// $Revision: 1.12 $
//------------------------------------------------------------------------------
//
// Copyright (C) 1994, 1995 Taligent, Inc. All rights reserved.
//
// Project:			StockBrowser
// File:			StockDatabase.h
// Build/Version:	1.0.0
//
// Description:		MStockDatabase defines the protocol for objects which
//					maintain and export stock data.
//
//					TStockDatabase is an abstract base class for stock
//					database objects that must be able to stream.
//
//------------------------------------------------------------------------------

#ifndef TaligentSamples_STOCKDATABASE
#define TaligentSamples_STOCKDATABASE

class MStockDatabase;
class TStockDatabase;

#ifndef TaligentSamples_STOCKTYPES
#include <StockTypes.h>
#endif

class TStockData;
class TStockDay;
class TCollectionOf<TStandardText>;
class TCollectionOf<TStockData>;
class TCollectionOf<TStockDay>;

//==============================================================================
// MStockDatabase

class MStockDatabase {
public:
    					MStockDatabase();
	virtual 			~MStockDatabase();

	virtual void		CopyAvailableNames(TCollectionOf<TStandardText>& collectionToFill) = 0;
	virtual void		CopyAllStocks(TCollectionOf<TStockData>& collectionToFill) = 0;
	virtual TStockData*	CopyStock(const TStandardText& stockName) = 0;
	virtual bool		CopyStockData(const TStandardText& stockName,
							TCollectionOf<TStockDay>& collectionToFill,
							const TRangeOfDays& range = TRangeOfDays::kAllDays) = 0;
	virtual TPseudoTimeStamp
						GetTimeStamp() = 0;

protected:
 						MStockDatabase(const MStockDatabase& source);
	MStockDatabase&		operator=(const MStockDatabase& source);
};

//==============================================================================
// TStockDatabase

class TStockDatabase : public MStockDatabase {
public:
	TaligentTypeExtensionDeclarationsMacro_Abstract(TStockDatabase)

public:
    					TStockDatabase();
	virtual 			~TStockDatabase();

	virtual TStream&	operator>>=(TStream& toStream) const;
	virtual TStream&	operator<<=(TStream& fromStream);

protected:
 						TStockDatabase(const TStockDatabase& source);
	TStockDatabase&		operator=(const TStockDatabase& source);

private:
	enum				{kOriginalVersion};
};

#endif