// -*-C++-*- 

/*  inc/containers/MutablePositionEnumeration.hpp  */


/*
 * Author: Philogelos A. <Philogelos@yahoo.com>
 * Maintainer: Philogelos A.
 * Keywords: C++, library, containers
 *
 * Copyright (C) 1998 Philogelos A.
 *
 * This file is part of Quercus Robusta.
 *
 * Quercus Robusta is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this software; see the file COPYING.LIB.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */


#ifndef __MUTABLEPOSITIONENUMERATION_HPP__
#define __MUTABLEPOSITIONENUMERATION_HPP__

/* $Id: MutablePositionEnumeration.hpp,v 1.2 1999/03/03 19:09:11 philogelos Exp $ */

#include "PositionEnumeration.hpp"
#include "iter/enumerations/TypedEnumeration.hpp"
#include "iter/enumerations/Enumeration.hpp"
#include "containers/Position.hpp"
#include "defines.h"

interface MutablePosition;
/**

   @author Philogelos
   @created ÁàÔ 23 ÁÕÝ 1998 19:46:51
*/
abstract class MutablePositionEnumeration : public PositionEnumeration
{
  /**
	 Returns next mutable position in this sequence.

	 @see #getNextElement
  */
public: virtual MutablePosition *getNextMutablePosition() = 0;

public: virtual Position *getNextPosition();

public: static MutablePositionEnumeration *createMutableFrom( TypedEnumeration< MutablePosition > *anEnum );

};

class MPEFromTyped : public MutablePositionEnumeration, virtual public Object
{
public: MPEFromTyped( TypedEnumeration< MutablePosition > *anEnum );
public: ~MPEFromTyped();
public: virtual MutablePosition *getNextMutablePosition();
public: virtual boolean hasMoreElements();

public:  virtual String  getClassName() const;
public:  virtual Top    *clone() const;
  
protected: TypedEnumeration< MutablePosition > *enumeration;
};

/* $Log: MutablePositionEnumeration.hpp,v $
 * Revision 1.2  1999/03/03 19:09:11  philogelos
 * Put sources under GNU Library License
 *
 * Revision 1.1.1.1  1998/11/25 20:11:06  philogelos
 * Quercus Robusta
 * */

/* __MUTABLEPOSITIONENUMERATION_HPP__ */
#endif