@Override
 public void editScalarProperty(String propertyKey, String value) {
   settingsDao.updateScalarProperty(propertyKey, value);
 }
 @Override
 public List<String> findListProperty(String propertyKey) {
   return settingsDao.findList(propertyKey);
 }
 @Override
 public Map<String, String> findMapProperty(String propertyKey) {
   return settingsDao.findMap(propertyKey);
 }
 @Override
 public String findScalarProperty(String propertyKey) {
   return settingsDao.findScalar(propertyKey);
 }