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get_value_type and get_variable_name: https://git.gnome.org/browse/tracker/tree/src/libtracker-sparql/tracker-cursor.vala#n126 https://git.gnome.org/browse/tracker/tree/src/libtracker-sparql/tracker-cursor.vala#n139 You btw shouldn't use the DBus Resources1 object, but use libtracker-sparql instead. Ivan Frade schreef op 17/04/2014 20:14: > Hi Jürgen, > > Yes, tracker does not return bindingNames or types of the resulting > nodes. It assumes the client takes care of interpreting the results > of its query. > > A workaround would be to parse the SparQL in the wrapper and add > that information when translating the DBus result set to the > openrdf format. The binding Names can be added straight forward > from the SELECT of the query. The type information is more > complicated to deduce, based on the position in the query and/or > the rdfs:range of the properties (defined in the ontology). > > Regards, > > Ivan > > > On Thu, Apr 17, 2014 at 10:11 AM, Jürgen Jakobitsch < > j.jakobit...@semantic-web.at> wrote: > >> hi, >> >> i'm currently developing an openrdf [1] repository implementation >> with a tracker-sparql backend via dbus. this will enable java >> developers to include tracker-sparql results in any application >> (or create a sparql endpoint) extremly easily. openrdf's api is >> quite common in the semweb community.. >> >> everything is working very nice already the only trouble i'm >> having is that i get a vector of vectors containing simple >> strings as a result object, meaning i need to find out types >> (literals, uris, bnodes, typed literals).. >> >> is there any known way to retrieve some more information in the >> results given via dbus? also bindingNames are missing... >> >> any pointer really appreciated wkr turnguard.. >> >> >> [1] http://www.openrdf.org/ >> >> | Jürgen Jakobitsch, | Software Developer | Semantic Web Company >> GmbH | Mariahilfer Straße 70 / Neubaugasse 1, Top 8 | A - 1070 >> Wien, Austria | Mob +43 676 62 12 710 | Fax +43.1.402 12 35 - 22 >> >> COMPANY INFORMATION | web : http://www.semantic-web.at/ | >> foaf : >> http://company.semantic-web.at/person/juergen_jakobitsch PERSONAL >> INFORMATION | web : http://www.turnguard.com | foaf : >> http://www.turnguard.com/turnguard | g+ : >> https://plus.google.com/111233759991616358206/posts | skype : >> jakobitsch-punkt | xmlns:tg = >> "http://www.turnguard.com/turnguard#"; >> >> _______________________________________________ tracker-list >> mailing list tracker-list@gnome.org >> https://mail.gnome.org/mailman/listinfo/tracker-list >> >> > > > > _______________________________________________ tracker-list > mailing list tracker-list@gnome.org > https://mail.gnome.org/mailman/listinfo/tracker-list > -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTUPETAAoJEEP2NSGEz4aDuUAIALHr/46yb4hUVuj5GWaxls3F H5JODAvmGHEuQsgSmemjj9GQyFEUb2VClM6KjoBqK1+sn8FxVDKXaTn7yUMJNdjz tzefo25nuAzwiKGgnpwjhlw474PvlhGlaEIvUiQTQiMAdE9DV5sR3gzSZ5N7Eoo7 p/8jPi4EaARgaLlxDOlAwQqpQTe3qPOPjQcNeerWgO+azemFaSYjdR1o8f32726n 7b92sidVMDv4Zoq2Osh9EEycS/4fxUvWE1eBYG7BgyNAf5QMv3S/mlmFGStZnS70 +hqumsvcWyaI+wQ3iMELqioFDfHYNdQfjYnr/jgJSFEZrYliU2lyla093frQ61Y= =FF/z -----END PGP SIGNATURE----- _______________________________________________ tracker-list mailing list tracker-list@gnome.org https://mail.gnome.org/mailman/listinfo/tracker-list
