CompositeRefBaseCandidate.h

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#ifndef Candidate_CompositeRefBaseCandidate_h
#define Candidate_CompositeRefBaseCandidate_h
#include "DataFormats/Candidate/interface/LeafCandidate.h"
namespace reco {

  class CompositeRefBaseCandidate : public LeafCandidate {
  public:
    typedef std::vector<CandidateBaseRef> daughters;
    CompositeRefBaseCandidate() : LeafCandidate() { }
    CompositeRefBaseCandidate( Charge q, const LorentzVector & p4, const Point & vtx = Point( 0, 0, 0 ),
                   int pdgId = 0, int status = 0, bool integerCharge = true ) :
      LeafCandidate( q, p4, vtx, pdgId, status, integerCharge ) { }
    CompositeRefBaseCandidate( Charge q, const PolarLorentzVector & p4, const Point & vtx = Point( 0, 0, 0 ),
                   int pdgId = 0, int status = 0, bool integerCharge = true ) :
      LeafCandidate( q, p4, vtx, pdgId, status, integerCharge ) { }
    explicit CompositeRefBaseCandidate( const Candidate & c ) : LeafCandidate( c ) { }
    ~CompositeRefBaseCandidate() override;
    CompositeRefBaseCandidate * clone() const override;
    size_t numberOfDaughters() const override;
    size_t numberOfMothers() const override;
    const Candidate * daughter( size_type ) const override;
    const Candidate * mother( size_type ) const override;
    Candidate * daughter( size_type ) override;
    using reco::LeafCandidate::daughter; // avoid hiding the base
    void addDaughter( const CandidateBaseRef & );    
    void clearDaughters() { dau.clear(); }
    CandidateBaseRef daughterRef( size_type i ) const { return dau[ i ]; }

  private:
    daughters dau;
    bool overlap( const Candidate & ) const override;
  };

  inline void CompositeRefBaseCandidate::addDaughter( const CandidateBaseRef & cand ) { 
    dau.push_back( cand ); 
  }
}

#endif