cvisitor.h

//==========================================================================
//  CVISITOR.H - part of
//                     OMNeT++/OMNEST
//            Discrete System Simulation in C++
//
//  Declaration of the following classes:
//    cVisitor:  enables traversing the object tree
//
//==========================================================================

/*--------------------------------------------------------------*
  Copyright (C) 1992-2008 Andras Varga
  Copyright (C) 2006-2008 OpenSim Ltd.

  This file is distributed WITHOUT ANY WARRANTY. See the file
  `license' for details on this and other legal matters.
*--------------------------------------------------------------*/

#ifndef __CVISITOR_H
#define __CVISITOR_H

#include "simkerneldefs.h"

NAMESPACE_BEGIN

class cObject;


class SIM_API cVisitor
{
  protected:
     class EndTraversalException { public: EndTraversalException() {} };

  public:
    virtual ~cVisitor() {}

    virtual bool process(cObject *obj);

    virtual bool processChildrenOf(cObject *obj);

    virtual void visit(cObject *obj) = 0;
};

NAMESPACE_END


#endif