Ok, to avoid sm:ReturnSPARQLResults, you could use
sml:SerializeSPARQLResults, which always produces a string only. Then
use sml:ReturnText at the end of the function.
Holger
On 24/08/2017 9:24, Steve Ray wrote:
Holger,
Thanks for the example. My problem is that TBL is being called by a
system that expects to issue SPARQL queries to a SPARQL endpoint. So,
for your example, it might be called like this:
SELECT ?result
WHERE {
BIND (<http://example.org/returnSPARQLTest#Function_1>() AS ?result)
}
…which gives the result I was seeing before – the answer shows up in
the TBC pane, but not returned to the calling routine. Any thoughts?
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected]
Phone: (650) 587-3780
Cell: (202) 316-6481
Skype: steverayconsulting
cid:[email protected]
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Holger Knublauch
*Sent:* Wednesday, August 23, 2017 3:40 PM
*To:* [email protected]
*Subject:* Re: [topbraid-users] Not clear how to use
sml:ReturnSPARQLResults module
Hi Steve,
it depends on how you invoke this. In order to have it appear in a
browser, you need to wrap the script into a SPARQLMotion function, as
shown in the attached file. Then call it using
http://localhost:8083/tbl/sparqlmotion?id=returnSPARQLTest:Function_1
If you just execute the module from the graph view in TBC, the result
will be displayed in a TBC window.
HTH
Holger
On 24/08/2017 4:45, Steve Ray (CMU) wrote:
Hi,
I have a SPARQLMotion script that runs fine, which ends with
sml:ReturnText. I can invoke it from a browser using the SPARQL
endpoint at localhost and it indeed sends me back the text string
that is hard-coded in the sml:ReturnText module.
I made a very similar script that differs only in that it ends
with sml:ReturnSPARQLResults, where I was hoping/expecting that
when invoking it, I would get a JSON-serialized result of a SELECT
query where I am requesting the value of three variables. When I
run it, the three variables show up in a TBC pane, but I’m not
getting the results at the browser. Am I thinking of this wrong?
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected] <mailto:[email protected]>
Phone: (650) 587-3780
Cell: (202) 316-6481
Skype: steverayconsulting
cid:[email protected]
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