*Sir, Thanks for your guidelines. Thankyou. * On Sun, Oct 24, 2010 at 5:14 PM, Vikas Hazrati <vhazr...@gmail.com> wrote:
> Hi Matthieu, > > You are right, you need some conditioning and then you need to work > around the limitations of working with relationships around JPA. Then > finally you tend to realize more and more that may be you are better > off with unowned relationships > > Here are the issues that we faced and tried to resolve > http://wp.me/pNh6u-6b > > Regards | Vikas > www.inphina.com > > On Oct 23, 9:01 pm, Matthieu Bertin <berz...@gmail.com> wrote: > > Hello, > > > > I'm just here because i feel i need to rant a little. I came here > > expecting way too much. I'm of course blaming me for being way too > > optimistic but i also believe ranting against google is somehow > > justifiable, and i'll explain why. > > > > I've started porting an application on Google App engine and i'm now > > sick of discovering exceptions like : > > > > - Detected attempt to establish PictureThread(28) as the parent of > > Picture(27) but the entity identified by Picture(27) has already been > > persisted without a parent. A parent cannot be established or changed > > once an object has been persisted > > - cannot operate on two differents types of entities in the same > > request/transaction'. Your documentation has headed me in the wrong > > direction; all you mention is 'unowned relationships' and 'many-to-many > > relationships' are not supported. > > Please fix that. Give us the real limitations on the documentation! > > There is no mention of "one to one" limitations or 'handling multiple > > entities in same transaction' limitations anywhere. > > > > It would totally be understandable not to mention theses limitations > > when JDBC APIs were created, but nowadays, when you mention 'JPA', this > > kind of limitations HAVE to be mentionned. > > -- > 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.
