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#ifndef JetReco_JetTracksAssociation_h
#define JetReco_JetTracksAssociation_h
/** \class JetTracksAssociation
*
* \short Association between jets and float value
*
* \author Fedor Ratnikov, July 27, 2007
*
************************************************************/
#include "DataFormats/Common/interface/AssociationVector.h"
#include "DataFormats/JetReco/interface/JetCollection.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/Common/interface/Ref.h"
#include "DataFormats/Common/interface/RefVector.h"
#include "DataFormats/Math/interface/LorentzVector.h"
namespace fwlite {
class Event;
}
namespace reco {
namespace JetTracksAssociation {
typedef math::PtEtaPhiELorentzVectorF LorentzVector;
typedef reco::TrackRefVector Value;
typedef std::vector<Value> Values;
typedef edm::AssociationVector<reco::JetRefBaseProd, Values> Container;
typedef Container::value_type value_type;
typedef Container::transient_vector_type transient_vector_type;
typedef edm::Ref<Container> Ref;
typedef edm::RefProd<Container> RefProd;
typedef edm::RefVector<Container> RefVector;
/// Get number of tracks associated with jet
int tracksNumber(const Container&, const reco::JetBaseRef);
/// Get number of tracks associated with jet
int tracksNumber(const Container&, const reco::Jet&);
/// Get LorentzVector as sum of all tracks associated with jet.
LorentzVector tracksP4(const Container&, const reco::JetBaseRef);
/// Get LorentzVector as sum of all tracks associated with jet.
LorentzVector tracksP4(const Container&, const reco::Jet&);
/// associate jet with value. Returns false and associate nothing if jet is already associated
bool setValue(Container&, const reco::JetBaseRef&, reco::TrackRefVector);
/// associate jet with value. Returns false and associate nothing if jet is already associated
bool setValue(Container*, const reco::JetBaseRef&, reco::TrackRefVector);
/// get value for the association. Throw exception if no association found
const reco::TrackRefVector& getValue(const Container&, const reco::JetBaseRef&);
/// get value for the association. Throw exception if no association found
const reco::TrackRefVector& getValue(const Container&, const reco::Jet&);
/// fill list of all jets associated with values. Return # of jets in the list
std::vector<reco::JetBaseRef> allJets(const Container&);
/// check if jet is associated
bool hasJet(const Container&, const reco::JetBaseRef&);
/// check if jet is associated
bool hasJet(const Container&, const reco::Jet&);
} // namespace JetTracksAssociation
/// typedefs for backward compatibility
typedef JetTracksAssociation::Container JetTracksAssociationCollection;
typedef JetTracksAssociation::Ref JetTracksAssociationRef;
typedef JetTracksAssociation::RefProd JetTracksAssociationRefProd;
typedef JetTracksAssociation::RefVector JetTracksAssociationRefVector;
} // namespace reco
#endif
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