code: public void updateSourceComboBoxes(final Datastore datastore, final Table table) {
          _datastore = datastore;
          _table = table;
          for (final SourceColumnComboBox sourceColComboBox : _sourceColumnComboBoxes) {
              sourceColComboBox.setModel(datastore, table);
          }
      }
docs: updates the SourceColumnComboBoxes with the provided datastore and table