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ProtoJet.h

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#ifndef JETREC_PROTOJET_H
#define JETREC_PROTOJET_H
//***************************************************************************
// Filename : ProtoJet.h
// Author   : Ambreesh Gupta
// Created  : Feb, 2000
//
// DESCRIPTION
//
// ProtoJets are the inputs to JetFinders.  In the present design, a ProtoJet
// is simply a container with a few needed methods like energy and cell list
// accessors.  One might expect this to be a base class with derivatives
// like JetClusterProtoJet or JetTowerProtoJet, but for the moment we use
// the ProtoJet as a fairly dumb data exchange class that works by copying.
// The reason is that the inheritances above will be most useful to the extent
// that they provide navigation capabilities in a type-safe way and until
// that design is in hand, we stay with the simpler approach.
//
// HISTORY
//   xxXXXxx agupta.  First version
//   21Sep01 ploch    Implement Tucson agreement
//
// BUGS:
//
//***************************************************************************


#include "GaudiKernel/ContainedObject.h"
#include "CLHEP/Vector/LorentzVector.h"

// Gaudi Class ID
static const CLID CLID_PROTOJET = 3002;

#include "NavigationRep/Navigable.h"
#include "NavigationRep/NavProtoJetToken.h"

class ProtoJet : public ContainedObject, public Navigable
{
 public:

  // Gaudi class id stuff
  static const CLID& classID() { return CLID_PROTOJET; }
  virtual const  CLID& clID() const   { return CLID_PROTOJET; }

  // destructor 
  virtual ~ProtoJet() { } ;

  // accessors
  virtual HepLorentzVector p() const
  {
    return m_p ;
  };

  double energy() const { return m_p.e(); };
  double ex() const { return m_p.px(); };
  double ey() const { return m_p.py(); };
  double ez() const { return m_p.pz(); };
  double et()  const { return sqrt( pow(ex(),2)+ pow(ey(),2) ); }
  double eta() const { return m_p.pseudoRapidity(); };
  double phi() const { return m_p.phi(); };
  double theta() const { return m_p.theta(); };

  // copy constructor
  // ProtoJet( const ProtoJet& pJet );

  virtual       NavProtoJetToken& getNavToken()        = 0;
  virtual const NavProtoJetToken& getNavToken()  const = 0;
    // from Navigable base class

 protected:
  
  ProtoJet( const HepLorentzVector& p ) :  m_p(p) { };
  HepLorentzVector m_p;

 private:

};
#endif

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