@OnLoad
 public void onLoad(Result<Boolean> result) {
   LOG.fine("@Onload - synchronizing count value from Store");
   _countStore.load(
       0L,
       result.from(
           loadedValue -> {
             if (loadedValue != null) this._count = loadedValue;
             return true;
           }));
 }
 @OnSave
 public void onSave() {
   LOG.fine("onSave called!");
   _countStore.save(_count, x -> Result.ignore());
 }