code: public void setDataHandler(DataHandler dataHandler) {
          this._dataHandler = dataHandler;
          if(dataHandler == null) {
              _properties.remove(PARAM_DATA_HANDLER_CLASS);
          } else {
              if (dataHandler.getClass() != DefaultDataSetHandler.class &&
                  dataHandler.getClass() != DefaultDataStoreHandler.class) {
                  _properties.setProperty(PARAM_DATA_HANDLER_CLASS, dataHandler.getClass().getName());
              }
          }
      }
docs: Sets the data handler of the target {#link krati.store.DataStore DataStore}.
  
  @param dataHandler