def _ns_query(self, session):
        """
        Return a SQLAlchemy query that is already namespaced by the app and namespace given to this backend
        during initialization.
        Returns: a SQLAlchemy query object

        """
        return session.query(ORMJob).filter(ORMJob.app == self.app,
                                            ORMJob.namespace == self.namespace)
Return a SQLAlchemy query that is already namespaced by the app and namespace given to this backend
        during initialization.
        Returns: a SQLAlchemy query object