HepMcParticleLink Class Reference

a link optimized in size for a GenParticle in a McEventCollection More...

#include <HepMcParticleLink.h>

List of all members.

Public Types

typedef unsigned int index_type

Public Member Functions

bool isValid () const

const HepMC::GenParticle * cptr () const

structors

HepMcParticleLink ()

HepMcParticleLink (index_type barCode, index_type eventIndex=0)

HepMcParticleLink (const HepMC::GenParticle *p, index_type eventIndex=0)

HepMcParticleLink (const HepMcParticleLink &rhs)

HepMcParticleLink (const HepMC::GenParticle *part, const HepMC::GenEvent *pevt)

pointer interface

const HepMC::GenParticle & operator * () const

Exceptions:

std::runtime_error when the element is not found

const HepMC::GenParticle * operator-> () const

operator const HepMC::GenParticle * () const

bool operator! () const

indexing accessors (e.g. for writing)

int barcode () const

index_type eventIndex () const

Private Attributes

HepMC::GenParticle * m_particle

ExtendedBarCode m_extBarcode

Classes

class ExtendedBarCode

Detailed Description

a link optimized in size for a GenParticle in a McEventCollection

See also:: McEventCollection, GenEvent, ElementLink

Author:

Paolo Calafiura

Id: HepMcParticleLink.h,v 1.1.1.1 2004/09/28 06:40:36 liwd Exp

Definition at line 17 of file HepMcParticleLink.h.

Member Typedef Documentation

typedef unsigned int HepMcParticleLink::index_type

Definition at line 19 of file HepMcParticleLink.h.

Constructor & Destructor Documentation

HepMcParticleLink::HepMcParticleLink ( ) [inline]

Definition at line 23 of file HepMcParticleLink.h.

00023 : m_particle(0), m_extBarcode() {}

HepMcParticleLink::HepMcParticleLink	(	index_type	barCode,
		index_type	eventIndex = `0`
	)			`[inline]`

Definition at line 24 of file HepMcParticleLink.h.

00024                                                                    :
00025     m_particle(0), m_extBarcode(barCode, eventIndex) {}
  HepMcParticleLink(const HepMC::GenParticle* p, index_type eventIndex = 0);

HepMcParticleLink::HepMcParticleLink	(	const HepMC::GenParticle *	p,
		index_type	eventIndex = `0`
	)

Definition at line 8 of file HepMcParticleLink.cxx.

00009                                                             :
00010     m_particle(const_cast<HepMC::GenParticle*>(part)), 
00011     m_extBarcode((0 != part) ? part->barcode() : 0, eventIndex) {
00012   assert(part);
00013 }

HepMcParticleLink::HepMcParticleLink ( const HepMcParticleLink & rhs ) [inline]

Definition at line 27 of file HepMcParticleLink.h.

00027                                                   : 
00028     m_particle(rhs.m_particle),
00029     m_extBarcode(rhs.m_extBarcode) {}

HepMcParticleLink::HepMcParticleLink	(	const HepMC::GenParticle *	part,
		const HepMC::GenEvent *	pevt
	)

Member Function Documentation

int HepMcParticleLink::barcode ( ) const [inline]

Definition at line 45 of file HepMcParticleLink.h.

Referenced by cptr().

00045 { return m_extBarcode.barcode(); }

const HepMC::GenParticle * HepMcParticleLink::cptr ( ) const

Definition at line 15 of file HepMcParticleLink.cxx.

References barcode(), eventIndex(), and m_particle.

Referenced by operator *(), operator const HepMC::GenParticle *(), and operator->().

00015                                                       {
00016   if (!m_particle) {
00017     const McEventCollection* pEvtColl;
00018     if ((StoreGate::instance().retrieve(pEvtColl)).isSuccess()) { //FIXME SLOW
00019       m_particle = pEvtColl->at(eventIndex())->barcode_to_particle(barcode());
00020     }
00021   }
00022   return m_particle;
00023 }

index_type HepMcParticleLink::eventIndex ( ) const [inline]

Definition at line 46 of file HepMcParticleLink.h.

Referenced by cptr().

00046 { return m_extBarcode.eventIndex(); }

bool HepMcParticleLink::isValid ( ) const [inline]

Definition at line 49 of file HepMcParticleLink.h.

00049 { return (0 != cptr()); }

const HepMC::GenParticle& HepMcParticleLink::operator * ( void ) const [inline]

Exceptions:

std::runtime_error

when the element is not found

Definition at line 37 of file HepMcParticleLink.h.

References cptr().

00037 { return *cptr(); }//FIXME

HepMcParticleLink::operator const HepMC::GenParticle * ( ) const [inline]

Definition at line 39 of file HepMcParticleLink.h.

References cptr().

00039 { return cptr(); }

bool HepMcParticleLink::operator! ( ) const [inline]

Definition at line 40 of file HepMcParticleLink.h.

00040 {return !isValid();}

const HepMC::GenParticle* HepMcParticleLink::operator-> ( ) const [inline]

Definition at line 38 of file HepMcParticleLink.h.

References cptr().

00038 { return cptr(); }

Member Data Documentation

ExtendedBarCode HepMcParticleLink::m_extBarcode [private]

Definition at line 72 of file HepMcParticleLink.h.

HepMC::GenParticle* HepMcParticleLink::m_particle [mutable, private]

Definition at line 71 of file HepMcParticleLink.h.

Referenced by cptr().

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