On Mon, Jul 2, 2012 at 12:36 AM, Holger Knublauch <[email protected]> wrote:
> Hi all,
>
> I am aware of Graph.isIsomorphicWith, but I need a function that tests
> whether Graph A is a sub-set of Graph B, including the ability to map bnodes
> into each other. Does that exist in Jena?
>
How about:
ask {
graph <A> { ?s ?p ?o }
minus { graph <B> { ?s ?p ?o } }
}
You can try substituting "filter not exists" for "minus" and see if
there are any performance differences. Not sure which one would be
better.
-Stephen
