RecoCandidate.h

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#ifndef RecoCandidate_RecoCandidate_h
#define RecoCandidate_RecoCandidate_h

#include "DataFormats/Candidate/interface/LeafCandidate.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/GsfTrackReco/interface/GsfTrackFwd.h"
#include "DataFormats/EgammaReco/interface/SuperClusterFwd.h"
#include "DataFormats/CaloTowers/interface/CaloTowerCollection.h"
#include "DataFormats/CaloTowers/interface/CaloTowerDefs.h"

namespace reco {

  class RecoCandidate : public LeafCandidate {
  public:
    RecoCandidate() : LeafCandidate() {}
    template <typename P4>
    RecoCandidate(Charge q, const P4 &p4, const Point &vtx = Point(0, 0, 0), int pdgId = 0, int status = 0)
        : LeafCandidate(q, p4, vtx, pdgId, status) {}
    ~RecoCandidate() override;
    bool overlap(const Candidate &) const override = 0;
    RecoCandidate *clone() const override;

    virtual reco::TrackRef track() const;
    virtual reco::TrackRef track(size_t) const;
    virtual size_t numberOfTracks() const;
    virtual reco::GsfTrackRef gsfTrack() const;
    virtual reco::TrackRef standAloneMuon() const;
    virtual reco::TrackRef combinedMuon() const;
    virtual reco::SuperClusterRef superCluster() const;
    virtual CaloTowerRef caloTower() const;
    const Track *bestTrack() const override;
    virtual TrackBaseRef bestTrackRef() const;
    enum TrackType { noTrackType, recoTrackType, gsfTrackType };
    virtual TrackType bestTrackType() const;
    float dzError() const override;
    float dxyError() const override;

  protected:
    template <typename R>
    bool checkOverlap(const R &r1, const R &r2) const {
      return (!r1.isNull() && !r2.isNull() && r1 == r2);
    }

  private:
    template <typename, typename, typename>
    friend struct component;
  };

  struct StandAloneMuonTag {};
  struct CombinedMuonTag {};

  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, TrackRef, track);
  GET_DEFAULT_CANDIDATE_MULTIPLECOMPONENTS(RecoCandidate, TrackRef, track, numberOfTracks);
  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, GsfTrackRef, gsfTrack);
  GET_CANDIDATE_COMPONENT(RecoCandidate, TrackRef, standAloneMuon, StandAloneMuonTag);
  GET_CANDIDATE_COMPONENT(RecoCandidate, TrackRef, combinedMuon, CombinedMuonTag);
  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, SuperClusterRef, superCluster);
  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, CaloTowerRef, caloTower);
  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, const Track *, bestTrack);
  GET_DEFAULT_CANDIDATE_COMPONENT(RecoCandidate, RecoCandidate::TrackType, bestTrackType);

}  // namespace reco

#endif