Hi Matthieu, Did you try to use cascade-update="true" on a reference to the collection of objects (M part in 1:M relationship) you are trying to update?
Sergey -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, October 07, 2005 7:53 AM To: ojb-user@db.apache.org Subject: problems with autoincrement tables Dear fellow ojb users, i faced a problem with ojb: if you have a class A with the id of the column which is autoincremented, when you create a new object foo instance of A . OJB insert all the column excepted the autoincremented one, then fetch in the database the id of the newly stored object and set the Id in the object. When you insert an object with an id, OJB insert the object without the ID specified so the id is not the same in the database and in the object because in this case OJB don't fetch the new ID and don't update the object. With our DB2 z/OS database we are sometimes obliged to delete/insert object instead of updating the object (it's mandatory when of the updated column is a key of a partitionned table). In this case we fetch our object from the database, delete it, update the bean and store the object in the database. As it has been deleted OJB realize that the object need to be inserted (and not updated) but doesn't update the id of the java object. In a 1 to N relation this side effect is harmless but if you have inheritance in the database or a M to N relation then it's a big problem because when you insert the whole relation there are foreign key violation because of the difference of value between the bean and the database. Is this problem easy to solve ? Matthieu PATOU DINQ/DSIN/SIDM/VNVO/VOIN Téléphone 01 30 19 17 91 (29 17 91) --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] ********************** ** LEGAL DISCLAIMER ** ********************** This E-mail message and any attachments may contain legally privileged, confidential or proprietary information. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this E-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this E-mail message from your computer. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
