Marc, I don't think the functionality you are looking for is in Torque but you could add it. You could try the following: 1. Extend org.apache.torque.om.BaseObject to add the appropriate functionality. 2. Then in your schema file in the tag. 3. Generate Your Classes using Torque. r, Hugh -----Original Message----- From: Marc Dugger [mailto:mdugger@sunsetdirect.com] Sent: Monday, June 02, 2003 1:50 PM To: torque-user@db.apache.org Subject: persistence aware Are there any call-back methods that can be implemented so that the application will be aware of an OM object being inserted/updated? If not, can anyone suggest any extension points where it would be appropriate to implement such functionality?