csqldriver.h

很好用的数据库连接组件

#ifndef CSQLDRIVER_H
#define CSQLDRIVER_H

#include "CSqlError.h"
#include "CSqlQuery.h" 
#include "CSqlBcp.h" 

#ifdef WIN32
#pragma warning(disable:4786)
#endif


class CSqlDriver
{
public:
	CSqlDriver ();
	~CSqlDriver ();
	bool isOpen () const;
	bool isOpenError () const;

	virtual string nullText () const;
	CSqlError lastError () const;

	virtual bool open (const string & db = "",
		     const string & user = "",
		     const string & password = "",
		     const string & host = "",
		     const string & appName ="" , int port = -1) = 0;
	virtual void close () = 0;
	virtual CSqlQuery createQuery () const = 0;
	virtual CSqlBcp createBcp () const = 0;
	virtual bool useDb (const string & db)
	{
		return true;
	};

//protected:
	virtual void setOpen (bool o);
	virtual void setOpenError (bool e);
	virtual void setLastError (const CSqlError & e);
private:
	int dbState;
	CSqlError error;
	CSqlDriver (const CSqlDriver &);
	CSqlDriver & operator= (const CSqlDriver &);
};

#endif