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# Copyright (C) 2018-present MongoDB, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the Server Side Public License, version 1,
# as published by MongoDB, Inc.
#
# 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
# Server Side Public License for more details.
#
# You should have received a copy of the Server Side Public License
# along with this program. If not, see
# <http://www.mongodb.com/licensing/server-side-public-license>.
#
# As a special exception, the copyright holders give permission to link the
# code of portions of this program with the OpenSSL library under certain
# conditions as described in each individual source file and distribute
# linked combinations including the program with the OpenSSL library. You
# must comply with the Server Side Public License in all respects for
# all of the code used other than as permitted herein. If you modify file(s)
# with this exception, you may extend this exception to your version of the
# file(s), but you are not obligated to do so. If you do not wish to do so,
# delete this exception statement from your version. If you delete this
# exception statement from all source files in the program, then also delete
# it in the license file.
#
# DatabaseVersion type
global:
cpp_namespace: "mongo"
imports:
- "mongo/idl/basic_types.idl"
structs:
DatabaseVersion:
description: "A (UUID, int) pair that uniquely identifies an incarnation of a database in a cluster and reflects changes to the database's primary shard"
# The generated comparison operators will do a field-wise lexicographic comparison, which
# doesn't work because it's nonsensical to lexicographically compare UUIDs.
generate_comparison_operators: false
strict: true
fields:
uuid:
type: uuid
description: "a unique identifier to distinguish different incarnations of this database"
lastMod:
type: int
description: "an integer which is bumped whenever the database's primary shard changes"
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