Hi Alexey,
Thanks for the report - it is a bug.
Could you please raise a JIRA ticket for this?
A workaround is
WHERE
{ ?X ?predicate ?object
FILTER isTriple(?X)
BIND(subject(?X) AS ?s)
BIND(predicate(?X) AS ?p)
BIND(object(?X) AS ?o)
}
Andy
Info: It's "RDF-star".
The community work split the naming into "RDF*" for Olaf Hartig's
original work and "RDF-star" for the community work. They are not quite
the same.
And it's easy to search for "RDF-star".
On 12/10/2021 08:24, Alexey Shulchenkov wrote:
Hi there,
I use Jena 4.2.0 and QueryBuilder to create SPARQL queries.
How to describe the following query snippet using QueryBuilder?
SELECT ?s ?p ?o
WHERE {
<< ?s ?p ?o >> ?predicate ?object
}
I tried the following expression but it results in an
IllegalArgumentException
*Subject (%s) must be a URI, blank, variable, or a wildcard.*
.addWhere(NodeFactory.createTripleNode(new Triple(s, p, o), predicate,
object))
