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# Copyright (C) 2020-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.
#
global:
cpp_namespace: "mongo"
imports:
- "mongo/db/basic_types.idl"
enums:
ReadPreference:
description: Enumeration representing Read Preference Modes
type: string
values:
# Read from primary only. All operations produce an error (throw an exception where
# applicable) if primary is unavailable. Cannot be combined with tags.
PrimaryOnly: "primary"
#
# Read from primary if available, otherwise a secondary. Tags will only be applied in the
# event that the primary is unavailable and a secondary is read from. In this event only
# secondaries matching the tags provided would be read from.
PrimaryPreferred: "primaryPreferred"
#
# Read from secondary if available, otherwise error.
SecondaryOnly: "secondary"
#
# Read from a secondary if available, otherwise read from the primary.
SecondaryPreferred: "secondaryPreferred"
#
# Read from any member.
Nearest: "nearest"
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