You are viewing a plain text version of this content. The canonical link for it is here.

Posted to users@jena.apache.org by Norman Walsh <nd...@nwalsh.com> on 2013/09/17 17:09:45 UTC

Loading named graphs from trig files?

Hi,

I attempted to load the trig example from the spec, but Jena says:


  WARN jena.riot: Only triples or default graph data expected : named graph data ignored

What knob do I have to turn for Jena to provide access to the named
graphs?

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <nd...@nwalsh.com> | We discover in ourselves what others
http://nwalsh.com/            | hide from us, and we recognize in
                              | others what we hide from ourselves.--
                              | Vauvenargues

Re: Loading named graphs from trig files?

Posted by Andy Seaborne <an...@apache.org>.

On 17/09/13 16:09, Norman Walsh wrote:
> Hi,
>
> I attempted to load the trig example from the spec, but Jena says:
>
>
>    WARN jena.riot: Only triples or default graph data expected : named graph data ignored
>
> What knob do I have to turn for Jena to provide access to the named
> graphs?
>
>                                          Be seeing you,
>                                            norm
>

Most likely, you are loading trig into a model - a single graph.

You want to load into a dataset, a collection of graphs.

If you ask RIOT to load Trig (or NQ) into a graph, it warns it is 
ignoring the named graphs, mapping the triples in the default graph to 
the target graph/model.

	Andy