Guido Casper dijo: > That's interesting. Would you care to explain to me what the difference > between a DB transaction and an object transaction is?
In short: Any O/R map tool has the DB model loaded in a set of diferent Java Objects. That way, we have to worlds that need to be synchronized: The DB world and the Object world. See: http://db.apache.org/ojb/faq.html#How%20is%20OJB%20related%20to%20ODMG%20and%20JDO? Some API does not support the Object transaction level. This is the case of PersistenceBroker in OJB. Best Regards, Antonio Gallardo