Subclassing information

bilred / jenabean

Automatically exported from code.google.com/p/jenabean

0 stars 0 forks source link

Hello,

Do you plan also to store also hierarchy of the classes, which are
instanciated in the Jena model.

What steps will reproduce the problem?
1. Compile the attached file (Test.java)
2. Observe the output

What is the expected output? 

I expected there will appear a statement:

:B rdfs:subClassOf :A .

What do you see instead?

All but not the statement.

@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix daml:    <http://www.daml.org/2001/03/daml+oil#> .

<http://thewebsemantic.com/javaclass>
      a       owl:AnnotationProperty .

<http://unimore.ecosystem.zombie.sensor/B/23894119>
      a       <http://unimore.ecosystem.zombie.sensor/B> .

<http://unimore.ecosystem.zombie.sensor/B>
      a       owl:Class ;
      <http://thewebsemantic.com/javaclass>
              "unimore.ecosystem.zombie.sensor.A$B" .

What version of the product are you using? On what operating system?

The last checkout from SVN

Best,

Maciej

Original issue reported on code.google.com by mgawine...@gmail.com on 19 May 2008 at 4:54

Attachments:

Test.java

No, I've not done that intentionally, although I'm always open to discussion. The primary issue is that OWL allows multiple inheritance. In order to keep it simple I've focused the project on making it easy to assert new data, and pull specific info back out for use in a java app. You'll find, I believe, that the easiest and quickest way to have classification hierarchies is either writing a little N3 and loading it first into your model, or using and ontology editor. I really sensed early on that a java class hierarchy sometimes differs from the ideal OWL or RDFS hierarchy...two different worlds that are difficult to bridge, so we're settling for mostly data. But, again, if you're really into java like myself, it's more fun to just drive everything from that point of view...so I think I'll begin adding this as an optional feature.

bilred / jenabean

Subclassing information #5