Re: [Tracker] Tracker / Tomboy / Maemo

[Philip Van Hoof <spam pvanhoof be>]

On Fri, 2009-06-12 at 17:15 +0200, Cornelius Hald wrote:
> Hello Everyone!

Hey!

> I'm the author of Conboy[1] a Tomboy[2] compatible note taking
> application for the Maemo[3] platform. As the next version of Maemo will
> feature Tracker, I thought I should add some support for Tracker to my
> application as well. But before I can do that I still have some
> questions:

Awesome idea!

> * Is there already an indexer for Tomboy or GNote[4]? If yes, I think I
> could reuse it because the XML file format is exactly the same. While
> searching I only found this message (including some code):
> http://www.mail-archive.com/tracker-list gnome org/msg00954.html

In master you should probably just make an ontology for notes and store
it directly into Tracker's storage, instead of storing XML files
yourself.

Because all data must be indexed (for fulltext searching) anyway, why
not simply use Tracker as sole storage then?

> * Under /usr/lib/tracker I see extract-modules and indexer-modules. Is
> there a document which explains the difference or could you please
> explain shortly?
>
> * If I understood correctly I could store my notes directly inside
> Tracker without saving them as XML in the file system. What advantages
> would that bring (except not having to read/write XML)?

The fact that you don't need to write storage code yourself plus that
you get Tracker's SPARQL query capabilities, plus that all applications
can now start using the data that you've put in Tracker, as context for
their spectacular use-cases.

> It would be great if you could answer me those questions or point me to
> the relevant places!

Check out RDF, Nepomuk, SPARQL and SPARQL+Update