//
// ********************************************************************
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//
//
// $Id$
//
// class G4VNotifier
//
// Class description:
//
// Simple abstract class allowing for implementation of user notifiers
// to be activated for example at registration/deregistration of objects
// in stores.

// Author:
// 01.09.04 G.Cosmo Initial version
// --------------------------------------------------------------------
#ifndef G4VNOTIFIER_HH
#define G4VNOTIFIER_HH

class G4VNotifier
{
  public:  // with description

    G4VNotifier();
    virtual ~G4VNotifier();
      // Constructor and destructor.

    virtual void NotifyRegistration() = 0;
      // Notification of object registration.
    virtual void NotifyDeRegistration() = 0;
      // Notification of object deregistration.
};

#endif
