BasicMultiVertexState.h

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#ifndef BasicMultiVertexState_H
#define BasicMultiVertexState_H

#include "RecoVertex/VertexPrimitives/interface/BasicVertexState.h"
#include "RecoVertex/VertexPrimitives/interface/VertexState.h"
#include "RecoVertex/GaussianSumVertexFit/interface/MultiVertexStateCombiner.h"

class BasicMultiVertexState : public BasicVertexState {

public:

  BasicMultiVertexState() : valid(false){}

  BasicMultiVertexState(const std::vector<VertexState>& vsComp);

  BasicMultiVertexState* clone() const override
  {
    return new BasicMultiVertexState(*this);
  }

  GlobalPoint position() const override;

  double time() const override;

  GlobalError error() const override;

  double timeError() const override;

  GlobalError error4D() const override;

  GlobalWeight weight() const override;

  GlobalWeight weight4D() const override;

  AlgebraicVector3 weightTimesPosition() const override;

  AlgebraicVector4 weightTimesPosition4D() const override;

  double weightInMixture() const override;

  std::vector<VertexState> components() const override {
    return theComponents;
  }

  bool isValid() const override {return valid;}

  bool is4D() const override { checkCombinedState(); return theCombinedState.is4D(); }

private:

  void checkCombinedState() const;

  bool valid;
  mutable std::vector<VertexState> theComponents;
  mutable VertexState theCombinedState;
  mutable bool theCombinedStateUp2Date;

  MultiVertexStateCombiner theCombiner;

};

#endif