problem with a function in a javascript file

[Pierluigi Ritrovato]

I have defined a spin function that make some simple computation through a javascript snippet and works well.

Now I moved the snipped code in a js file and it doesn't work!

this is the spin function

tracking:isSmallDiff  a       spin:Function ;

        rdfs:label            "computes if difference is small"^^xsd:string ;

        rdfs:subClassOf       spin:Functions ;

        spin:constraint       [ a              spl:Argument ;

                                spl:predicate  sp:arg3 ;

                                spl:valueType  xsd:integer

                              ] ;

        spin:constraint       [ a              spl:Argument ;

                                spl:predicate  sp:arg2 ;

                                spl:valueType  xsd:integer

                              ] ;

        spin:constraint       [ a              spl:Argument ;

                                spl:predicate  sp:arg1 ;

                                spl:valueType  xsd:integer

                              ] ;

        spin:returnType       xsd:integer ;

        spinx:javaScriptFile  "isSmallDiff.js"^^xsd:string .

 

the js code is:

function isSmallDiff(arg1, arg2, arg3) {

if (Math.abs(arg1-arg2) < arg3) 

return 1; 

else 

return 0;

}

I copied the JS file any pace in my file system!

thank you very much in advance for any help.

Pierluigi

PS curiosity: the javascript code works only if I use arg1, arg2, .... arg5 as argument variables? 

[Scott Henninger]

Pierluigi; Is the file defined in the same folder as the file with the SPIN function?  It does need to be in the TopBraid workspace, and you can provide a relative or full path name for the js file.  Paths start with "/" in the root folder of the workspace, for example /TopBraid/common/foaf.ttl

-- Scott

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[Pierluigi Ritrovato]

Scott thanks for reply.

The JS file is in the same dir of the spin rule file in the TB workspace (C:\Users\Pierluigi\TBCFreeWorkspace\MIVIA Tracking).

I'm testing the function with a simple query like this:

SELECT ?x

WHERE {

    LET (?x := tracking:isSmallDiff (2,2,3)) .

}

I'm using Top Braid Composer Free Edition 4.5.0 on Windows 8.1.

[Scott Henninger]

Pierluigi; Attached are two files that I've verified work with the example you've provided in TBC-Free.  Perhaps there is some detail that is different in your files.

Just as information, the W3C version of LET is BIND, i.e.:
  BIND(tracking:isSmallDiff (2,2,3) AS ?x)

-- Scott

[Pierluigi Ritrovato]

Scott: Now I see. it is a matter on namespace. 

For a mistake in my rule file the base URI was an older one!

thanks again

Pierluigi

Il giorno mercoledì 14 gennaio 2015 19:13:25 UTC+1, Pierluigi Ritrovato ha scritto: