TimeMeasurement.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware 
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob 
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free 
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM 
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU 
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do 
GNU versao 2 para mais detalhes. 

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto 
com este programa; se nao, escreva para a Free Software Foundation, Inc., no 
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA. 

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under 
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

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 version 2 for more 
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef _TIMEMEASUREMENT_H_
#define _TIMEMEASUREMENT_H_

#include "util/functions.h"
using namespace br::pucrio::telemidia::util;

#include <string>
using namespace std;

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace ncl {
namespace model {
namespace time {
    class TimeMeasurement {
        protected:
            double expectedValue;
            double actualValue;

        public:
            TimeMeasurement(double value);
            virtual ~TimeMeasurement(){};
            double getExpectedValue();
            virtual double getComputedValue();
            virtual void setComputedValue(double value){};
            double getActualValue();
            void setExpectedValue(double value);
            void setActualValue(double value);
            virtual bool isPredictable();
            virtual bool isComputed();
            string toString();

        protected:
            virtual void overwrite(TimeMeasurement* time);

        public:
            virtual TimeMeasurement* duplicate();
            virtual double getValue();
            void fromString(string str);
    };
}
}
}
}
}
}
}

#endif //_TIMEMEASUREMENT_H_