/*
 * (C) Copyright 1996-2016 ECMWF.
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */

/*! \file Decoder.h
    \brief Definition of the Abstract template class Decoder.
    
    Magics Team - ECMWF 2004
    
    Started: Fri 16-Jan-2004
    
    Changes:
    
*/

#ifndef Decoder_H
#define Decoder_H

#include "magics.h"


namespace magics {

class Decoder {

public:
	Decoder() {};
	virtual ~Decoder() {};
    //! Method to decode : abstract
    virtual void decode() = 0;

protected:
     //! Method to print string about this class on to a stream of type ostream (virtual).
	 virtual void print(ostream& out) const { out << "Base class Decoder"; }

private:
    //! Copy constructor - No copy allowed
	Decoder(const Decoder&);
    //! Overloaded << operator to copy - No copy allowed
	Decoder& operator=(const Decoder&);

// -- Friends
    //! Overloaded << operator to call print().
	friend ostream& operator<<(ostream& s,const Decoder& p)
		{ p.print(s); return s; }

};

} // namespace magics
#endif
