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// G4VVolumeMaterialScanner
//
// Class description:
//
// Interface for repeated volumes or parameterisations that are able to 
// tabulate their materials.

// Author: John Apostolakis (CERN), 18.11.2005
// --------------------------------------------------------------------
#ifndef G4VVOLUMEMATERIALSCANNER_HH
#define G4VVOLUMEMATERIALSCANNER_HH

#include "G4Types.hh"

class G4Material;

/**
 * @brief G4VVolumeMaterialScanner is an interface class for repeated volumes
 * or parameterisations that are able to tabulate their materials.
 */

class G4VVolumeMaterialScanner
{
  public:

    /**
     * Default Constructor and Destructor.
     */
    G4VVolumeMaterialScanner() = default;
    virtual ~G4VVolumeMaterialScanner() = default;

    /**
     * Method to return the total number of materials.
     */
    virtual G4int GetNumberOfMaterials() const = 0;

    /**
     * Method to return a pointer to the material, given an index.
     */
    virtual G4Material* GetMaterial(G4int idx) const = 0;
};
   
#endif