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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.
*/
#pragma once
#include "mongo/s/database_version_gen.h"
namespace mongo {
class DatabaseVersion : private DatabaseVersionBase {
public:
using DatabaseVersionBase::getLastMod;
using DatabaseVersionBase::toBSON;
// It returns a new DatabaseVersion marked as fixed. A fixed database version is used to
// distinguish databases that do not have entries in the sharding catalog, such as 'config' and
// 'admin'
static DatabaseVersion makeFixed();
DatabaseVersion() = default;
explicit DatabaseVersion(const BSONObj& obj) {
DatabaseVersionBase::parseProtected(IDLParserErrorContext("DatabaseVersion"), obj);
}
explicit DatabaseVersion(mongo::UUID uuid) : DatabaseVersionBase(/* lastMod */ 1) {
setUuid(uuid);
}
DatabaseVersion makeUpdated() const;
bool operator==(const DatabaseVersion& other) const {
return getUuid() == other.getUuid() && getLastMod() == other.getLastMod();
}
bool operator!=(const DatabaseVersion& other) const {
return !(*this == other);
}
bool isFixed() const {
return getLastMod() == 0;
}
mongo::UUID getUuid() const {
return *DatabaseVersionBase::getUuid();
}
};
} // namespace mongo
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