Re: Scoping external JSON-LD context inside objects?

Tom,

The JSON-LD list would be a better place to ask:
public-linked-json@w3.org

David

On 01/30/2015 11:37 AM, Tom De Nies wrote:
> Hello RDF team,
>
> this question is mainly directed towards the JSON-LD guys.
>
> I'm in the situation where I want to create an easy way to convert an
> existing JSON model (which I can't edit) to JSON-LD.
> Obviously, I'm using an external context document for that, so all one
> needs to do to convert their JSON to -LD is to add 1 @context property.
>
> However, there are some duplicate terms in this model, and
> unfortunately, they refer to different things.
> For example, there is the term "id". When it occurs anywhere in the
> document, its property should be http://example.org/id, and its value
> should be a UUID (thus, the @type should be a xsd:string). When it
> occurs inside an "object" however, it should be the subject of the
> corresponding triple.
>
> So let's consider an example:
>
> {
>    "id" : "123.456.789",
>    "object" : {
>                     "id" : "http://example.org/myObject"
>     }
> }
>
> In N3, this should become something like this:
>
> [] <http://example.org/id> "123.456.789";
>     <http://example.org/object> <http://example.org/myObject> .
> <http://example.org/myObject> a <http://example.org/Object> .
>
> How do I model this correctly in JSON-LD?
>
> Basically, I would like to put something in my context that resembles this:
>
>
> {
>    "id" : {
>        "@id" : "http://example.org/id",
>        "@type" : "xsd:string"
>      },
>    "object" : {
>        "@id" : "http://example.org/object",
>        "@type" : "@id"
>      },
>     "object.id <http://object.id>" : "@id"
> }
>
> Right now all I can see as a solution is to force the developers to add
> the following to every object in their JSON:
> "@context" : {
>    "id" : "@id"
> },
> Which would be quite a nuisance compared to just specifying 1 external
> context...
> Am I missing something?
>
> Thanks in advance!
>
> Regards,
> Tom
> Tom De Nies
> Researcher Semantic Web
> Ghent University - iMinds
> Faculty of Engineering and Architecture
> Department of Electronics and Information Systems - Multimedia Lab
> Gaston Crommenlaan 8 bus 201, B-9050 Ledeberg-Ghent, Belgium
>
> e: tom.denies@ugent.be <mailto:tom.denies@ugent.be>
>
> URL: http://multimedialab.elis.ugent.be
>

Received on Friday, 30 January 2015 22:07:54 UTC