im not that religious about this. i dont like to pass daos around or have to look them up, not when i am using a central persistence tech like hibernate/jpa. so i think of my entitymodel as a repository for a single object :) you can give it the object or the class and id and it knows how to load it. the need to create a loadable detachable model for a persistent object is way too common to neglect such a convenience. entitymodel encapsulates the lookup so nothing leaks, but thats just me :)
-igor On Thu, May 8, 2008 at 5:14 PM, James Carman <[EMAIL PROTECTED]> wrote: > I typically don't like to have my UI code directly interact with the > ORM implementation (hibernate in this case). For my applications, I > pass a Repository (think DAO) object and the object's id into the > LoadableDetachableModel. > > > > On Thu, May 8, 2008 at 6:33 PM, Igor Vaynberg <[EMAIL PROTECTED]> wrote: > > you can pass in the id if you want, i prefer to work with objects...so > > > > class entitymodel extends ldm { > > private final String cn; > > private final Serialializable id; > > > > public entitymodel(class cl, serializable id) { cn=cl.getName(); > this.id=id; } > > public entitymodel(identifiable entity) { > > cn=hibernateutils.unproxy(entity).getclass().getname(); > > id=entity.getid(); } > > public object load() { session.get(class.forname(cn), id); } > > } > > > > this is just more convinient, obviously identifiable is an interface > > we use here internally. > > > > -igor > > > > > > > > > > On Thu, May 8, 2008 at 3:10 PM, Mathias P.W Nilsson > > <[EMAIL PROTECTED]> wrote: > > > > > > Thanks Igor! > > > > > > So if I use the sample code you gave me and, when getting the Object > from > > > the constructor > > > on the response page I will have a detached object. > > > > > > Do I have to load the object from database here? When looking at the > Phone > > > book example I see you pass id instead of object. Is this more > lightweight > > > or is it better practice to just pass the id and not the whole object? > > > > > > > > > -- > > > View this message in context: > http://www.nabble.com/Detached-models-tp17136199p17137533.html > > > > > > > > > Sent from the Wicket - User mailing list archive at Nabble.com. > > > > > > > > > --------------------------------------------------------------------- > > > 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] > > > > > > --------------------------------------------------------------------- > 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]