Hi again, Jose Galiana wrote: > So, if I want ODMG deletes objects and their rows in dabatase I must to use > DList instead List, don�t? >
If you want to have it done *automagically*, yes. > > > -----Mensaje original----- > De: Thomas Mahler [mailto:[EMAIL PROTECTED]] > Enviado el: martes, 08 de octubre de 2002 20:35 > Para: OJB Users List > Asunto: Re: Collections or DCollections? > > > Hi Jose, > > Jose Galiana wrote: > >>Works ODMG better if the collection-description elements in classes are >>DCollections (DList, etc.. ) than traditional java.util.collection? Why? >> > > > If you want to have collection that are aware of removing and adding > items you'll have to use DList. > If you don't need such a feature you can use normal collections as well. > The DList collection bring a lot of overhead with them. > If you need ODMG compatibility you should use them. > > >>If I don�t use auto-delte in ODMG collections, how ODMG deletes the rows > > in > >>database? > > > ODMG tracks all objects that can be reached from an object that is > locked to the transaction. Thus the transaction is aware of which object > must be deleted. The PB kernel cannot do this, as it does not track the > state of objects. > > cheers, > Thomas > > >>Thanks in advance >>Jose Galiana >> > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
