IJetGrouper.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TRIGHLTJETHYPO_IJETGROUPER_H
#define TRIGHLTJETHYPO_IJETGROUPER_H
 
#include "TrigHLTJetHypo/TrigHLTJetHypoUtils/HypoJetDefs.h"
#include <string>
 
class IJetGrouper{
  public:
  virtual ~IJetGrouper(){}
 
  /* Why such a complex return type?
   * Most groupers take a collection of jets, and divide it up into 
   * the smaller groups to be tested against a Condition.
   * However, it is possible (eg partition grouper) for there
   * to be many ways to breal the orinal jet collection into 
   * a groups of jets that can be matched to conditions. Partition
   * grouper returns all possibilities. Each such diviion is 
   * store in a HypoJetVector. The various HypoJetVectors are
   * collected into a vector of HypoJetGroupVectors.
   */
  virtual HypoJetVector next() = 0;
  virtual std::string toString() const = 0; 
  virtual std::string getName() const = 0; 
};
#endif