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Manual Reference Pages  -  MONGODB::READCONCERN (3)

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NAME

MongoDB::ReadConcern - Encapsulate and validate a read concern

CONTENTS

VERSION

version v1.2.3

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

o David Golden <david@mongodb.com>
o Mike Friedman <friedo@friedo.com>
o Kristina Chodorow <k.chodorow@gmail.com>
o Florian Ragwitz <rafl@debian.org>

COPYRIGHT AND LICENSE

This software is Copyright (c) 2016 by MongoDB, Inc..

This is free software, licensed under:



  The Apache License, Version 2.0, January 2004



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perl v5.20.3 MONGODB::READCONCERN (3) 2016-03-08

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