Hello
I have a case I cannot see how to support, any advice gratefully
received.
I have a graph which has a collection of properties which enable me to
logically subset the graph to give me a graph of currently valid
statements. This concept of validity is an emergent property,
constantly changing as the graph evolves.
There are a number of queries I would like to run against the 'valid'
graph, for example examining complex property paths.
So, I would like to create a 'valid graph' on the fly, run queries
against it, then dump this graph. All other work happen with respect
to the full graph.
I thought I could use SPARQL subquery functionality, but it seems to
me that a subquery returns results, not a graph.
I hoped to have a query a bit like this:
SELECT ?someinfo
WHERE{
GRAPH <transient valid graph> {
?someinfo has conditions
}
{construct{
foo}
where
{validity constraints}
as <transient valid graph>}
}
Is there a part of the Jena/Fuseki implementation which might support
this?
many thanks
mark
