HadronTensorModelI.h

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//____________________________________________________________________________
/*!
 
\class    genie::HadronTensorModelI
 
\brief    Creates hadron tensor objects for use in cross section calculations
 
\author   Steven Gardiner <gardiner \at fnal.gov>
          Fermi National Accelerator Laboratory
 
\created  April 26, 2019
 
\cpright  Copyright (c) 2003-2025, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org
          or see $GENIE/LICENSE
*/
//____________________________________________________________________________
 
#ifndef _HADRON_TENSOR_MODEL_H_
#define _HADRON_TENSOR_MODEL_H_
 
// standard library includes
#include <map>
#include <string>
#include <vector>
 
// GENIE includes
#include "Framework/Algorithm/Algorithm.h"
#include "Physics/HadronTensors/HadronTensorI.h"
 
namespace genie {
 
class HadronTensorModelI : public Algorithm {
 
public:
  virtual ~HadronTensorModelI();
 
  /// Retrieves a pointer to a hadron tensor object appropriate for this model
  /// \param[in] tensor_pdg The PDG code for the nuclide described by the tensor
  /// \param[in] type The desired kind of hadron tensor
  /// \returns A pointer to the requested hadron tensor, or NULL if a match
  /// could not be found/created
  virtual const HadronTensorI* GetTensor(int tensor_pdg, HadronTensorType_t type) const = 0;
 
protected:
  HadronTensorModelI();
  HadronTensorModelI(std::string name);
  HadronTensorModelI(std::string name, std::string config);
};
 
} // namespace genie
 
#endif // _HADRON_TENSOR_MODEL_H_