[Nepomuk] AsyncQuery in Python

[Stéphane Laurière]

Hi everyone,

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.

[1]
svn://anonsvn.kde.org/home/kde/trunk/playground/base/nepomuk-kde/nepomukshell/asyncloadingresourcemodel.cpp

==========
from PyKDE4.nepomuk import Nepomuk
from PyKDE4.soprano import Soprano
from PyQt4.QtCore import *

class AsyncResourceLoadingModel:

     def __init__(self, sparql):
         self.sparql = sparql

     def query(self):
     	query = Soprano.Util.AsyncQuery.executeQuery(model, self.sparql, 
Soprano.Query.QueryLanguageSparql)
     	QObject.connect( query, SIGNAL("nextReady(Soprano.Util.AsyncQuery* 
) "), self.queryNextReadySlot)
     	

     def queryNextReadySlot(self, query):
     	print "getting next"
     	query.next()
     	

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()
=========

Cheers

Stéphane


-- 
Stéphane Laurière
Mandriva http://mandriva.com