class HopRow implements Serializable {

  @Override public int hashCode() {
    if (row==null) {
      return 0;
    }
    int hashValue = 0;
    for (int i=0;i<row.length;i++) {
      if (row[i]!=null) {
        hashValue^=row[i].hashCode();
      }
    }
    return hashValue;
  }

  public  HopRow();
  public  HopRow( Object[] row );

}