How to use

openConnection

method

in

org.datacleaner.connection.JsonDatastore

  public List<Column> getColumns() {
    if (_columns == null) {
      try (DatastoreConnection openConnection = _jsonDatastore.openConnection()) {
        _columns = openConnection.getDataContext().getDefaultSchema().getTable(0).getColumns();
      }
    }
    return _columns;
  }
}