EvtModel.hh

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//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 1998      Caltech, UCSB
//
// Module: EvtGen/EvtModel.hh
//
// Description:
//
// Modification history:
//
//    DJL/RYD     August 8, 1998         Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTMODEL_HH
#define EVTMODEL_HH
 
#include "EvtDecayBase.hh"
#include "EvtStringHash.hh"
#include <map>
// #include <fstream.h>
 
// Class to read in and handle the decays available
// to EvtGen for each particle, and the model to be
// used for each one.
 
class EvtModel {
 
public:
  static EvtModel& instance();
 
  void Register( EvtDecayBase* prototype );
 
  int isModel( std::string name );
 
  EvtDecayBase* getFcn( std::string model_name );
 
  int  isCommand( std::string cmd );
  void storeCommand( std::string cmd, std::string cnfgstr );
 
private:
  EvtModel();
 
  static EvtModel* _instance;
 
  std::map<std::string, EvtDecayBase*> _modelNameHash;
  std::map<std::string, EvtDecayBase*> _commandNameHash;
};
 
inline EvtModel& EvtModel::instance() {
  if ( _instance == 0 ) _instance = new EvtModel;
  return *_instance;
}
 
#endif