Hi Jan, See if the "Deleting in an Iterator" section at:
http://cayenne.apache.org/doc/deleting-objects.html will help you. /dev/mrg On Nov 19, 2007 1:48 PM, Jan Lendholt <[EMAIL PROTECTED]> wrote: > Hey folks, > > I got pretty frustrated in the meantime with cayenne, as i think there are > happing some pretty ugly thingsin cayenne's internals. > > At first, I again need help on deleting objects with relationships. > > Let's say I've got one table called "booking" with its entity Booking. > And I've got another table extras with entity Extras. > > The relationship is from booking to Extras one to many (1-n entries in Extra > for one booking entry). > I've set both relationships with delete rule to nullify. > > Now, sime pseudo-code: > > Booking booking = ...; > > List<Extras> extras = booking.getExtrasArray(); > > for (int i= 0;...) > { > booking.getDataContext().deleteObject(extras.get(i)); > > } > > commitChanges(); > > Now, the data are deleted from the database. > But if I do a booking.getExtrasArray(); again, it still contains the deleted > objects; it seems as if they were cached or so :-/ > Even an booking.RemoveFromExtras(extras.get(i)) won't work. > > Hiow does the deletion work correctly? I really don't understand why cayenne > won't manage that automatically, for it would be quite logic to remove > deleted objects form the object graph. > > Well, some words about the "ugly things": We had some really strange errors > coming up which are at the end quite logic, but do not help finding the > problem so wen spent about 3 hours to find it. > We deleted an entity in the modeler and recreated it. Unfortunately, there > was a reference missing. So cayenne just threw an index out of bounds > exception. I really don't understand such a behaviour either :/ To me, such > kind of errors should be handeled and analyzed automatically by a framework, > e.g. like spring does. Ok, that's it for now. Hope you still like me :-D > > > Tahnks a lot in advance & kind regards form Hamburg! > > Jan > > > > > _________________________________________________________________ > Importieren Sie ganz einfach Ihre E-Mail Adressen in den Messenger! > http://messenger.live.de/community/neuekontakte_adressimport.html
