[Zope3-dev] Re: RDFLib and Zope 3

[Gary Poster]

On Aug 23, 2005, at 5:06 PM, Michel Pelletier wrote
> On Tue, 2005-08-23 at 16:26 -0400, Tres Seaver wrote:
>> They are know, but they are an *infeasible* join key (not only are  
>> they
>> strings, but as arbitrary-length strings with common prefixes, their
>> sorting semantics are almost worst-case for many join algorithms.)
>
> Right, perhaps a good compromise is a URI utility which maps the  
> URIs to
> efficient join keys.  That adds a double layer of mapping, but for now
> that might be an easy choice to make to give us time to think about
> exposing a primary key.

I'd like something better. :-)

The relationship between ZODB content objects, their int id as  
provided by the pertinent intid utility, and a (theoretical)  
corresponding RDF URI is what I'm having a hard time not making hacky  
in my mind.  I'll think about it some more.

Another difficulty is that I like the RDF data model and the RDFLib  
implementation, but I haven't found a compelling reason to care much  
about the actual RDF format input and output.  Is there a practically  
compelling defense of RDF as a format somewhere to which you can  
point me?

Gary