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/*
* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
*
* 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 _SQLOPERATION_H
#define _SQLOPERATION_H
#include <ace/Method_Request.h>
#include <ace/Activation_Queue.h>
#include "Common.h"
#include "Callback.h"
//- Forward declare (don't include header to prevent circular includes)
class PreparedStatement;
//- Union that holds element data
union SQLElementUnion
{
PreparedStatement* stmt;
const char* query;
};
//- Type specifier of our element data
enum SQLElementDataType
{
SQL_ELEMENT_RAW,
SQL_ELEMENT_PREPARED,
};
//- The element
struct SQLElementData
{
SQLElementUnion element;
SQLElementDataType type;
};
//- For ambigious resultsets
union SQLResultSetUnion
{
PreparedResultSet* presult;
ResultSet* qresult;
};
class MySQLConnection;
class SQLOperation : public ACE_Method_Request
{
public:
SQLOperation(){};
virtual int call()
{
Execute();
return 0;
}
virtual bool Execute() = 0;
virtual void SetConnection(MySQLConnection* con) { m_conn = con; }
MySQLConnection* m_conn;
};
typedef ACE_Future<QueryResult> QueryResultFuture;
/*! Raw, ad-hoc query. */
class BasicStatementTask : public SQLOperation
{
public:
BasicStatementTask(const char* sql);
BasicStatementTask(const char* sql, QueryResultFuture result);
~BasicStatementTask();
bool Execute();
private:
const char* m_sql; //- Raw query to be executed
bool m_has_result;
QueryResultFuture m_result;
};
class SQLQueryHolder
{
friend class SQLQueryHolderTask;
private:
typedef std::pair<SQLElementData, SQLResultSetUnion> SQLResultPair;
std::vector<SQLResultPair> m_queries;
public:
SQLQueryHolder() {}
~SQLQueryHolder();
bool SetQuery(size_t index, const char *sql);
bool SetPQuery(size_t index, const char *format, ...) ATTR_PRINTF(3,4);
bool SetPreparedQuery(size_t index, PreparedStatement* stmt);
void SetSize(size_t size);
QueryResult GetResult(size_t index);
PreparedQueryResult GetPreparedResult(size_t index);
void SetResult(size_t index, ResultSet* result);
void SetPreparedResult(size_t index, PreparedResultSet* result);
};
typedef ACE_Future<SQLQueryHolder*> QueryResultHolderFuture;
class SQLQueryHolderTask : public SQLOperation
{
private:
SQLQueryHolder * m_holder;
QueryResultHolderFuture m_result;
public:
SQLQueryHolderTask(SQLQueryHolder *holder, QueryResultHolderFuture res)
: m_holder(holder), m_result(res){};
bool Execute();
};
#endif
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