CaloConstitHelpers Namespace Reference

Classes
struct	CaloClusterExtractor
class	CaloConstitExtractor
	Interface to retrieve calo informations from a jet constituent. More...
struct	FlowElementExtractor
struct	PFOExtractor

Typedefs
using	JetConstitIterator = xAOD::JetConstituentVector::iterator

Functions
const CaloConstitExtractor *	extractorForJet (const xAOD::Jet *jet)
	returns a pointer to a CaloConstitExtractor for a given jet.

Typedef Documentation

JetConstitIterator

using CaloConstitHelpers::JetConstitIterator = xAOD::JetConstituentVector::iterator

Definition at line 21 of file JetCaloCalculations.cxx.

Function Documentation

extractorForJet()

const CaloConstitExtractor * CaloConstitHelpers::extractorForJet

(

const xAOD::Jet *

jet

)

returns a pointer to a CaloConstitExtractor for a given jet.

Do not delete the pointer ! WARNING : not entirely safe. Assumes that all jet constituents have the same type as 1st constit.

Definition at line 185 of file JetCaloCalculations.cxx.

                                                                 {
    static const CaloConstitExtractor nullEx;
    static const CaloClusterExtractor clusteEx;
    static const PFOExtractor pfoEx;
    static const FlowElementExtractor feEx;
 
    if(jet->numConstituents() == 0 ) return &nullEx;    
 
    // WARNING not entirely safe : assume all constits are of same type
 
    switch(jet->rawConstituent(0)->type() ) {
    case xAOD::Type::CaloCluster: 
      return &clusteEx;
    case xAOD::Type::ParticleFlow:
      return &pfoEx;
    case xAOD::Type::FlowElement:
      return &feEx;
    default:
      break;
    }
    return &nullEx;
  }