SingletonDestroyer.h

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/***************************************************************************
 *   Copyright (C) 2004 by Olivier Stezowski                               *
 *   stezow(AT)ipnl.in2p3.fr                                               *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef Gw_SingletonDestroyer
#define Gw_SingletonDestroyer


template<typename Data_T> class SingletonDestroyer 
{
public:
        SingletonDestroyer(Data_T *t = 0x0) : fTheSingletonToDestroy(t) 
                {;}
        virtual ~SingletonDestroyer()
        {
                if ( fTheSingletonToDestroy )
                        delete fTheSingletonToDestroy;
                
                fTheSingletonToDestroy = 0x0;
        }
        void SetSingleton(Data_T *t)
        {
                fTheSingletonToDestroy = t;
        }
        
private:
        Data_T *fTheSingletonToDestroy;
};

#endif