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From "Reinhard Poetz" <reinh...@apache.org>
Subject RE: Woody: managing persistence sessions
Date Wed, 05 Nov 2003 12:02:58 GMT

From: Jeremy Quinn

> On Tuesday, November 4, 2003, at 01:43 PM, Reinhard Poetz wrote:
> 
> >    catch (break) {
>          //   a continuation has been started
> >    }
> >    catch (continue) {
>          //   a continuation has been resumed
> >    }
> > }
> >
> > IIRC catch(break) is must be used as "top-level" statement
> 
> I think this is why they did not work before
> 
> > (... but this is only a guess - never tried catch(continue) but
> > catch(break)
> > works for me.)
> 
> They both work for me too, so does :
> 
> catch (return) {
> 	// the page has finished rendering
> }
> 
> So I have very fine-grained control over the session management :)
> 
> What I am not sure about now, is whether the values of widgets on the 
> Form are bound to the Bean via object references, or if they are 
> independent copies.
>
> If they are copies, and the Bean does not get touched during the 
> SendPageAndWait/Validate cycle then all one should need to do 
> to manage 
> the HibernateSession is this:
> 
>   . . .
>    // get the User
>    form.load (user);
>    session.close();
>    form.showForm (formURI);
>    session = factory.createSession ();
>    form.save (user);
>    // save the User
>   . . .
> 
> If I need to make a 'browser' of 'lazy-initialised' 
> relationships then 
> I would be using JXTemplate rather than Woody, with a dynamic model, 
> and I still have enough control to manage the Session with these 
> call-back handlers. Excellent!
> 
> Thanks for your help.


Cocoon Forms Widgets (aka Woody Widgets) have their own values. If you
do "form.load(myBean)" the values are read out from the bean (--> copies
- no references). If you are finished with data collecting you can write
them back using "form.save(myBean)"

Cheers,
Reinhard


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