dbcontrol.h

数据库模拟程序 实现控制台命令词法分析

// DBControl.h: interface for the CDBControl class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_DBCONTROL_H__D909373F_C69E_4F35_92F9_58F0ADEF999F__INCLUDED_)
#define AFX_DBCONTROL_H__D909373F_C69E_4F35_92F9_58F0ADEF999F__INCLUDED_

#include "StdAfx.h"	// Added by ClassView
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "RunTimer.h"
#include "User.h"


class CDBControl  
{
public:
	int ConvertWordToRightId(Word wordItem);
	int Revoke(CString str, Word word[], int len);
	int Grant(CString str, Word word[], int len);
	bool CheckRight(int cmdId);
	int Select_Index(CString str, Word word[], int len);
	int noIndex;
	int AddRecordIndex(char tableName[],long &startOffset, char dataName[]);
	int ReadTable(char filename[], long indexID, Data &data);
	int show(CString str, Word word[], int len);
	int Delete(CString str, Word word[], int len);
	int Alter(CString str, Word word[], int len);
	int getIndexFromCiDian(IndexForCiDian &index, Data &data, char name[]);
	int UpdateTable(CString strCmd, Word word[], int len);
	int RewriteCiDian();
	int RewriteIndexFile();
	int CDBControl::ReadFromCiDian(long indexID, Data &data);
	int ReadFromCiDian(const IndexForCiDian &index, Data &data);
	int InsertIntoValue(CString strCmd, Word word[], int len);
	int Select_noIndex(CString str, Word word[], int len);
	long findInIndexFile(IndexForCiDian &findIndex);
	int Drop(CString  CmdLine, Word word[], int LenOfWord);
	void ReadFromIndex();
	int CDBControl::ReadFromIndex(long indexID, IndexForCiDian &index);
	
	class CUser currentUser;
	int len;
	Word* word;

	CDBControl(CString str, Word *word, int LenOfWord);
	void CheckCMD(int cmdType);
	int indexArray_len;
	int dataArray_len;
	int initTable();
	Data data;
	IndexForCiDian *indexArray;
	int AddToDataCiDian(const Data &dataFile, long &start);
	int AddToIndex_ForCiDian(const IndexForCiDian &index);
	int isExistTheKey(CString str);
	CString m_strCmd;
	int CreateTable(CString  CmdLine, Word word[], int LenOfWord);
	CDBControl();
	virtual ~CDBControl();

};

#endif // !defined(AFX_DBCONTROL_H__D909373F_C69E_4F35_92F9_58F0ADEF999F__INCLUDED_)