Hi Stephane,
On 05/11/2010 10:54 AM, Stéphane Laurière wrote:
> I'm trying to execute an AsyncQuery using the Python bindings with the
> snippet below taken from [1] but I get the following error: "Soprano"
> Error in thread "Invalid iterator ID.", and the query slot is never
> called. Any idea why? The same query executed in sync mode works fine.
> def query(self):
> query = Soprano.Util.AsyncQuery.executeQuery(model, self.sparql,
you forgot the "self." query is probably garbage collected after this
method. Not sure, this is a guess...
> Soprano.Query.QueryLanguageSparql)
> QObject.connect( query, SIGNAL("nextReady(Soprano.Util.AsyncQuery*
> ) "), self.queryNextReadySlot)
you know that you can use the fancy way:
self.query.nextReady.connect(self.queryNextReadySlot)
:)
> if __name__ == "__main__":
>
> nepomukType = Nepomuk.Types.Class(Soprano.Vocabulary.RDFS.Resource())
> term = Nepomuk.Query.ResourceTypeTerm(nepomukType)
> query = Nepomuk.Query.Query(term)
> sparql = query.toSparqlQuery()
> asyncmodel = AsyncResourceLoadingModel(sparql)
> asyncmodel.query()
Also you never enter any event loop. So the app will quit before any
slot is executed.
Cheers,
Sebastian
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