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/* Copyright (c) 2018, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
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, version 2.0, 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 TRANSACTION_MESSAGE_INTERFACE_INCLUDED
#define TRANSACTION_MESSAGE_INTERFACE_INCLUDED
#include <mysql/group_replication_priv.h>
#include <vector>
#include "my_inttypes.h"
#include "plugin/group_replication/include/gcs_plugin_messages.h"
class Gcs_message_data;
/*
@class Transaction_message_interface
Parent class of the transaction messages-
*/
class Transaction_message_interface : public Plugin_gcs_message,
public Basic_ostream {
public:
explicit Transaction_message_interface(enum_cargo_type cargo_type)
: Plugin_gcs_message(cargo_type) {}
~Transaction_message_interface() override = default;
/**
Length of the message.
@return message length
*/
virtual uint64_t length() = 0;
/**
Get the Gcs_message_data object, which contains the serialized
transaction data.
The internal Gcs_message_data is nullified, to avoid further usage
of this Transaction object and the caller receives a pointer to the
previously internal Gcs_message_data, which whom it is now responsible.
@return the serialized transaction data in a Gcs_message_data object
*/
virtual Gcs_message_data *get_message_data_and_reset() = 0;
};
#endif /* TRANSACTION_MESSAGE_INTERFACE_INCLUDED */
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