[Opensource] workflow using addStatePairing - not quite getti ng it

[Mike Traum]

OK, I am still not understanding this.

If I use null for the StateForm in addStatePairing(), my understanding is
that the data will be stored in the Controller form persistently. But, I
can't seem to access that data - response.getFormCache() is an empty
hashtable, State.getFormCache("parameterName") is null, and the StateForm is
null.

I've even scoured the session and request objects in my debugger and can't
seem to find the info, other that in the request parameters, but then you're
losing out on the whole ActionForm thing...

Mike

-----Original Message-----
From: Helga Wyns [mailto:helgawyns at hotmail.com]
Sent: Friday, November 22, 2002 3:24 AM
To: opensource at jcorporate.com
Subject: RE: [Opensource] workflow using addStatePairing - not quite
getting it


Yes indeed, I am using a Controller form. The way I understand it, the state

forms are made up of subsets of the attributes on the controller form (which

could be interesting in wizard controllers), and the controller form holds 
all the data.
I don't think I lose a lot of the functionality? Are am I missing something?
>
>Yes, it looks better, but I can't seem to get it to work.
>
>How do you use the DefaultForm? It doesn't implement StateForm, so
>Controller.loadStateForm throws a ClassCastException. Are you only using a
>Controller form, and not a State form by using:
>addStatePairing(State, State, null) ?
>
>If so, don't you lose a lot of the functionality? The way I understand it,
>if you use StateForm's, all of the data for your states will be stored
>persistently, but if you use a ControllerForm, you will only have the
>previous state. If that's the case, then really all you gain from using
>addStatePairing is a better structure for transitioning but still have to
>handle all of the persistence.
>
>The code example at
>http://mail.jcorporate.com/pipermail/opensource/2002-April/010725.html gave
>me some more insight, but leaves out crucial details.
>
>mike
>
>-----Original Message-----
>From: Helga Wyns [mailto:helgawyns at hotmail.com]
>Sent: Wednesday, November 20, 2002 8:04 AM
>To: opensource at jcorporate.com
>Subject: Re: [Opensource] workflow using addStatePairing - not quite
>getting it
>
>
>I'm also using the new workflow methodology, but I don't create my own
>StateForms: I use the expresso DefaultForm. So there's no extra work.
>Furthermore, I think the new methodology is much better and more flexible
>than the old one!
> >
> >I'm writing a new Controller and was going to use the new workflow
> >methodology, but I can't quite figure it out from the Worflow document.
> >
> >I'm having problems understanding the StateForm. Is this supposed to be 
>an
> >object with a bunch of getters and setters for all of the data we want to
> >collect in the state? If so, can you use different data types (for 
>example,
> >boolean for a checkbox data field), or is it all String based?
> >
> >If the above is the case, it seems like a lot of extra work for some 
>stuff
> >that has been automated through DBObject until now. I assume the plan is 
>to
> >have a dynamic StateForm for DBObjects?
> >
> >tia,
> >mike
>
>
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