How to reference a property of an Object Relation?

[Andrew Arnold]

Hi,

I have  a property shape that specifies the property levelElevation for the class 'Asset'. The property shape presently specifies levelElecation as an Object Relation to a class 'Level'. I want it to refence the the elevation property of the Level class.  

How can I do this?

thanks,

Andrew

 

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Current property shape specificiation:

test_harness_1:Asset-levelElevation
  a sh:PropertyShape ;
  sh:path test_harness_1:levelElevation ;
  sh:class test_harness_1:Level ;
  sh:group test_harness_1:DataPropertyGroup ;
  sh:name "level_elevation" ;
  sh:order -3.5 ;

[David Price]

Hi Andrew,

Seems like you do not actually want a relationship (i.e. object property). Seems like you want a derived property value that follows a path through the graph.

The SHACL syntax for that is:

ex:Asset-levelElevation

  a sh:PropertyShape ;

  sh:path (

      ex:onLevel

      ex:elevation

    ) ;

  sh:datatype xsd:string ;

  sh:name “level elevation" ;

.

where onLevel is a property of Asset and elevation is a property of Level.

Cheers,

David

UK +44 (0) 7788 561308
US +1 (336) 283-0808‬

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[Bohms, H.M. (Michel)]

This is weird.

Yesterday I made an example and I was in doubt whether to check if I did it right here.

“

A SHACL coding example for the fact that the underlying datatype for the attribute ‘dbl:numberOfBuildingUnits’ for a dbl:Building is an xsd:integer:

 

dbl:Building a rdfs:Class, sh:NodeShape ;

      sh:property [

            sh:path (dbl:numberOfBuildingUnits qudt:numericValue) ;

            sh:datatype xsd:integer ;

      ] .

“

Quite a similar example, also for an asset as below!

 

Chance does not exist? 😊

 

Anyway, David, my example is also ok?

 

Thx michel

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