Re: [Gzz] PEG model_management--tjl

[Benja Fallenstein]

Tuukka Hastrup wrote:
> On Wed, 2 Apr 2003, Matti Katila wrote:
>
> > > - Do we really need the "home" member in FFC?
> >
> > Good question. If we do we don't have to use it. In zz like views it could 
> > be good startting point but not very needed by other views I think.
>
> zzStructure was somewhat "home cell" centric. RDF doesn't seem to be. I 
> couldn't find the term "root node" from the specs but can XML 
> serialization denote such?
>
> Every f+c view needs to have a start point in the structure, but where
> could we get this information?

No. RDF does not have such a concept.

However, RDF graphs themselves generally have URIs (at least a file: 
URI...). In a *serialization* of a graph this can be represented as the 
empty relative URI:

    <> dc:title "Foobar".

When unserializing, the relative URI is replaced by the absolute URI of 
the graph.

I think "home cells" should be implemented through a property on the graph:

    <> fenfire:home <urn:urn-5:...:17>.

For the FFC object, it would then make more sense to know the *graph's* 
URI; views could find the home cell from there, if there is any.

- Benja