mediator.h

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/***************************************************************************
 *   Copyright (C) 2005 by Robot Group Leipzig                             *
 *    martius@informatik.uni-leipzig.de                                    *
 *    fhesse@informatik.uni-leipzig.de                                     *
 *    der@informatik.uni-leipzig.de                                        *
 *    guettler@informatik.uni-leipzig.de                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
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 ***************************************************************************
 *                                                                         *
 *  DESCRIPTION                                                            *
 *  
 *                                                                         *
 *                                                                         *
 *  $Log: mediator.h,v $
 *  Revision 1.1  2009/08/10 07:34:49  guettler
 *  -Base classes which support use of design pattern
 *   mediator - similar to callbackable, but with more functionality:
 *   The mediator takes a more central role in mediation, the collegues
 *   are able to inform the mediator that something happend with
 *   easy use of mediated events (MediatorEvent).
 *                                                                                 *
 *                                                                         *
 **************************************************************************/
#ifndef __MEDIATOR_H_
#define __MEDIATOR_H_


#include "mediatorcollegue.h"
#include <vector>

/**
 * The default MediatorEvent holds no information,
 * the implementation of the mediator should implement a
 * derived version of the MediatorEvent.
 */
class MediatorEvent
{
  public:
};

class Mediator
{
  public:
    typedef std::vector<MediatorCollegue*> MediatorCollegueListType;

    Mediator();
    virtual ~Mediator();

    virtual void mediatorInformed(MediatorCollegue* source, MediatorEvent* event) = 0;

    void addMediatorCollegue(MediatorCollegue* collegue);

    void removeAllMediatorCollegues();

    MediatorCollegue* getMediatorCollegue(int index);

    unsigned int getMediatorCollegueIndex(MediatorCollegue* collegue);

    unsigned int getNumberOfMediatorCollegues();

    void mediate(int indexOfMediatorCollegue, MediatorEvent* event);

    void mediate(MediatorCollegue* collegue, MediatorEvent* event);

    void mediateToAll(MediatorEvent* event);

    void mediateToAllQMP(MediatorEvent* event);



  protected:


  private:
    MediatorCollegueListType collegueList;
};

#endif /* _MEDIATOR_H_ */

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