thanks again.
I'll look into this a bit more from app design point of view.
--Alen
----- Original Message -----
From: "Raymond Barlow" <[EMAIL PROTECTED]>
To: "OJB Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, June 03, 2003 11:28 AM
Subject: Re: Extent. How to?
> Hi Alen,
>
> I'm fairly new to OJB, but I'm pretty sure that you would have to define
> a class-descriptor for the RegisterForm class. Just try this for now to
> see if it fixes your problem: copy the entire User class descriptor into
> a new RegisterForm class descriptor and just change the relevant bits
> (ie. class="za.co.alen.struts.RegisterForm").
>
> It is a pain, but I think OJB needs to know how to map each extent class
> individually. There has been some postings about using "this" to extend
> mappings, but I've not been able to get this to work successfully.
>
> Just thinking about your problem a bit futher, how is OJB to
> differentiate between a User class and a RegisterForm class when
> searching for a class? ie. If RegisterForm is the same table and
> persistent fields as User, then how can OJB tell if it should be giving
> you a User class or a RegisterForm class? Maybe an alternative for you
> is to have RegisterForm contain an aggregated User class? This way you
> could search for User, then create your RegisterForm class passing the
> relevant User class. Just some ideas....
>
> Regards,
> Raymond Barlow
>
> Alen Ribic wrote:
>
> >Thanks Raymond for your reply.
> >
> >This is the thing. I am very lost.
> >The User class descriptor in repository contains all my filed mappings to
my
> >User table in db.
> >Now za.co.alen.struts.RegisterForm class mapping is a very good question.
> >What would the za.co.alen.struts.RegisterForm class mapping contain? I
don't
> >need any RegisterForm class specific fields at all.
> >I just need to indicate to OJB that it needs to something like cast
> >RegisterForm instance to User and hence would need to map that to User
class
> >/ table mapping. (Remember that the instance I get is of
> >za.co.alen.struts.RegisterForm)
> >RegisterForm class does not have any real meaning for persistence besides
> >the inherited fields from User bean.
> >It basically just contains overridden validate(...) method used for
> >server-side validation in my struts components.
> >
> >I hope this is making sense. :-)
> >
> >--Alen
> >
> >
> >
> >----- Original Message -----
> >From: "Raymond Barlow" <[EMAIL PROTECTED]>
> >To: "OJB Users List" <[EMAIL PROTECTED]>
> >Sent: Tuesday, June 03, 2003 10:45 AM
> >Subject: Re: Extent. How to?
> >
> >
> >
> >
> >>Hi Alen
> >>
> >>I hate to ask the obvious, but you never know :)
> >>Have you created a mapping for za.co.alen.struts.RegisterForm in your
> >>repository_user.xml file??
> >>
> >>Regards,
> >>Raymond Barlow
> >>
> >>Alen Ribic wrote:
> >>
> >>
> >>
> >>>Hi again
> >>>
> >>>I have sent an email already and got a good reply, but now I have an
> >>>
> >>>
> >issue
> >
> >
> >>>with mapping side.
> >>>
> >>>I have got classes as follows:
> >>>
> >>>// JavaBean
> >>>public class User extends ValidatorForm {}
> >>>
> >>>// Struts form bean
> >>>public class RegisterForm extends User {}
> >>>
> >>>Now I just need OJB to recognize RegisteForm class as a User.
> >>>
> >>>usr = request.getAttribute("registerForm"); // returns RegisteForm
> >>>
> >>>
> >instance
> >
> >
> >>>broker.store(usr);
> >>>
> >>>So now, OJB on store(...) should look at mapping for User class to User
> >>>table.
> >>>
> >>> <class-descriptor
> >>> class="za.co.alen.jfaq.User"
> >>> table="User"
> >>> >
> >>> <extent-class class-ref="za.co.alen.struts.RegisterForm" />
> >>> <!-- field mappings -->
> >>> ...
> >>> </class-descriptor>
> >>>
> >>>I presume that now I need a <class-descriptor/> for the RegisterForm
> >>>
> >>>
> >class.
> >
> >
> >>>Is this correct?
> >>>I looked at the Article example but I just can't get my one to work.
> >>>
> >>>My app still says that OJB cannot recognize RegisterForm class in
> >>>repository.
> >>>
> >>>What am I doing wrong and how can I go about doing this correctly.
> >>>
> >>>Thanks
> >>>
> >>>--Alen
> >>>
> >>>
> >>>
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> >>>
> >>>
> >>>
> >>>
> >>
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> >>
> >>
> >>
> >
> >
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> >
> >
> >
> >
>
> --
> Regards,
> Raymond Barlow
>
>
>
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