Re: [Gzz] Wrapper mini-API to RDF

[Alatalo Toni]

On Tue, 18 Mar 2003, Benja Fallenstein wrote:

> I think that would be exactly backwards: First make your experience with
> the APIs out there, then decide whether you need your own... :-)

i read this so that what follows must not necessarily be made, but:

> If I had to design an RDF API today, I'd offer three kinds of access:
> Object-oriented style, triples lookup style, and fast access.

this sure sounds interesting.

> Object-oriented style: using methods on nodes--
>       node.get(rdf.type) --> Node
...
>       node.all(rdf.type, -1) --> List of Nodes
>       node.set(rdf.type, node2);
>       node.add(rdf.type, node2);

something like that we definitely need, and, i'd assume, have already in
use? i don't know the Jena API.

> Here, we're trying to get the idea across that you're accessing *a
> property of a node*, representing the node as an object.

y

> Triples lookup style: using methods on the graph--

hm

>       graph.add(node, prop, node2);

ok

> Fast access style: for views, using a special kind of iterator to avoid

isn't there the thing about using impartial/incomplete data? (also due to
delays in a networked implementation?)

>       iter.lookup(subj, prop, obj);

.. as the lookup time varies?

or is this stuff handled on a different level?
i haven't read the dtn related stuff mentioned.

> Maybe once the views get to slow, and we identify Jena's interface as
> the bottleneck?

sounds sensible,
OTOH you do know that i don't really know about views nor optimatizations
-- just trying to follow the developments a bit.

> - Benja

~Toni