//
// ********************************************************************
// * DISCLAIMER                                                       *
// *                                                                  *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in:                      *
// *   http://cern.ch/geant4/license                                  *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.                                                             *
// *                                                                  *
// * This  code  implementation is the  intellectual property  of the *
// * GEANT4 collaboration.                                            *
// * By copying,  distributing  or modifying the Program (or any work *
// * based  on  the Program)  you indicate  your  acceptance of  this *
// * statement, and all its terms.                                    *
// ********************************************************************
//
//
// $Id: G4NullModel.hh,v 1.6 2001/08/24 20:36:15 johna Exp $
// GEANT4 tag $Name: geant4-07-00-cand-01 $
//
// 
// John Allison  4th April 1998.
// Null model - simply a holder for modeling parameter.
// DO NOT INVOKE DescribeYourself.

#ifndef G4NULLMODEL_HH
#define G4NULLMODEL_HH

#include "G4VModel.hh"

class G4NullModel: public G4VModel {

public:

  G4NullModel (const G4ModelingParameters* = 0);

  virtual ~G4NullModel ();

  void DescribeYourselfTo (G4VGraphicsScene&);
  // An exception is thrown if this is called!!!!!!!!!!!!!!!!!!!!

  /////////////////////////////////////////////////
  // Access to other information: use GetModelingParameters()
  // (inherited from G4VModel) and the access functions of
  // G4ModelingParameters.

};

#endif