IKinematic.h

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//===========================================================
// Interface Base class needed for function objects
//===========================================================

#ifndef ATLFAST_IKINEMATIC_H
#define ATLFAST_IKINEMATIC_H

#ifndef ATLFAST_IASSOCIATIONMANAGER_H
#include "AtlfastEvent/IAOO.h"
#endif

#ifndef EVENTKERNEL_INAVIGABLE4MOMENTUM_H
#include "EventKernel/INavigable4Momentum.h"
#endif

/*
#ifndef ATLFAST_IAODNAVIGATION_H
#include "AtlfastEvent/IAODNavigation.h"
#endif
*/

#ifndef HEPLORENTZVECTOR_H
#include "CLHEP/Vector/LorentzVector.h" 
#define HEPLORENTZVECTOR_H
#endif

class MsgStream;

namespace Atlfast {

  class IKinematic;
  MsgStream& operator << ( MsgStream&, const IKinematic& );
  MsgStream& operator << ( MsgStream&, const IKinematic * const );
  class IKinematic: 

    virtual public IAOO, 
    virtual public INavigable4Momentum{

    public:
    
      virtual HepLorentzVector  momentum() const  = 0 ;
      virtual double  eta() const     = 0 ;
      virtual double  phi() const     = 0 ;    
      virtual double  pT()  const     = 0 ;
      virtual double  eT()  const     = 0 ;
      virtual double  mT()  const     = 0 ;

      virtual ~IKinematic(){};
      virtual IKinematic* clone() const = 0 ; 

      //Coordinates for debugging
      virtual void print(const std::string&, std::string s="") const = 0;
      
      // I4Momentum stuff
      virtual double e()   const {return this->momentum().e();}
      virtual double m()   const {return this->momentum().m();}
    };
  
}
#endif

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