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.
> > >
> > >
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