lyfz_repos/经典版源码/AdoImpl/ADODatabase.h

/*************************************************************
/* Copyright (C), 2014-2020, lyfz. Co., Ltd.
/* 文件名:		ADODatabase.h 
/* 作者:		Jeff.w			 
/* 创建日期:	2014-08-16
/* 版本号:		V1.0
/* 描述:		核心层底,数据库ADO编程
/* 其它:  
/* 主要类模块: 
/* 历史修改记录: 
/*		作者           时间              版本           描述
/*	    Jeff.w         14/08/18          1.0	      创建这个模块
***************************************************************/

#ifndef __ADO_DATABASE_HEADER__
#define __ADO_DATABASE_HEADER__

#pragma once

#include "AdoDef.h"

class CADODatabase
{
public:
	enum cadoConnectModeEnum
	{	
		connectModeUnknown = adModeUnknown,
		connectModeRead = adModeRead,
		connectModeWrite = adModeWrite,
		connectModeReadWrite = adModeReadWrite,
		connectModeShareDenyRead = adModeShareDenyRead,
		connectModeShareDenyWrite = adModeShareDenyWrite,
		connectModeShareExclusive = adModeShareExclusive,
		connectModeShareDenyNone = adModeShareDenyNone
	};

	CADODatabase()
	{
		::CoInitialize(NULL);

		m_pConnection = NULL;
		m_strConnection = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		m_pConnection.CreateInstance(__uuidof(Connection));
		m_nRecordsAffected = 0;
		m_nConnectionTimeout = 0;
	}

	virtual ~CADODatabase()
	{
		Close();
		m_pConnection.Release();
		m_pConnection = NULL;
		m_strConnection = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		::CoUninitialize();
	}

	BOOL Execute(LPCTSTR lpstrExec);
	BOOL Open(LPCTSTR lpstrConnection = _T(""), LPCTSTR lpstrUserID = _T(""), LPCTSTR lpstrPassword = _T(""));
	BOOL IsOpen();
	void Close();
	// inline func;
	inline _ConnectionPtr GetActiveConnection() {return m_pConnection;};
	inline int GetRecordsAffected(){return m_nRecordsAffected;};
	inline DWORD GetRecordCount(_RecordsetPtr m_pRs);
	inline long BeginTransaction() {return m_pConnection->BeginTrans();};
	inline long CommitTransaction() {return m_pConnection->CommitTrans();};
	inline long RollbackTransaction() {return m_pConnection->RollbackTrans();};

	inline void SetConnectionMode(cadoConnectModeEnum nMode){m_pConnection->PutMode((enum ConnectModeEnum)nMode);};
	inline void SetConnectionString(LPCTSTR lpstrConnection){m_strConnection = lpstrConnection;};
	inline CString GetConnectionString(){return m_strConnection;};
	inline CString GetLastErrorString() {return m_strLastError;};
	inline DWORD GetLastError(){return m_dwLastError;};
	CString GetErrorDescription() {return m_strErrorDescription;};
	void SetConnectionTimeout(long nConnectionTimeout = 30) {m_nConnectionTimeout = nConnectionTimeout;};

protected:
	void dump_com_error(_com_error &e);

public:
	_ConnectionPtr m_pConnection;

protected:
	CString m_strConnection;
	CString m_strLastError;
	CString m_strErrorDescription;
	DWORD m_dwLastError;
	int m_nRecordsAffected;
	long m_nConnectionTimeout;
};
#endif