@Override
 public String getDocumentationUrl(AnnotatedParameter parameter, Object content) {
   final Expose expose = parameter.getAnnotation(Expose.class);
   String ret;
   if (content == null) {
     Class<?> clazz = parameter.getDeclaringClass();
     ret =
         getExposedUrl(
             parameter.getParameterName(), vocabFromClass(clazz), termsFromClazz(clazz), expose);
   } else {
     ret =
         getExposedUrl(
             parameter.getParameterName(), vocabFromBean(content), termsFromBean(content), expose);
   }
   return ret;
 }