FindByMassRange Class Reference

The function object must be derived from std::unary_function< IParticlePropertySvc::value_type ,bool > IParticlePropertySvc::value_type is a typedef that defines the internal service storage type that is returned when an iterator is dereferenced. More...

#include <GaudiKernel/FindByMassRange.h>

Inheritance diagram for FindByMassRange:

Collaboration diagram for FindByMassRange:

List of all members.

Public Member Functions
	FindByMassRange (double low, double high)
	Constructor - sets the mass range in Gev.
bool	operator() (const ParticleProperty *pp) const
	This routine check to see if the mass of a particle lies within the given mass range and returns true if it does.
Private Attributes
double	m_low
	Low and high mass range (GeV)
double	m_high

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Detailed Description

The function object must be derived from std::unary_function< IParticlePropertySvc::value_type ,bool > IParticlePropertySvc::value_type is a typedef that defines the internal service storage type that is returned when an iterator is dereferenced.

In this case it corresponds to pair< std::string, ParticleProperty* > as the ParticlePropertySvc stores all its data in a map. The string will be the map's key (usually the particle name) and the pointer is a pointer to the ParticleProperty object. The bool template argument states that operator() returns true or false.

The data is accessed in the following manner: const IParticlePropertySvc::value_type& pp_ref; std::string key = pp_ref.first; ParticleProperty* pp = pp_ref.second;

Author:

Ian Last

Definition at line 31 of file FindByMassRange.h.

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Constructor & Destructor Documentation

FindByMassRange::FindByMassRange	(	double	low,
		double	high
	)		[inline]

Constructor - sets the mass range in Gev.

Definition at line 36 of file FindByMassRange.h.

: m_low( low ), m_high( high ) { }

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Member Function Documentation

bool FindByMassRange::operator()

(

const ParticleProperty *

pp )

const [inline]

This routine check to see if the mass of a particle lies within the given mass range and returns true if it does.

Definition at line 41 of file FindByMassRange.h.

                                                                              {
    bool in_range = false;
    if ( pp ) {
      if ( pp->mass() >= m_low && pp->mass() <= m_high ) {
              in_range = true;
      }
    }
    return in_range;
  }

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Member Data Documentation

double FindByMassRange::m_high [private]

Definition at line 55 of file FindByMassRange.h.

double FindByMassRange::m_low [private]

Low and high mass range (GeV)

Definition at line 54 of file FindByMassRange.h.

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The documentation for this class was generated from the following file:

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r2/GaudiKernel/GaudiKernel/FindByMassRange.h