On 30/07/15 03:23, Umar Minhas wrote:
Hi,
I am working with an OWL file. And lets say one of the classes is defined
as:
<owl:Class rdf:about="EmployeeCompensation">
<rdfs:alias>salary</rdfs:alias>
<rdfs:alias>earning</rdfs:alias>
....
< other properties defined ... omitted>
....
</owl:Class>
The above example states that I have an OWL Class "EmployeeCompensation"
and I have defined "salary" and "earning" as synonyms for this class using
"rdfs:alias" tag.
There is no rdfs:alias. If you want to create a new metadata property
for annotating classes it would better to do so in your own vocabulary.
How can I read all aliases for Class EmployeeCompensation using the Jena
API. Any help/pointers are much appreciated.
Just like any other RDF query you can use listStatements,
listProperties, etc.
First, since rdfs:alias isn't a real thing and isn't in the RDFS
vocabulary you'll need to create a property to allow you to refer to
that, e.g.
Property alias = ResourceFactory.createProperty(RDFS.getURI(), "alias");
Then you can do things like:
for (StmtIterator i = myclass.listProperties(alias); i.hasNext();) {
System.out.println( i.next().getObject() )
}
Dave
