Gene -- There are two interfaces designed to handle this situation: org.apache.ojb.broker.PBLifeCycleListener and org.apache.ojb.broker.PersistenceBrokerAware.
The PBLifeCycleListener interface can be used by any object. Just implement the interface in your class and register it as a listener with the PersistenceBroker. PBLifeCycleListener includes two methods, beforeInsert and beforeUpdate, that are well suited for your situation. The PersistenceBrokerAwareinterface is intended to be used by a persistence-capable class. PersistenceBrokerAwareinterface defines two methods with the same names that can also be used in your situation. Ron Gallagher Atlanta, GA [EMAIL PROTECTED] > From: "Gene Qian" <[EMAIL PROTECTED]> > Date: 2003/09/18 Thu AM 01:13:59 EDT > To: [EMAIL PROTECTED] > Subject: How to Set Last Updated Time Automatically? > > Hi, > > I have a persistent field, say, lastUpdated(column is > LAST_UPDATED_DATETIME), which is used to store last updated time of the db > record. My question is: Can we use OBJ automatically set and store the field > with right datetime when the persistent object was stored to DB with any > field value changed? If so, how to do? > > Any comments will be appreciated. > > Gene --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
