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// $Id: G4VDNAProcessInWater.hh,v 1.6 2006/06/29 19:37:03 gunter Exp $
// GEANT4 tag $Name: geant4-08-02 $
//

#ifndef   G4VDNAPROCESSINWATER_HH
#define  G4VDNAPROCESSINWATER_HH 1
 
#include "G4VLowEnergyTestableDiscreteProcess.hh"

// TotalCrossSectionPolicy must provide:
//  - [protected] const G4ParticleDefinition * IncomingParticleDefinition(void)
//  - [protected] G4double TotalCrossSection(G4double k, G4int z)
//  - [protected] void BuildTotalCrossSection(void)
 
// FinalStatesPolicy must provide:
//  - [protected] G4bool KillIncomingParticle(G4double k)
//  - [protected] void BuildFinalStatesData(void)
 
template<typename TotalCrossSectionPolicy, typename FinalStatesPolicy> 
class G4VDNAProcessInWater : public G4VLowEnergyTestableDiscreteProcess, public TotalCrossSectionPolicy, public FinalStatesPolicy
{
public:

  G4VDNAProcessInWater(const G4String& name) : G4VLowEnergyTestableDiscreteProcess(name) {}

  virtual ~G4VDNAProcessInWater() {}
 
  virtual G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep);

  virtual void BuildPhysicsTable(const G4ParticleDefinition& aParticleDefinition);

  virtual G4bool IsApplicable(const G4ParticleDefinition& aParticleDefinition);

protected:

  void ValidateInWater(const G4Track& aTrack) const;

  virtual G4double GetMeanFreePath(const G4Track& aTrack, G4double previousStepSize, G4ForceCondition* condition);

private:

  // Hides default constructor and assignment operator as private 
  G4VDNAProcessInWater();
  G4VDNAProcessInWater& operator=(const G4VDNAProcessInWater & right);
};

#include "G4VDNAProcessInWater.icc"
#endif /* G4VDNAPROCESSINWATER_HH */