/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/RecoVertex/VertexPrimitives/interface/VertexFitter.h

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#ifndef _VertexFitter_H_
#define _VertexFitter_H_

#include "RecoVertex/VertexPrimitives/interface/CachingVertex.h"
#include "TrackingTools/TransientTrack/interface/TransientTrack.h"
#include "DataFormats/BeamSpot/interface/BeamSpot.h"

#include <vector>

template <unsigned int N>
class VertexFitter {

public:

  VertexFitter() {}

  virtual ~VertexFitter() {}

  virtual CachingVertex<N> 
  vertex(const std::vector<reco::TransientTrack> & tracks) const = 0;

  virtual CachingVertex<N> 
  vertex(const std::vector<typename CachingVertex<N>::RefCountedVertexTrack > & tracks) const = 0;
  
  virtual CachingVertex<N> 
  vertex(const std::vector<typename CachingVertex<N>::RefCountedVertexTrack > & tracks, const reco::BeamSpot & spot ) const = 0;


  virtual CachingVertex<N> 
  vertex(const std::vector<reco::TransientTrack> & tracks, const GlobalPoint& linPoint) const = 0;

  virtual CachingVertex<N> 
  vertex(const std::vector<reco::TransientTrack> & tracks, const GlobalPoint& priorPos,
         const GlobalError& priorError) const = 0;

  virtual CachingVertex<N> 
  vertex(const std::vector<reco::TransientTrack> & tracks, const reco::BeamSpot& beamSpot) const = 0;

  virtual CachingVertex<N> 
  vertex(const std::vector<typename CachingVertex<N>::RefCountedVertexTrack > & tracks, 
         const GlobalPoint& priorPos,
         const GlobalError& priorError) const = 0;

//   virtual CachingVertex<N> 
//   vertex(const RefCountedVertexSeed vtxSeed) const = 0;

  virtual VertexFitter * clone() const = 0;

};

#endif