class Series {
  String ID;
  String Title;
  int ContStartDate;
  int ContEndDate;
  int AccumStartDate;
  int AccumEndDate;
  int Items;
  float Metres;
  int drawRow;
  int Span;
  String[] Controlling_Series;
  String[] Related_Series;
  String[] Succession_Series;
  String[] Recording_Agencies;
  String[] Controlling_Agencies;

  Series(String _ID, String _Title, int[] _Dates, int _Items, float _Metres, String[][] _Links, ArrayList ParentList){
    ID = _ID;
    Title = _Title;

    ContStartDate = min(_Dates[0],_Dates[1]);
    ContEndDate = max(_Dates[0],_Dates[1]);
    AccumStartDate = min(_Dates[2],_Dates[3]);
    if (AccumStartDate < 1760) println("bad accum date: " + AccumStartDate);
    AccumEndDate = max(_Dates[2],_Dates[3]);
    Items = _Items;
    Metres = _Metres;
    Controlling_Series = _Links[0];
    Related_Series = _Links[1];
    Succession_Series = _Links[2];
    Recording_Agencies = _Links[3];
    Controlling_Agencies = _Links[4];

    if (sort_by == 0) {
      Span = ContEndDate-ContStartDate;   
    } 
    else {
      Span = AccumEndDate-AccumStartDate;    
    }  
     ParentList.add(this);
  }
}

class ContStartDateComparator implements Comparator{
   int compare(Object O1, Object O2){
    Series S1 = (Series) O1;
    Series S2 = (Series) O2; 
     int comp = S1.ContStartDate - S2.ContStartDate;
    return comp;
  }
}

class AccumStartDateComparator implements Comparator{
   int compare(Object O1, Object O2){
    Series S1 = (Series) O1;
    Series S2 = (Series) O2; 
    int comp = (S1.AccumStartDate - S2.AccumStartDate);
    return comp;
  }
}