On 17/07/2019 14:42, Fan Li wrote:
Hi Hogler,
Thanks much for your follow-up! I have been exploring the 1st option
you offered and I sort of understand how to add sh:ConstraintComponent
instance in dash.ttl by now. My question is whether I should just
modify the dash.ttl file or somehow extend it by creating my own
constraint declaration file importing dash.ttl?
No, dash.ttl is a system file that cannot be modified and will be
overwritten with the next TopBraid update.
Instead, create your own .ttl file that owl:imports dash.ttl and then
declares the additional constraint component(s). Then owl:import that
.ttl file into your Ontology asset collection, using the Edit Includes
dialog.
Holger
I will look into the 2nd option you just mentioned now. I will report
back later.
Thanks again,
Fan
On Sunday, July 14, 2019 at 2:10:18 AM UTC-4, Holger Knublauch wrote:
Hi Fan Li,
I was just reminded that we do have support for one such pattern
built into EDG already. Take a look at the class
edg:PropertyValueSet, which describes the values of a (reference)
dataset by means of class, graph and property. This is meant to be
used in cases where you want to use something like a Country
*Code*, not the Country URI resource, as values. You can define an
instance of edg:PropertyValueSet to point at these values and then
use edg:propertyValueSet to link a property shape with your
edg:PropertyValueSet. This will then apply do constraint checking
to verify that the values are in fact valid country codes.
Does this resemble your use case?
Holger
On 12/07/2019 04:44, Fan Li wrote:
For example, if there is an attribute "country code", can I
constraint its value to one of them from the "Country Code"
reference dataset? Thanks!
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