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// $Id: G4ShellEMDataSet.hh,v 1.9 2007/10/15 08:31:49 pia Exp $
// GEANT4 tag $Name: geant4-09-01-patch-02 $
//
// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// 31 Jul 2001   MGP        Created
//
// -------------------------------------------------------------------

// Class description:
// Low Energy Electromagnetic Physics
// Data set for an electromagnetic physics process
// A strategy pattern is used to encapsulate algorithms for data interpolation
// Further documentation available from http://www.ge.infn.it/geant4/lowE

// -------------------------------------------------------------------

#ifndef   G4SHELLEMDATASET_HH
 #define  G4SHELLEMDATASET_HH 1

 #include "globals.hh"
 #include "G4VEMDataSet.hh"
 #include <vector>

 class G4VDataSetAlgorithm;

 class G4ShellEMDataSet : public G4VEMDataSet 
 { 
  public:
   G4ShellEMDataSet(G4int argZ, G4VDataSetAlgorithm* argAlgorithm, G4double argUnitEnergies=MeV, G4double argUnitData=barn);
   virtual ~G4ShellEMDataSet();
 
   virtual G4double FindValue(G4double argEnergy, G4int argComponentId=0) const;
  
   virtual void PrintData(void) const;

   virtual const G4VEMDataSet*  GetComponent(G4int argComponentId) const { return components[argComponentId]; }
   virtual void AddComponent(G4VEMDataSet * argDataSet) { components.push_back(argDataSet); }
   virtual size_t NumberOfComponents(void) const { return components.size(); }

   virtual const G4DataVector& GetEnergies(G4int argComponentId) const { return GetComponent(argComponentId)->GetEnergies(0); }
   virtual const G4DataVector& GetData(G4int argComponentId) const { return GetComponent(argComponentId)->GetData(0); }
   virtual void SetEnergiesData(G4DataVector * argEnergies, G4DataVector * argData, G4int argComponentId);

   virtual G4bool LoadData(const G4String & argFileName);
   virtual G4bool SaveData(const G4String & argFileName) const;
   
 protected:
   G4double GetUnitEnergies() const { return unitEnergies; }
   G4double GetUnitData() const { return unitData; }
   const G4VDataSetAlgorithm* GetAlgorithm() const { return algorithm; }
   
   void CleanUpComponents(void);

 private:
   G4String FullFileName(const G4String & argFileName) const;
  
   // Hide copy constructor and assignment operator 
   G4ShellEMDataSet();
   G4ShellEMDataSet(const G4ShellEMDataSet & copy);
   G4ShellEMDataSet& operator=(const G4ShellEMDataSet & right);

   std::vector<G4VEMDataSet*> components;          // Owned pointers

   G4int z;

   G4VDataSetAlgorithm* algorithm;           // Owned pointer 
  
   G4double unitEnergies;
   G4double unitData;
 };
#endif /* G4SHELLEMDATASET_HH */