//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TWArraysAr.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TWARRAYSAR_H_
#define _TWARRAYSAR_H_

#ifndef _TWARRAYAR_H_
#include "TWArrayAr.h"
#endif

#ifndef _TSPTABLE_H_
#include "TSPTable.h"
#endif

//内存数组集数据流，防止内存块过大
class GEOAPI TWArraysAr : public TWArchive
{
public:

	TWArraysAr(long unitSize = 1024);
	virtual ~TWArraysAr();

	virtual void Clear();
	virtual void Read(void *p,long size);
	virtual void Write(void *p,long size);
	
	long GetUnitSize() const;
	long GetUnit(long i) const;
	long GetSubIndex(long i) const;

protected:

	//单元尺寸
	long m_iUnitSize;

	//内部每个单元GetLength()都是m_iUnitSize
	TSPTable<TWArrayAr> m_bufTable;
};

#endif