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

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1.4 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 I_DUMP_TASK_INCLUDED
#define I_DUMP_TASK_INCLUDED
#include "i_data_object.h"
namespace Mysql{
namespace Tools{
namespace Dump{
/**
Interface for all individual dump process tasks.
*/
class I_dump_task
{
public:
virtual ~I_dump_task();
virtual I_data_object* get_related_db_object() const= 0;
/**
Returns true if task was fully completed by all elements of chain.
*/
virtual bool is_completed() const= 0;
/**
Sets task completed flag. Need to be called once main chain element
receives completion report.
*/
virtual void set_completed()= 0;
/**
Returns true if task can start processing, for example when all
dependencies are met.
*/
virtual bool can_be_executed() const= 0;
};
}
}
}
#endif