Ok, I'am trying in other ways, but I have other problems. Can you hel me in a correct ... Identity oid = new Identity(e, broker); ... b = (Utenti) persistenceManager.getObjectById(oid, false); ... thanks in advance
Armin Waibel ha scritto: > Hi Alessandro, > > Alessandro Vincelli wrote: > >> I use this simple code to retrieve row, >> but after this code the db sequence of Utenti table is autoincrement. >> Why? >> Thanks,Ale >> >> >> //1. Get the PersistenceManager >> PersistenceManager persistenceManager = >> jdo.getPersistenceManager(); >> Utenti e = new Utenti(); >> e.setId_utente(bean.getId_utente()); >> PersistenceBroker broker = >> PersistenceBrokerFactory.defaultPersistenceBroker(); >> Identity oid = new Identity(e, broker); > > > When you create an Identity object for a new (not persisted) object, OJB > try to lookup/set a valid PK for the object, thus the sequence will be > incremented (because the PK is null and OJB lookup a valid sequence for > the new object). > > regards, > Armin > > >> Utenti b = new Utenti(); >> // 2. start transaction >> persistenceManager.currentTransaction().begin(); >> // 3. Get the Object based on the primary key >> b = (Utenti) persistenceManager.getObjectById(oid, false); >> // 4. Copy data to bean >> copyData(b, bean); >> // 5. End transaction >> persistenceManager.currentTransaction().commit(); >> >> --------------------------------------------------------------------- >> 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] > > > -- ------------------------------- Alessandro Vincelli E-mail: [EMAIL PROTECTED] tel: +39 339 8695546 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
