I am using a single-transaction-per-request pattern - in my case I want to
rollback the transaction even if there was a ui error - that way the user
isnt confused as to why he got an error but the changes got saved.
When I was using h3 I had a
Interface hibernatesessionlocator() {
session getsession();
void markrollback();
boolean hassession();
}
I have an implementation of it that upon the first request to getsession()
creates a session, begins a transaction, and sticks the session into a
request attribute.
The app can retrieve a session or mark it for rollback using the locator.
Then I had a filter that would at the end of the request either rollback or
commit the transaction and close the session.
The only diff with ejb3 is that you don't need the locator to create
entitymanager/transaction as it is done for you.
-Igor
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Friday, July 29, 2005 10:29 AM
> To: wicket-user@lists.sourceforge.net
> Subject: RE: [Wicket-user] Hibernate/EJB3.0
>
> Getting my hands on a WAR to see how you integrated hibernate
> would be great. I'd be very appreciative.
>
> Unfortunately, I am not starting from scratch and I am trying
> to see how well wicket grafts onto an existing project that
> has many DAO's that return POJO beans. We are currently
> moving them into EJB3 objects and the whole process is still
> quite new to me.
>
> I would be interested to see where/how you are building the Hibernate
> (EntityManager?) connection. From what Igor is saying it
> sounds like the connection is built up in the Wicket
> application and the objects are loaded on the attatch events.
> Perhaps we can flesh out this aspect of wicket in the wiki a bit more.
>
> -Paul
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Phil Kulak
> Sent: Friday, July 29, 2005 12:30 PM
> To: wicket-user@lists.sourceforge.net
> Subject: Re: [Wicket-user] Hibernate/EJB3.0
>
> I'll be committing a new version of CDApp shortly using
> rewritten databinding and Hibernate3 integration. If you're
> not into the whole CVS thing, I can post a WAR somewhere so
> that you can get a feel for it.
>
> On 7/29/05, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> >
> > Paul,
> > Im not aware of any official docs yet. I am currently using
> wicket as
> a
> > presentation tier for ejb3 project, and its pretty easy to
> integrate.
> >
> > IMHO there are two main areas that need integration: application
> object, and
> > detachable models for entities.
> >
> > In the constructor's application object i get all needed
> service bean
> > references or locators and set them as member variables. So now
> anywhere in
> > your wicket components you can do
> > ((MyApplicationClass)getApplication()).getService().doSomething();
> > and your getService() can be implemented either as getService() {
> return
> > service; } or getService() { return
> serviceLocator.locate(); } you can
> > implement helper funcs in your page subclass to eliminate casting.
> >
> > As far as detachable models go in the onAttach() you can do pretty
> much the
> > same thing:
> >
> > public void onAttach() {
> >
> >
> obj=((MyApplicationClass)RequestCycle.get().getApplication()).
> getService
> ().load(....);
> > }
> >
> >
> > Igor
> >
> >
> >
> >
> >
> >
> >
> > ________________________________
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of
> > [EMAIL PROTECTED]
> > Sent: Friday, July 29, 2005 8:52 AM
> > To: wicket-user@lists.sourceforge.net
> > Subject: [Wicket-user] Hibernate/EJB3.0
> >
> >
> >
> >
> >
> > Greetings,
> >
> >
> >
> > I'm evaluating several web frameworks including Wicket for
> an internal
> > project and I was wondering if there was some documentation on
> Hibernate or
> > EJB3.0 somewhere that I am missing. I found the
> wicket-contrib package
> at
> > http://wicket-stuff.sourceforge.net/ as well as the
> > HibernateObjectModel object in there. I also saw a quick run down on
> Phil's
> > weblog: http://jroller.com/page/pKulak/ that seems like a good start
> but I'm
> > failing to see how it all fits together. Is there an example
> application
> > (PetStore-ish?) that uses EJB3 or Hibernate available to look at?
> >
> >
> >
> > Overall I really like the direction of this project. Keep
> up the good
> work.
> >
> >
> >
> > -Paul
>
>
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