@Override
protected Object getValueKey(Object value) {
OWLAnnotation annotation = null;
if (value instanceof OWLAnnotationAssertionAxiom) {
OWLAnnotationAssertionAxiom axiom = (OWLAnnotationAssertionAxiom) value;
if (axiom.getAnnotations().isEmpty()) {
return axiom.getAnnotation();
} else {
return axiom;
}
} else if (value instanceof AbstractAnnotationsList.AnnotationsListItem) {
annotation = ((AbstractAnnotationsList.AnnotationsListItem) value).getAnnotation();
} else if (value instanceof OWLAnnotation) {
annotation = (OWLAnnotation) value;
}
return annotation;
}
