ElectronConstituent.cxx

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
/***************************************************************************
                           ElectronConstituents.h  -  Description
                             -------------------
    begin   : January, 2005
    authors : Kyle Cranmer, Andreas Wildauer
    email   : cranmer@cern.ch, andreas.wildauer@cern.ch
 
    changes : 
 
***************************************************************************/
              
#include "egammaEvent/ElectronConstituent.h"
 
namespace Analysis
{
 
ElectronConstituent::ElectronConstituent(NameType& name)
  : m_name (name)
{
}
  
  
  void ElectronConstituent::setName(NameType& name) {m_name = name;}      
  
  NameType ElectronConstituent::name() const { return m_name;}      
 
  IConstituent* ElectronConstituent::clone() const
  { return new ElectronConstituent( *this );}   
 
  const Electron* ElectronConstituent::electron() const
  {
    //get electron from Navigable
    if (this->size() ==0) 
      return nullptr;
    if (this->size() > 1)
      return nullptr;
    // this shouldn't happen
    else 
      return getConstituentPtr((this->getConstituents()).begin());
  }
  
  void  ElectronConstituent::set_electron(const ElectronContainer* theContainer,
               const Electron* the_electron,
               double weight)
  {
    double newWeight = weight;
    // electron already in collection
    if ( this->contains(the_electron) )
      {
    // update weight
    newWeight *= this->getElectronWeight(the_electron);
    // remove the previous electron 
    this->remove(the_electron);
      }
    
    // from Navigable base
    this->putElement(theContainer,the_electron,newWeight);
    
  }
  
  void  ElectronConstituent::set_electron(const ElectronContainer* theContainer,
               index_type& theIndex,
               double weight)
  {
    double newWeight = weight;
    // electron already in collection
    if ( this->contains(theContainer,theIndex) )
      {
    // update weight
    newWeight *= this->getElectronWeight(theContainer,theIndex);
    // remove the previous electron
    this->remove(theContainer,theIndex);
      }
    
    // from Navigable base
    this->putElement(theContainer,theIndex,newWeight);
    
  }
  
  double ElectronConstituent::getElectronWeight(const Electron* the_electron) const
  {
    // from Navigable
    return (this->contains(the_electron) )
      ? this->getParameter(the_electron)
      : 0.;
  }
  
  double ElectronConstituent::getElectronWeight(const ElectronContainer* theContainer,
                      index_type& theIndex) const
  {
    // from Navigable
    return (this->contains(theContainer,theIndex))
      ? this->getParameter(theContainer,theIndex)
      : 0.;
  }
  
  
}