Extending the DescribeClass sample to show DatatypeProperty

[John Ibbotson <jo...@uk.ibm.com>]

I want to extend the Jena DescribeClass sample to show any 
DatatypeProperties associated with a class. How do I do this ?
Regards,
John







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Re: Extending the DescribeClass sample to show DatatypeProperty

[Ian Dickinson <ia...@epimorphics.com>]

Hi John,
On 04/07/11 10:43, John Ibbotson wrote:
> I want to extend the Jena DescribeClass sample to show any
> DatatypeProperties associated with a class. How do I do this ?

I'm not 100% sure what you mean by "associated with", but taking a guess 
that you mean a frame-like view [1], you'll need to call 
listDeclaredProperties() on the OntClass object, then iterate over the 
returned results and filter out the ones that return true to 
isDataTypeProperty().

How you incorporate that into the output is rather harder to advise, 
unless you can supply more details (such as an example of the display 
you're trying to create).

Hth,
Ian

[1] http://openjena.org/how-to/rdf-frames.html



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