[tbc-users] Re: Nothing being returned from function.

[Scott Henninger]

Barb; It seems a step is missing somewhere.  I am attaching a file that implements your function.  The best source of information on SPIN functions is at:   http://composing-the-semantic-web.blogspot.com/2009/01/understanding-spin-functions.html -- Scott Barb wrote: I'm calling a function (getHierarchy()) from a "Bind by Select" .. the select query is a follows .. "SELECT ?name WHERE {LET (?name := :getHierarchy()) .} The called function is very simple. For now I'm just trying to pass back a literal. The spin:body in the function contains: SELECT ?name WHERE {LET (?name := smf:buildString ("ThisIsATestXYZ")) .} Nothing is being returned. The return type is set to xsd:string. Barb --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TopBraid Composer Users" group. To post to this group, send email to topbraid-composer-users@googlegroups.com To unsubscribe from this group, send email to topbraid-composer-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/topbraid-composer-users?hl=en -~----------~----~----~----~------~----~------~--~---

# Saved by TopBraid on Mon Jul 20 12:19:56 CDT 2009
# baseURI: http://ThompsonReuters.com/ThisIsATest
# imports: http://topbraid.org/sparqlmotionfunctions
# imports: http://topbraid.org/sparqlmotionlib

@prefix sp:      <http://spinrdf.org/sp#> .
@prefix spin:    <http://spinrdf.org/spin#> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
@prefix smf:     <http://topbraid.org/sparqlmotionfunctions#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix :        <http://ThompsonReuters.com/ThisIsATest#> .

<http://ThompsonReuters.com/ThisIsATest>
      a       owl:Ontology ;
      owl:imports <http://topbraid.org/sparqlmotionlib> , 
<http://topbraid.org/sparqlmotionfunctions> ;
      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .

:getHierarchy
      a       spin:Function ;
      rdfs:label "get hierarchy"^^xsd:string ;
      rdfs:subClassOf spin:Functions ;
      spin:body
              [ a       sp:Select ;
                sp:resultVariables (_:b1) ;
                sp:where ([ a       sp:Let ;
                            sp:expression
                                    [ a       smf:buildString ;
                                      sp:arg1 "ThisIsATestXYZ"
                                    ] ;
                            sp:variable _:b1
                          ])
              ] ;
      spin:returnType xsd:string .

_:b1  sp:varName "name"^^xsd:string .