Manipulate owl file using Protege-OWL API.(delete classes,delete properties) - class

Question

I need to manipulate owl file using the Protege-Owl API. You know, creating classes and properties isn't too difficult.But I don't know how to delete a class or property.If we treat the owl file as a graph, deleting an class means deleting an node and its direct edge.For exemple:
<owl:unionOf rdf:parseType="Collection">
<rdf:Description rdf:about="&data;DataBundle"/>
<rdf:Description rdf:about="&data;DataItem"/>
</owl:unionOf>
if I want to delete the class DataItem,
how should I do it using Protege-OWL API? Does RDFResource.delete()can achieve this? I have tried it,but I can't achieve this,maybe there is something wrong.
what will I get after I delete the DataItem?
If DataItem is the domain of an property, what will I get after I delete it?
I hope to get your answer.
Edit: the Protege OWL API is the api described here, not the OWL API described here.

Answer 1

#Joshua Taylor,Thank you for your answer!I'm a new user and I make a mistake for posting this problem twice.Sorry for that.I make some mistakes in my code at first and today I tried to fix it.The following codes can delete a class or property.
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URI;
import edu.stanford.smi.protegex.owl.ProtegeOWL;
import edu.stanford.smi.protegex.owl.jena.JenaOWLModel;
import edu.stanford.smi.protegex.owl.model.RDFResource;
public class DeleteClass {
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
//get model from an owl file
String filePath = "D:\\ss.owl";
FileInputStream inFile= new FileInputStream(filePath);
Reader in = new InputStreamReader(inFile,"UTF-8");
JenaOWLModel jenaOwlModel = ProtegeOWL.createJenaOWLModelFromReader(in);
//get an class from the model
RDFResource oneClass=jenaOwlModel.getRDFResource("Person");
RDFResource oneDataProperty=jenaOwlModel.getRDFResource("age");
//delete the resource
oneClass.delete();
oneDataProperty.delete();
//save the model to another owl file
URI file=URI.create("file:///D:/ssChange.owl");
System.out.println(file);
jenaOwlModel.save(file);
//System.out.println(oneClass);
}
}