[higgins-dev] Attribute Value Types (was RE: Higgins 1.1 M2 release stat

["Drummond Reed" <drummond.reed@xxxxxxxxxxxx>]

[renaming this thread to stay on topic]

Paul, Jim:

Is there a way to have our cake and eat it too, i.e., could we go back to
saying that all values of an attribute have a single type, BUT if that type
is Entity, then each value (instance of an Entity) can have its own type.

That way, any multi-valued attribute that is NOT of type Entity ensures that
all values are of the same type, while multi-valued attributes of type
Entity preserve the rich multi-typed multi-value model that Daniel and Mike
and Paul don't want to lose.

Or is there something that prevents this happy duality?

=Drummond 

> -----Original Message-----
> From: higgins-dev-bounces@xxxxxxxxxxx [mailto:higgins-dev-
> bounces@xxxxxxxxxxx] On Behalf Of Paul Trevithick
> Sent: Tuesday, June 17, 2008 10:25 AM
> To: higgins-dev
> Subject: Re: [higgins-dev] Higgins 1.1 M2 release status - 13-June-08
> 
> I don't like the added complexity either, but it is good for another
> reason.
> Today the Higgins "Context Data Model" is expressive enough to be able to
> represent with minimal loss a wide range of data models that exist in the
> wild. Without this flexibility, for example, it could not represent many
> kinds of RDF-based data (e.g. from the semantic web, etc.).
> 
> 
> On 6/17/08 11:36 AM, "Jim Sermersheim" <jimse@xxxxxxxxxx> wrote:
> >
> >
> >  This is branching into another topic.
> >
> >  IAttributeModel can no longer have a method getValueModel.  Why?
> Because the
> > group decided that each value of an attribute is allowed to be of a
> different
> > type.  Daniel and Mike were the main proponents of this.  I don't like
> it and
> > I pretty much caved to group consensus.  If you'd like to re-raise that
> > argument, feel free.  To me, it's much simpler to say that all values of
> an
> > attribute are of the same type.
> >
> >  I only deprecated it for now, so that we could figure out how to fix up
> all
> > the old code that used it.  If we can reverse that decision, I'd love
> it!
> >
> >  Jim
> >
> <snip>
> 
> 
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