Chang PreFix for Ontology

I use protege 4 to merge 2 ontology sucessful and save as Onab.owl. In this file, I don't know how to change URI of ontology by OWL API. Could you help me use OWL API to change it Thank you very muc开发者_开发问答h.

---

You can get and set the prefix name using methods of the org.semanticweb.owlapi.util.DefaultPrefixManager class. Good luck!

---

Create a SetOntologyID instance with the new IRI you want and apply it to the ontology:

manager.applyChange(ontology, setOntologyID());

Then save the ontology, its IRI will have been changed.