----- Original Message -----
From: george stewart <[EMAIL PROTECTED]>
To: Turbine <[EMAIL PROTECTED]>
Sent: Monday, December 27, 1999 12:29 AM
Subject: Re: more changes
> > > As we've discussed, it would be nice to have
> > something
> > > for retrieving the maps. I'm not gung-ho for
> > doing
> > > this. It needs some design (Scott didn't give
> > this
> > > one up), and I'm a coder not a designer. Maybe,
> > we
> > > can find something on the internet about this.
> > Tons
> > > of people must be using this meta-data approach.
> > >
> > well i'm not sure what you mean by "meta-data
> > approach". do you mean to use
> > the system tables (meta-data) of the RDBMS? if this
> > is the case i have to -1
> > on this. my reasoning is it will be out of our
> > control what each RDBMS
> > vendor stores in its systems tables making it
> > unpredictable. I would rather
> > create our own table schema or XML DTD to store this
> > data and create a
> > utility application to help maintain the data.
> >
> Scott, I mean the class map junk. The stuff that maps
> class attributes to database columns. So, wouldn't
> you call this class metadata?
>
yes i would but, i think where we differ is, where and how this data are
stored. my view of it has always been that this data is stored externally
(in the DB or an XML file). Doing it this way has the benefit of being able
to change the mappings with out having to re-code and compile. it also will
allow someone to maintain the mapping data without having to know how the
internal workings of the class map hierarchy works, a task that IMOP is
difficult to do even for an experienced java coder. if i'm not mistaken, i
think you have a very different view of how the mappings work. I also think
you may have mentioned this before: do you see the mappings to be static and
hard coded and compiled? so if there is a change in the mappings, one must
change the code, compile and re-deploy it? or am i mistaken? if am not then
it gets a -1 from me. what does everyone else think? if i'm wrong in my
assertion, could you explain to me how you view the class maps in general?
<snip>
> OK. But how do you make the JavaBean stuff work
> without introspection. Maybe, I' just uninformed.
>
well now you have me thinking... let me examin this a bit more and i will
get back to you. anyone else have any ideas on this issue?
>
> OK. But how about if we rename it to Cursor, as in
> Scott's paper. Then, I just move Cursor over from
> database.
agreed
-scott-
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