it stores > fine. Is there something I'm doing wrong with regards to an object > being a child of itself? > > I've tried to search for this, but haven't been able to find anything. > > Thanks. > > Brent > > -- > > 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]<google-appengine-java%[email protected]> > . > 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 [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.
