@Override
  public Istatistik getRowData(String rowKey) {
    // In a real app, a more efficient way like a query by rowKey should be implemented to deal with
    // huge data

    @SuppressWarnings("unchecked")
    List<Istatistik> binalar = (List<Istatistik>) getWrappedData();

    for (Istatistik r : binalar) {
      if (r.getBinaId() == Integer.parseInt(rowKey)) return r;
    }

    return null;
  }
 @Override
 public Object getRowKey(Istatistik bina) {
   return bina.getBinaId();
 }