Hi Martin, is there a way to check if user uD was successfully associated to M? Have add and remove of associations to be done manually?
What I saw in the meantime while debugging: Collection result = getCollectionByQuery(fkQuery, cds); (in QueryReferenceBroker.java, method retrieveCollection(...), line 566) returns an array with the number of users stored in the database. Also the resultArray in line 574 is filled correctly. Regards, Frank -----Ursprüngliche Nachricht----- Von: Martin Kalén [mailto:[EMAIL PROTECTED] Gesendet: Freitag, 18. März 2005 01:39 An: OJB Users List Betreff: Re: AW: How to delete single objects in a referenced collection? Hiller, Frank RD-AS2 wrote: > using p6spy was a good idea. > I tryed the way of using only pb.store(obj) with the following result. > I had a machine with three employees logged on. Now I let a fourth person log > on to the machine on my test system. > The person was added to the EMPLOYEES table, I can see the insert statement > in spy.log. > > Now I logged off the person. I see the update of the MACHINE table and I see > update statements for the three remaining persons. But I do not see a delete > statement for the logged off person. Since you are using the low-level PB API you have to think about "helping" OJB understand your object graphs. If you do like this: 1. load machine M referencing 3 users: M{uA uB uC} 2. create a new user uD and associate with M 3. remove user uD's association with M 4. store M (with auto-delete and RemovalAwareCollection with set of {u}) You could have a problem in how exactly you perform step 2 and/or 3. In step 1 OJB's cache is set up with (I'm using @x to denote a Java object-reference pointer): [EMAIL PROTECTED]@2{uA uB uC} You must perform step 2 so that uD is added to the exact vector [EMAIL PROTECTED], since this one keeps track internally of removed objects to be deleted on store. (In accordance you must also perform step 3 so that you actually remove it from the [EMAIL PROTECTED] and not just break the link from uD->M). Could you show us a bit of your code? (No need to re-post class descriptors, I have them on file.) It's to set up a testcase trying to reproduce your results if you show some of the implementation details. Regards, Martin P.S. I might be the wrong person trying to explain this, since it's not really as complicated as it might look like in my text. :) --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
