Hi Jack,
short answer: You'll need the SPIN API [1] as a plugin to Fuseki. Fuseki
by itself does not know what to do with the RDF declarations of SPIN
functions - they are just triples for Fuseki.
BTW afn:localname is not just a TopBraid function, but is originally
from Jena. So it works in Fuseki, but anything from the spif: namespace
would not work.
A commercial alternative to Fuseki is the TopBraid Live platform [2],
and this has SPIN and TopBraid SPARQL functions built in.
HTH
Holger
[1] http://topbraid.org/spin/api/
[2] http://www.topquadrant.com/products/topbraid-live/
On 2/27/2015 11:00, Jack Hodges wrote:
I have exported a bunch of graphs to a .ttl file and then imported it
into fuseki. If I run a query on fuseki to see if the functions are
there - they are. If I run a query on fuseki to show the spin:body or
spin:constraints they show them as anonymous objects (is that the
correct term?). If I run queries on the classes and properties that my
spin functions are working on I get the right results. But I cannot
get results by executing my spin functions.
So the classes and properties exist, the bindings exist, the spin
functions exist, the prefixes are defined, but the functions don't
execute. Other functions execute, such as the TopBraid functions (I
tested with afn:localname for example) and they work fine.
By the way, these functions have been tested in TBCME and work fine.
If I take the strings I am using in fuseki and run them in the SPARQL
window of TBCME they also work fine. I checked the list of models that
are being exported with mine and noted that some are not exported,
such as skos. Is this a problem?
I must be missing something simple here. Any comments?
Jack
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