Re: [Tracker] Object / RDF storage

[Ivan Frade <ivan frade gmail com>]

hi

On 5/16/09, Philip Van Hoof <spam pvanhoof be> wrote:
> On Sat, 2009-05-16 at 10:20 +0200, Michele Tameni wrote:
>
> Hi Michele,
>
> > I'm looking for an alternative to use soprano as RDF storage for a
> > work that i'm going to do, and i've read that tracker are going to to
> > what i need.

 Tracker is not a generic rdf storage: internally it "compiles" the
ontology into sql and everything must follow that ontology (in a
generic triplet store you can put whatever triplets you want, no
matter the ontology).

 Right now it works with the nepomuk ontologies and supports sparQL
with the API that philip described. it could be possible to replace
those ontologies with others relevant for your project, but AFAIK
nobody tried that yet.

> > Reading the features page on the site [
> > http://projects.gnome.org/tracker/features.html ]  object store seem
> > what i need, and reading this page [
> > http://live.gnome.org/Tracker/Documentation/AppDevelopersManual ] it
> > seam that rdf storage is possibile.
>
> This AppDevelopersManual is outdated.

hey!!!! It is incomplete and useless at the moment, but a work in progress :)


> > there is an api that permit to store object and their metadata that
> > allow me to forget rdf?

 It is difficult to forget RDF using a rdf storage :). But we use the
turtle format for the triplets to make it less painful. Turtle is much
nicer and easier to handle/read/write than rdf/xml.

 regards,

Ivan