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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef ODBC_HANDLES_HandleBase_hpp
#define ODBC_HANDLES_HandleBase_hpp
#include <common/common.hpp>
#include <common/OdbcData.hpp>
#include <common/DiagArea.hpp>
#include <common/AttrArea.hpp>
/**
* @class HandleBase
* @brief Base class for handles
*
* Following types of handles exist:
* - HandleRoot : root node
* - HandleEnv : environment handle (SQLHENV)
* - HandleDbc : connection handle (SQLHDBC)
* - HandleStmt : statement handle (SQLHSTMT)
* - HandleDesc : descriptor handle (SQLHDESC)
*/
class HandleRoot;
class HandleBase {
public:
HandleBase();
virtual ~HandleBase() = 0;
virtual HandleBase* getParent() = 0;
virtual HandleRoot* getRoot() = 0;
virtual OdbcHandle odbcHandle() = 0;
void saveCtx(Ctx& ctx);
// allocate and free handles
virtual void sqlAllocHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase** ppChild) = 0;
virtual void sqlFreeHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase* pChild) = 0;
// get diagnostics
void sqlGetDiagField(Ctx& ctx, SQLSMALLINT recNumber, SQLSMALLINT diagIdentifier, SQLPOINTER diagInfo, SQLSMALLINT bufferLength, SQLSMALLINT* stringLength);
void sqlGetDiagRec(Ctx& ctx, SQLSMALLINT recNumber, SQLCHAR* sqlstate, SQLINTEGER* nativeError, SQLCHAR* messageText, SQLSMALLINT bufferLength, SQLSMALLINT* textLength);
void sqlError(Ctx& ctx, SQLCHAR* sqlstate, SQLINTEGER* nativeError, SQLCHAR* messageText, SQLSMALLINT bufferLength, SQLSMALLINT* textLength); // odbc2.0
// common code for attributes
void baseSetHandleAttr(Ctx& ctx, AttrArea& attrArea, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER stringLength);
void baseGetHandleAttr(Ctx& ctx, AttrArea& attrArea, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength);
void baseSetHandleOption(Ctx& ctx, AttrArea& attrArea, SQLUSMALLINT option, SQLUINTEGER value); // odbc2.0
void baseGetHandleOption(Ctx& ctx, AttrArea& attrArea, SQLUSMALLINT option, SQLPOINTER value); // odbc2.0
protected:
Ctx* m_ctx; // saved from last ODBC function
};
inline
HandleBase::HandleBase() :
m_ctx(0)
{
}
#endif
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