//------------------------------------------------------------------------
//
// Description:
//	Class HepID :
//	This class allows ID numbers, ID strings or both to be used
//	to uniquely identify histograms.  The actual use of this
//	class depends on the concrete package that implements HepTuple
//
//
// Environment:
//	Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//	Scott Metzler		Original author
//      Philippe Canal          Add access to a manager dependent part
//
//------------------------------------------------------------------------

#ifndef HEPID_H
#define HEPID_H

#ifndef ZMENVIRONMENT_H
  #include "ZMutility/ZMenvironment.h"
#endif
#include <string>

class HepID {
public: 
  // constructors
  HepID(int theNumber);
    // constructor with number
  HepID(const std::string theString);
    // constructor with string
  HepID(int theNumber,const std::string theString);
    // constructor with both number and string

  // accessors
  inline bool isIDnumberSet() const { return _numSet; };
    // number used in constructor
  inline bool isIDstringSet() const { return _stringSet; };
    // string used in constructor

  inline int IDnumber() const { return _idNumber; };
    // the id number
  std::string IDstring() const { return _idString; };
    // the id string
  
  inline operator int() const { return _idNumber; };
  inline operator std::string() const { return _idString; };

private:
  bool _numSet;
  bool _stringSet;
  int _idNumber;
  std::string _idString;
  
};

#endif