/** {@inheritDoc} */
 @Override
 public void onChange(final Saveable o, final XmlFile file) {
   final JobConfigHistory plugin = getPlugin();
   LOG.log(FINEST, "In onChange for {0}", o);
   if (plugin.isSaveable(o, file)) {
     final HistoryDao configHistoryListenerHelper = getHistoryDao(plugin);
     configHistoryListenerHelper.saveItem(file);
   }
   LOG.log(FINEST, "onChange for {0} done.", o);
 }