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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 _QUERYHOLDER_H
#define _QUERYHOLDER_H
#include "Define.h"
#include "DatabaseEnvFwd.h"
#include <vector>
class MySQLConnection;
class TC_DATABASE_API SQLQueryHolderBase
{
friend class SQLQueryHolderTask;
private:
std::vector<std::pair<PreparedStatementBase*, PreparedQueryResult>> m_queries;
public:
SQLQueryHolderBase() = default;
virtual ~SQLQueryHolderBase();
void SetSize(size_t size);
PreparedQueryResult GetPreparedResult(size_t index) const;
void SetPreparedResult(size_t index, PreparedResultSet* result);
protected:
bool SetPreparedQueryImpl(size_t index, PreparedStatementBase* stmt);
};
template<typename T>
class SQLQueryHolder : public SQLQueryHolderBase
{
public:
bool SetPreparedQuery(size_t index, PreparedStatement<T>* stmt)
{
return SetPreparedQueryImpl(index, stmt);
}
};
class TC_DATABASE_API SQLQueryHolderTask
{
public:
static bool Execute(MySQLConnection* conn, SQLQueryHolderBase* holder);
};
class TC_DATABASE_API SQLQueryHolderCallback
{
public:
SQLQueryHolderCallback(std::shared_ptr<SQLQueryHolderBase>&& holder, QueryResultHolderFuture&& future)
: m_holder(std::move(holder)), m_future(std::move(future)) { }
SQLQueryHolderCallback(SQLQueryHolderCallback&&) = default;
SQLQueryHolderCallback& operator=(SQLQueryHolderCallback&&) = default;
void AfterComplete(std::function<void(SQLQueryHolderBase const&)> callback) &
{
m_callback = std::move(callback);
}
bool InvokeIfReady();
std::shared_ptr<SQLQueryHolderBase> m_holder;
QueryResultHolderFuture m_future;
std::function<void(SQLQueryHolderBase const&)> m_callback;
};
#endif
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