BlockElementLinkerBase.h

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#ifndef __BlockElementLinkerBase_H__
#define __BlockElementLinkerBase_H__

#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/ParticleFlowReco/interface/PFBlockElement.h"

#include <string>

class BlockElementLinkerBase {
 public:
 BlockElementLinkerBase(const edm::ParameterSet& conf):
  _linkerName( conf.getParameter<std::string>("linkerName") ) { }
  BlockElementLinkerBase(const BlockElementLinkerBase& ) = delete;
  virtual ~BlockElementLinkerBase() = default;
  BlockElementLinkerBase& operator=(const BlockElementLinkerBase&) = delete;

  virtual bool linkPrefilter( const reco::PFBlockElement*,
                  const reco::PFBlockElement* ) const 
  { return true; }

  virtual double testLink( const reco::PFBlockElement*,
               const reco::PFBlockElement* ) const = 0;

  const std::string& name() const { return _linkerName; }
  
 private:
  const std::string _linkerName;
};

#include "FWCore/PluginManager/interface/PluginFactory.h"
typedef edmplugin::PluginFactory< BlockElementLinkerBase* (const edm::ParameterSet&) > BlockElementLinkerFactory;

#endif