code: public SelectorName qualifiedForm(NameFactory nameFactory) {
          if (expandedForm) {
              return new SelectorName(nameFactory.create(this.name).getString(nameFactory.getNamespaceRegistry()));
          }
          return this;
      }
docs: Returns this selector in qualified form (see #3.2.5 of the JCR spec)
  
  @param nameFactory a {@link org.modeshape.jcr.value.NameFactory} instance; may not be null
  @return a {@link org.modeshape.jcr.query.model.SelectorName} instance for which the name is always in qualified form; never null