My individual employee is a type of Technical, Manager and Programmer. I
want to replace all these classes with only one class Worker. I used the
following code, it supposed to replace it but it does not.
All these classes are defined in the code.
if ((employee.hasOntClass(technical)) &&
(employee.hasOntClass(programmer)) && (employee.hasOntClass(manager)))
{
employee.setOntClass(worker);
JOptionPane.showMessageDialog(null, "here are the three classes");
}
Though it display the message in the Dialog.
On Fri, Jan 27, 2017 at 12:57 PM, Lorenz B. <
[email protected]> wrote:
> Why should a method called "listOntClasses" just return a single class?
> The usage of the plural form should be clear enough. And Javadoc Javadoc
> Javadoc,...
> > Dave, I have read some where that Individual#listOntClasses will only
> list
> > one class at one time.
> >
> > And yes employee is individual and programmer, manager and worker are
> class
> > variables.
> >
> > On Fri, Jan 27, 2017 at 12:23 AM, Dave Reynolds <
> [email protected]>
> > wrote:
> >
> >> On 26/01/2017 21:08, tina sani wrote:
> >>
> >>> Hi Dave, Will this work?
> >>>
> >>> if ((employee1.hasOntClass(programmer)) &&
> >>> ((employee1.hasOntClass(manager)) &&((employee1.hasOntClass(worker))
> >>> {
> >>>
> >>> }
> >>>
> >> Try it and see!
> >>
> >> There's not enough there for us to tell for sure. If the variable
> >> employee1 is an Individual and if variables programmer, manager and
> worker
> >> are all Resources correctly corresponding to your classes then that will
> >> test if that Individual has all three of those classes in the model
> >> (whether asserted or inferred by rules).
> >>
> >> To add to my earlier answer, if you have an Individual rather than just
> >> and OntResource then Individual#listOntClasses will enable you to
> enumerate
> >> the classes conveniently.
> >>
> >> Dave
> >>
> >>
> >> On Thu, Jan 26, 2017 at 11:32 PM, Dave Reynolds <
> [email protected]
> >>> wrote:
> >>>
> >>> On 26/01/2017 15:20, tina sani wrote:
> >>>> How can I get all the classes of which an individual is a type? After
> >>>>> Jena
> >>>>> rules executed, my individual has multiple class like:
> >>>>> Employee001 is of type: Worker, Programmer, Manager.
> >>>>>
> >>>>> So can I get all these three classes in Jena ? I have read somewhere
> >>>>> that
> >>>>> getOntClass() only return one class at a time and that is on random
> >>>>> basis.
> >>>>>
> >>>>> See OntResource#listRDFTypes or, if you just have a Resource then
> >>>>>
> >>>> Resource#listProperties(RDF.type) or, as Charles says, use SPARQL.
> >>>>
> >>>> Dave
> >>>>
> >>>>
> >>>>
> >>>> ---
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> >>>>
> >>>>
> >>>>
> >> ---
> >> This email has been checked for viruses by Avast antivirus software.
> >> https://www.avast.com/antivirus
> >>
> >>
> --
> Lorenz Bühmann
> AKSW group, University of Leipzig
> Group: http://aksw.org - semantic web research center
>
>
