SQLOperation.h

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef _SQLOPERATION_H
#define _SQLOPERATION_H
 
#include "Define.h"
#include "DatabaseEnvFwd.h"
 
//- Union that holds element data
union SQLElementUnion
{
    PreparedStatementBase* stmt;
    char const* query;
};
 
//- Type specifier of our element data
enum SQLElementDataType
{
    SQL_ELEMENT_RAW,
    SQL_ELEMENT_PREPARED
};
 
//- The element
struct SQLElementData
{
    SQLElementUnion element;
    SQLElementDataType type;
};
 
class MySQLConnection;
 
class TC_DATABASE_API SQLOperation
{
    public:
        SQLOperation(): m_conn(nullptr) { }
        virtual ~SQLOperation() { }
 
        virtual int call()
        {
            Execute();
            return 0;
        }
        virtual bool Execute() = 0;
        virtual void SetConnection(MySQLConnection* con) { m_conn = con; }
 
        MySQLConnection* m_conn;
 
    private:
        SQLOperation(SQLOperation const& right) = delete;
        SQLOperation& operator=(SQLOperation const& right) = delete;
};
 
#endif