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#ifndef Candidate_CompositeRefBaseCandidate_h
#define Candidate_CompositeRefBaseCandidate_h
#include "DataFormats/Candidate/interface/LeafCandidate.h"
/** \class reco::CompositeRefBaseCandidate
*
* a reco::Candidate composed of daughters.
* The daughters has persistent references (edm::RefToBase<...>)
* to reco::Candidate stored in a separate collection.
*
* \author Luca Lista, INFN
*
*
*/
namespace reco {
class CompositeRefBaseCandidate : public LeafCandidate {
public:
/// collection of references to daughters
typedef std::vector<CandidateBaseRef> daughters;
/// default constructor
CompositeRefBaseCandidate() : LeafCandidate() {}
/// constructor from values
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) {}
/// constructor from values
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) {}
/// constructor from a particle
explicit CompositeRefBaseCandidate(const Candidate& c) : LeafCandidate(c) {}
/// destructor
~CompositeRefBaseCandidate() override;
/// returns a clone of the candidate
CompositeRefBaseCandidate* clone() const override;
/// number of daughters
size_t numberOfDaughters() const override;
/// number of mothers
size_t numberOfMothers() const override;
/// return daughter at a given position, i = 0, ... numberOfDaughters() - 1 (read only mode)
const Candidate* daughter(size_type) const override;
/// return mother at a given position, i = 0, ... numberOfMothers() - 1 (read only mode)
const Candidate* mother(size_type) const override;
/// return daughter at a given position, i = 0, ... numberOfDaughters() - 1
Candidate* daughter(size_type) override;
using reco::LeafCandidate::daughter; // avoid hiding the base
/// add a daughter via a reference
void addDaughter(const CandidateBaseRef&);
/// clear daughter references
void clearDaughters() { dau.clear(); }
/// reference to daughter at given position
CandidateBaseRef daughterRef(size_type i) const { return dau[i]; }
private:
/// collection of references to daughters
daughters dau;
/// check overlap with another candidate
bool overlap(const Candidate&) const override;
};
inline void CompositeRefBaseCandidate::addDaughter(const CandidateBaseRef& cand) { dau.push_back(cand); }
} // namespace reco
#endif
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