text: //
  // ********************************************************************
  // * License and Disclaimer                                           *
  // *                                                                  *
  // * The  Geant4 software  is  copyright of the Copyright Holders  of *
  // * the Geant4 Collaboration.  It is provided  under  the terms  and *
  // * conditions of the Geant4 Software License,  included in the file *
  // * LICENSE and available at  http://cern.ch/geant4/license .  These *
  // * include a list of copyright holders.                             *
  // *                                                                  *
  // * 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.  Please see the license in the file  LICENSE  and URL above *
  // * for the full disclaimer and the limitation of liability.         *
  // *                                                                  *
  // * This  code  implementation is the result of  the  scientific and *
  // * technical work of the GEANT4 collaboration.                      *
  // * By using,  copying,  modifying or  distributing the software (or *
  // * any work based  on the software)  you  agree  to acknowledge its *
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  // ********************************************************************
  //
  //  Code developed by: Susanna Guatelli
  //
  // $Id$
  //
  //    **********************************
  //    *                                *
  //    *      BrachyFactory.hh          *
  //    *                                *
  //    **********************************
  //
  // this is the abstract class which manages the sources' realisation
  // in terms of geometry and primary particle generated in the radioactive core
  
  #ifndef BrachyFactory_h
  #define BrachyFactory_h 1
  
  #include "G4VUserPrimaryGeneratorAction.hh"
  
  class G4ParticleGun;
  class G4Run;
  class G4Event;
  class G4VPhysicalVolume;
  class BrachyAnalysisManager;
  
  class BrachyFactory
  {
  public:
  
    BrachyFactory();
    virtual ~BrachyFactory();
  
    //Source primary particles' management ...
    virtual void CreatePrimaryGeneratorAction(G4Event* anEven) = 0;
  
    // ...
    // this function manages the creation of the source in terms of 
    // geometry ...
    virtual void CreateSource(G4VPhysicalVolume*) = 0;
  
    // ...
    // This function deletes the source in the geometry (phantom); to be
    // used when the user needs to substitute one source with another one ...
    virtual void CleanSource() = 0;
  };
  #endif
  