Remote "explain" method call

[Jérôme]

Hi,

I'm currently working with JOSEKI.
My client (a web application) does:
        [...]
        QueryExecution qExec = QueryExecutionFactory.sparqlService(url, 
query);
        ResultSet set = qExec.execSelect();
        [...]

At the server side, search(query) is called on a IndexSearcher object.

I would like to call the "explain" method instead of the "search" one.

I have not found how to do it with the Jena API.

Should I implement my own method? By adding an "explain" method in the 
IndexLarq class?

Thank you.

Jérôme