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// $Id: G4VSamplerConfigurator.hh,v 1.3 2008/04/21 09:10:28 ahoward Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// ----------------------------------------------------------------------
// Class G4VSamplerConfigurator
//
// Class description:
//
// This is an interface for configurators setting up processes
// needed for importance sampling and scoring. 
// The Configurator may be given a pointer to another Configurator.
// If a configurator will be given a pointer to another configurator
// it may obtain a G4VTrackTerminator from the given Configurator.
// This way it is possible to delegate the killing of a track.

// Author: Michael Dressel (Michael.Dressel@cern.ch)
// ----------------------------------------------------------------------
#ifndef G4VSamplerConfigurator_hh
#define G4VSamplerConfigurator_hh G4VSamplerConfigurator_hh

#include "G4Types.hh"
#include <vector>

class G4VTrackTerminator;

class G4VSamplerConfigurator
{

public:  // with description

  G4VSamplerConfigurator();
  virtual ~G4VSamplerConfigurator();

  virtual void Configure(G4VSamplerConfigurator *preConf) = 0;
    // Do the configuration, if preConf is given a
    // G4VTrackTerminator may be obtained from it.

  virtual const G4VTrackTerminator *GetTrackTerminator() const = 0;
    // Return a G4VTrackTerminator or 0.
};

typedef std::vector<G4VSamplerConfigurator *> G4Configurators;

#endif