The spatial index is based on Lucene and at least for the textindex
updates to the dataset will be reflected automatically. In your case, as
you're removing a whole named graph I don't know whether this makes a
difference, but it might be the case. It would probably be helpful for
the developers to see your Fuseki config first.
Lorenz
On 24.01.2018 18:22, Lalonde Marc wrote:
> Hello all,
> I'm trying to execute spatial queries with jena in the following
> context: an object's position (lat/long) is updated on a regular basis
> and I run a query ("SELECT ... spatial:withinCircle()...") to verify
> whether the object is close to a particular point of interest. I
> simulate the object's motion by increasing its long coordinate; the
> associated model is removed (i.e. spatialDataset.removeNamedModel() )
> and recreated with the new position; content of the Lucene indexing
> folder keeps increasing. What happens is that when the object gets
> within the desired radius, the query returns a result (which is good)
> but I keep getting a result even though the object has (eventually)
> moved beyond the point of interest + radius. Could it be because model
> removal causes the spatial indexing to be out of sync? I use
> "RDFDataMgr.read(m, file)" to load an updated model to the dataset.
>
> Thanks,
> Marc
>
>
