Robert J Celestino wrote:
David,
I believe that you must write 30 class descriptors all exactly the same except for the class name :-( I have not been able to get this sort of scenario to work any other way.
It seems odd, since ojb "should" know the inheritance structure due to the extent-class tag. It would be nice if extent classes need only add field-descriptors for the attributes that are different.
the problem is that descriptors are not inherited by extent class.
jakob
Bob c
---------------------------------------------------------------- Bob Celestino SAS Research and Development 919 - 531 - 9425 [EMAIL PROTECTED]
SAS - The Power to Know
> -----Original Message-----
> From: David Corbin [mailto:[EMAIL PROTECTED] > Sent: Friday, October 31, 2003 2:37 PM
> To: OJB Users List; Jakob Braeuchi
> Subject: Re: mapping many classes to one table
> > > On Friday 31 October 2003 14:11, Jakob Braeuchi wrote:
> > hi david,
> >
> > > why don't you use ojbConcreteClass ?
> > I don't understand. I fully plan on having something like > this so I can > materialize the correct type object. That has little (as > far as I can tell) > to do with my problem. As far as I can tell, unless I write 30 > class-descriptors, those objects of that class are believe > to not be > persistable.
> > > >
> > David Corbin wrote:
> > > I have a class heirarchy, and there are 30 different concrete > > > classes in it. There is NO difference in the data, just > in behavior. > > > I'm well aware of how to read these in from a common > table using a > > > RowReader.
> > >
> > > Do I have to write 30 class-descriptors all of which > look exactly > > > the same except for the class name?
> >
> > yes, if you do not want to copy paste ;)
> >
> > jakob
> >
> > > Thanks
> >
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> > -- > David Corbin <[EMAIL PROTECTED]>
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