/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2006

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_CLEARABLE_GRAPH_EXTENDER_H

 #define LEMON_CLEARABLE_GRAPH_EXTENDER_H

 #include <lemon/invalid.h>

 namespace lemon {

   template <typename _Base> 

   class ClearableGraphExtender : public _Base {

   public:

     typedef ClearableGraphExtender Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::Edge Edge;

     void clear() {

       Parent::getNotifier(Node()).clear();

       Parent::getNotifier(Edge()).clear();

       Parent::clear();

     }

   };

   template <typename _Base> 

   class ClearableEdgeSetExtender : public _Base {

   public:

     typedef ClearableEdgeSetExtender Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::Edge Edge;

     void clear() {

       Parent::getNotifier(Edge()).clear();

       Parent::clear();

     }

   };

   template <typename _Base> 

   class ClearableUGraphExtender : public _Base {

   public:

     typedef ClearableUGraphExtender Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::UEdge UEdge;

     typedef typename Parent::Edge Edge;

     void clear() {

       Parent::getNotifier(Node()).clear();

       Parent::getNotifier(UEdge()).clear();

       Parent::getNotifier(Edge()).clear();

       Parent::clear();

     }

   };

   template <typename _Base> 

   class ClearableUEdgeSetExtender : public _Base {

   public:

     typedef ClearableUEdgeSetExtender Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::UEdge UEdge;

     typedef typename Parent::Edge Edge;

     void clear() {

       Parent::getNotifier(UEdge()).clear();

       Parent::getNotifier(Edge()).clear();

       Parent::clear();

     }

   };

   template <typename _Base>

   class ClearableBpUGraphExtender : public _Base {

   public:

     typedef _Base Parent;

     typedef ClearableBpUGraphExtender Graph;

     typedef typename Parent::Node Node;

     typedef typename Parent::BNode BNode;

     typedef typename Parent::ANode ANode;

     typedef typename Parent::Edge Edge;

     typedef typename Parent::UEdge UEdge;

     void clear() {

       Parent::getNotifier(Edge()).clear();

       Parent::getNotifier(UEdge()).clear();

       Parent::getNotifier(Node()).clear();

       Parent::getNotifier(BNode()).clear();

       Parent::getNotifier(ANode()).clear();

       Parent::clear();

     }

   };

 }

 #endif