CMSSW Reference Manual

GenEventScaleProducer::GenEventScaleProducer ( const edm::ParameterSet & p )

constructor

Definition at line 36 of file GenEventScaleProducer.cc.

00036                                                                      :
00037   src_( p.getParameter<InputTag>( "src" ) ) {
00038   produces<double>();
00039 }

void GenEventScaleProducer::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)			`[private, virtual]`

Implements edm::EDProducer.

Definition at line 42 of file GenEventScaleProducer.cc.

References lat::endl(), TtGenEvtProducer_cfi::genEvt, edm::Event::getByLabel(), edm::errors::InvalidReference, edm::Event::put(), and src_.

00042                                                                       {
00043   Handle<HepMCProduct> mc;
00044   evt.getByLabel( src_, mc );
00045   const GenEvent * genEvt = mc->GetEvent();
00046   if( genEvt == 0 ) 
00047     throw edm::Exception( edm::errors::InvalidReference ) 
00048       << "HepMC has null pointer to GenEvent" << endl;
00049   auto_ptr<double> event_scale( new double(1) );
00050   (*event_scale) = genEvt->event_scale();
00051   evt.put( event_scale );
00052 }

edm::InputTag GenEventScaleProducer::src_ [private]

Definition at line 24 of file GenEventScaleProducer.cc.

Referenced by produce().


Public Member Functions
	GenEventScaleProducer (const edm::ParameterSet &)
	constructor
Private Member Functions
void	produce (edm::Event &evt, const edm::EventSetup &es)
Private Attributes
edm::InputTag	src_

GenEventScaleProducer Class Reference

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation