Mahler Thomas <[EMAIL PROTECTED]> writes: > Hi again Henrik, > >> -----Original Message----- >> From: Henrik Berg [mailto:[EMAIL PROTECTED] >> Sent: Wednesday, June 11, 2003 9:53 AM >> To: [EMAIL PROTECTED] >> Subject: Removing objects from collections...again >> >> >> For some reason, suddenly the RemovalAwareCollection-stuff started >> working again here... Have no idea what's happened, I hadn't looked >> at this for some time, and then, today, everything seems to work just >> fine. > > We call this feature "telekinetic software update" (TM) :-)
Hm, this reminds me of Orwell's 1984... There was some bug in one of the classes. The developers, reluctant to admit their mistakes, hacked into all the computers in the world where OJB was installed, and replaced the code with the new, corrected code. I suppose now you're going to scan through the mailing-list archives, deleting every reference to the RemovalAwareCollection-problems. Clever. > >>Anyone else still having problems with RemovalAwareCollections? >> >> Now what I need, is some Collection-class that removes the removed >> objects, but lets them stay in the database, just sets their foreign >> keys to 0/null or something, so that they don't reappear in the >> collection next time it loads from the database. >> >> Any possibility I could make this happen? > > Yes, that's possible. > For example the ODMG collection DListImpl works in this way. > I haven't looked much indo ODMG yet. Can I use DListImpl with the PersistentBroker API? > It is also possible to simulate this with using a m:n mapping with an > intermediary table. > you just configure it so that only the entries from the intermediary table > get deleted but not the refernced entries. OK, suppose this is the way I'll do it. > Of course you can also use the trick to set the FK's to 0. Doesn't sound very clean. Can the object determine the FK-field at run-time? -- Henrik --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
