/*
 * ActionState.hpp
 *
 *  Created on: Aug 19, 2013
 *      Author: heber
 */

#ifndef ACTIONSTATE_HPP_
#define ACTIONSTATE_HPP_

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <boost/shared_ptr.hpp>

namespace MoleCuilder {

/**
 * This class can be used by actions to save the state.
 *
 * It is implementing a memento pattern. The base class is completely empty,
 * since no general state internals can be given. The Action performing
 * the Undo should downcast to the appropriate type.
 */
class ActionState{
public:
  /**
   * This type is used to store pointers to ActionStates while allowing multiple ownership
   */
  typedef boost::shared_ptr<ActionState> ptr;

  ActionState(){}
  virtual ~ActionState(){}
};

}

#endif /* ACTIONSTATE_HPP_ */