sqlIfError.h

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/*******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
*******************************************************************************/


#pragma once

#include "vlDatabase.h"

#ifdef _WIN32
#include <windows.h>
#include <sqltypes.h>
#include <odbcinst.h>
#else
#include <sqltypes.h>
#include <iodbcinst.h>
#endif
#if !defined(_INC_STDIO) && !defined(_STDIO_H)
#include <stdio.h>
#endif


//
// class DtSqlIfErrorHandler:
//
// Since the process for getting error information from the ODBC driver is 
// somewhat circuitous, this class encapsulates the necessary calls, and writes 
// any error messages to the log file provided. It checks the return code 
// provided, so processReturnCode may be called immediately after any ODBC 
// interface call without checking the returned error code first.
//
class DT_DLL_VLDB DtSqlIfErrorHandler
{
public:
   // Default constructor
   DtSqlIfErrorHandler();

   // Destructor
   virtual ~DtSqlIfErrorHandler();

   // process the return code from an ODBC interface call
   virtual void processRetCode(
      SQLRETURN retCode, SQLSMALLINT handle_type, SQLHANDLE handle );

   static bool SqlSuccess(SQLRETURN rc);
};

inline bool DtSqlIfErrorHandler::SqlSuccess(SQLRETURN rc)
{
   return ( (rc == SQL_SUCCESS) || (rc == SQL_SUCCESS_WITH_INFO) );
}