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Merger< InputCollection, OutputCollection, P > Class Template Reference

Merges an arbitrary number of collections into a single collection. More...

#include <PhysicsTools/UtilAlgos/interface/Merger.h>

Inheritance diagram for Merger< InputCollection, OutputCollection, P >:

List of all members.

Public Member Functions
	Merger (const edm::ParameterSet &)
	constructor from parameter set
	~Merger ()
	destructor
Private Types
typedef std::vector < edm::InputTag >	vtag
	vector of strings
Private Member Functions
virtual void	produce (edm::Event &, const edm::EventSetup &)
	process an event
Private Attributes
vtag	src_
	labels of the collections to be merged

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Detailed Description

template<typename InputCollection, typename OutputCollection = InputCollection, typename P = typename edm::clonehelper::CloneTrait<InputCollection>::type>
class Merger< InputCollection, OutputCollection, P >

Merges an arbitrary number of collections into a single collection.

Template parameters:

• C : collection type
• P : policy class that specifies how objects in the collection are are cloned

Author:

Luca Lista, INFN

Version:

Revision

1.6

Id

Merger.h,v 1.6 2007/11/12 11:44:52 llista Exp

Definition at line 30 of file Merger.h.

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Member Typedef Documentation

template<typename InputCollection, typename OutputCollection = InputCollection, typename P = typename edm::clonehelper::CloneTrait<InputCollection>::type>

typedef std::vector<edm::InputTag> Merger< InputCollection, OutputCollection, P >::vtag [private]

vector of strings

Definition at line 41 of file Merger.h.

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Constructor & Destructor Documentation

template<typename InputCollection, typename OutputCollection, typename P>

Merger< InputCollection, OutputCollection, P >::Merger

(

const edm::ParameterSet &

par

)

[inline, explicit]

constructor from parameter set

Definition at line 47 of file Merger.h.

                                                                                 : 
  src_( par.template getParameter<vtag>( "src" ) ) {
  produces<OutputCollection>();
}

template<typename InputCollection, typename OutputCollection, typename P>

Merger< InputCollection, OutputCollection, P >::~Merger

(

)

[inline]

destructor

Definition at line 53 of file Merger.h.

                                                      {
}

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Member Function Documentation

template<typename InputCollection, typename OutputCollection, typename P>

void Merger< InputCollection, OutputCollection, P >::produce	(	edm::Event &	evt,
		const edm::EventSetup &
	)			[inline, private, virtual]

process an event

Implements edm::EDProducer.

Definition at line 57 of file Merger.h.

References c, clone(), coll, edm::Event::getByLabel(), h, edm::Event::put(), s, and Merger< InputCollection, OutputCollection, P >::src_.

                                                                                                {
  std::auto_ptr<OutputCollection> coll( new OutputCollection );
  for( vtag::const_iterator s = src_.begin(); s != src_.end(); ++ s ) {
    edm::Handle<InputCollection> h;
    evt.getByLabel( * s, h );
    for( typename InputCollection::const_iterator c = h->begin(); c != h->end(); ++c ) {
      coll->push_back( P::clone( * c ) );
    }
  }
  evt.put( coll );
}

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Member Data Documentation

template<typename InputCollection, typename OutputCollection = InputCollection, typename P = typename edm::clonehelper::CloneTrait<InputCollection>::type>

vtag Merger< InputCollection, OutputCollection, P >::src_ [private]

labels of the collections to be merged

Definition at line 43 of file Merger.h.

Referenced by Merger< InputCollection, OutputCollection, P >::produce().

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

• PhysicsTools/UtilAlgos/interface/Merger.h

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