phpman > perldoc > MongoDB::ReadConcern(3pm)

NAME
    MongoDB::ReadConcern - Encapsulate and validate a read concern

VERSION
    version v2.2.2

SYNOPSIS
        $rc = MongoDB::ReadConcern->new(); # no defaults

        $rc = MongoDB::ReadConcern->new(
            level    => 'local',
        );

DESCRIPTION
    A Read Concern describes the constraints that MongoDB must satisfy when reading data. Read
    Concern was introduced in MongoDB 3.2.

ATTRIBUTES
  level
    The read concern level determines the consistency level required of data being read.

    The default level is "undef", which means the server will use its configured default.

    If the level is set to "local", reads will return the latest data a server has locally.

    Additional levels are storage engine specific. See Read Concern
    <http://docs.mongodb.org/manual/search/?query=readConcern> in the MongoDB documentation for more
    details.

    This may be set in a connection string with the the "readConcernLevel" option.

AUTHORS
    *   David Golden <david AT mongodb.com>

    *   Rassi <rassi AT mongodb.com>

    *   Mike Friedman <friedo AT friedo.com>

    *   Kristina Chodorow <k.chodorow AT gmail.com>

    *   Florian Ragwitz <rafl AT debian.org>

COPYRIGHT AND LICENSE
    This software is Copyright (c) 2020 by MongoDB, Inc.

    This is free software, licensed under:

      The Apache License, Version 2.0, January 2004