Re: [dotNetRDF-Support] List all objects of OntologyClass type

[Rob V. <rv...@do...>]

Hi Alex

This appears to be the same question you asked at
http://answers.semanticweb.com/questions/19984/dotnetrdf-list-all-ontology-c
lasses

To reproduce my answer try the following:

//This gets the class for things which are declared to be a class
OntologyClass classOfClasses =
g.CreateOntologyClass(g.CreateUriNode("owl:Class"));

//This iterates over the things that are a class
foreach (OntologyResource class in classOfClasses.Instances)
{
  //Do what you want with the class
}
Based on that question I realized that there are some pieces of the Ontology
API missing so I filed an issue (CORE-293) for this -
http://dotnetrdf.org/tracker/Issues/IssueDetail.aspx?id=293
If you have further ideas on this please reply to this email or add comments
on the issue tracker.
I have already made some changes on this in our source control ­ see
https://bitbucket.org/dotnetrdf/dotnetrdf/commits/1142f2971eefb8fffb71431530
15e960e22b8d00 ­ for some new code that tries to address the lacking
features.
Hope this helps,
Rob

From:  Aleksandar Zivaljevic <al...@da...>
Reply-To:  dotNetRDF User Help and Support
<dot...@li...>
Date:  Thursday, December 13, 2012 2:01 AM
To:  <dot...@li...>
Subject:  [dotNetRDF-Support] List all objects of OntologyClass type

> Hi,
> 
> I am trying to enumerate all classes (OntologyClass type) in OntologyGraph;
> the code would go like:
> 
> Dim g As New OntologyGraph
> FileLoader.Load(g, strURI)
> For Each cl As OntologyClass in g.OntologyClases (OntologyClases is not the
> real enum)
>      'do some work on classes
> Next
> 
> Is this possible with DotNetRDF?
> 
> Regards,
> Alex
> 
> 
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