mysql5/mysql-5.7.27/client/dump/composite_message_handler.h

60 lines
1.7 KiB
C++

/*
Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef COMPOSITE_MESSAGE_HANDLER_INCLUDED
#define COMPOSITE_MESSAGE_HANDLER_INCLUDED
#include "i_callable.h"
#include "instance_callback.h"
#include "base/message_data.h"
#include <vector>
namespace Mysql{
namespace Tools{
namespace Dump{
class Composite_message_handler
{
public:
static Mysql::I_callable<bool, const Mysql::Tools::Base::Message_data&>*
create_composite_handler
(const std::vector<Mysql::I_callable<bool,
const Mysql::Tools::Base::Message_data&>*>&
message_handlers);
private:
Composite_message_handler(
const std::vector<Mysql::I_callable<
bool, const Mysql::Tools::Base::Message_data&>*>&
message_handlers);
/**
Passes message to message callbacks in reverse order, stopping on first
handler to declare message consumed.
*/
bool pass_message(const Mysql::Tools::Base::Message_data& message_data);
std::vector<Mysql::I_callable<
bool, const Mysql::Tools::Base::Message_data&>*>
m_message_handlers;
};
}
}
}
#endif