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<title>The MongoDB\Driver\WriteConcern class</title>
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<h1 class="title">The MongoDB\Driver\WriteConcern class</h1>
<div class="partintro"><p class="verinfo">(mongodb >=1.0.0)</p>
<div class="section" id="mongodb-driver-writeconcern.intro">
<h2 class="title">Introduction</h2>
<p class="para">
<strong class="classname">MongoDB\Driver\WriteConcern</strong> describes the level of
acknowledgement requested from MongoDB for write operations to a standalone
<em>mongod</em> or to replica sets or to sharded clusters. In
sharded clusters, <em>mongos</em> instances will pass the write
concern on to the shards.
</p>
</div>
<div class="section" id="mongodb-driver-writeconcern.synopsis">
<h2 class="title">Class synopsis</h2>
<div class="classsynopsis">
<div class="ooclass"></div>
<div class="classsynopsisinfo">
<span class="modifier">final</span>
<span class="ooclass">
<strong class="classname">MongoDB\Driver\WriteConcern</strong>
</span>
<span class="oointerface">implements
<span class="interfacename"><a href="class.mongodb-bson-serializable.html" class="interfacename">MongoDB\BSON\Serializable</a></span>
</span>
{</div>
<div class="classsynopsisinfo classsynopsisinfo_comment">/* Constants */</div>
<div class="fieldsynopsis">
<span class="modifier">const</span>
<span class="type">string</span>
<var class="fieldsynopsis_varname"><a href="class.mongodb-driver-writeconcern.html#mongodb-driver-writeconcern.constants.majority"><var class="varname">MAJORITY</var></a></var>
<span class="initializer"> = "majority"</span>
;</div>
<div class="classsynopsisinfo classsynopsisinfo_comment">/* Methods */</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="type">object</span> <span class="methodname"><a href="mongodb-driver-writeconcern.bsonserialize.html" class="methodname">bsonSerialize</a></span>
( <span class="methodparam">void</span>
)</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="methodname"><a href="mongodb-driver-writeconcern.construct.html" class="methodname">__construct</a></span>
( <span class="methodparam"><span class="type"><span class="type string|integer">string|integer</span></span> <code class="parameter">$w</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$wtimeout</code></span>
[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$journal</code></span>
]] )</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="type">boolean|null</span> <span class="methodname"><a href="mongodb-driver-writeconcern.getjournal.html" class="methodname">getJournal</a></span>
( <span class="methodparam">void</span>
)</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="type">string|integer|null</span> <span class="methodname"><a href="mongodb-driver-writeconcern.getw.html" class="methodname">getW</a></span>
( <span class="methodparam">void</span>
)</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="type">int</span> <span class="methodname"><a href="mongodb-driver-writeconcern.getwtimeout.html" class="methodname">getWtimeout</a></span>
( <span class="methodparam">void</span>
)</div>
<div class="methodsynopsis dc-description">
<span class="modifier">final</span> <span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><a href="mongodb-driver-writeconcern.isdefault.html" class="methodname">isDefault</a></span>
( <span class="methodparam">void</span>
)</div>
}</div>
</div>
<div class="section" id="mongodb-driver-writeconcern.constants">
<h2 class="title">Predefined Constants</h2>
<dl>
<dt id="mongodb-driver-writeconcern.constants.majority"><strong><code>MongoDB\Driver\WriteConcern::MAJORITY</code></strong></dt>
<dd>
<p class="para">
Majority of all the members in the set; arbiters, non-voting members,
passive members, hidden members and delayed members are all included in
the definition of majority write concern.
</p>
</dd>
</dl>
</div>
<div class="section">
<h2 class="title">Changelog</h2>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>1.2.0</td>
<td>
Implements <span class="interfacename"><a href="class.mongodb-bson-serializable.html" class="interfacename">MongoDB\BSON\Serializable</a></span>.
</td>
</tr>
</tbody>
</table>
</p>
</div>
</div>
<h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="mongodb-driver-writeconcern.bsonserialize.html">MongoDB\Driver\WriteConcern::bsonSerialize</a> — Returns an object for BSON serialization</li><li><a href="mongodb-driver-writeconcern.construct.html">MongoDB\Driver\WriteConcern::__construct</a> — Create a new WriteConcern</li><li><a href="mongodb-driver-writeconcern.getjournal.html">MongoDB\Driver\WriteConcern::getJournal</a> — Returns the WriteConcern's "journal" option</li><li><a href="mongodb-driver-writeconcern.getw.html">MongoDB\Driver\WriteConcern::getW</a> — Returns the WriteConcern's "w" option</li><li><a href="mongodb-driver-writeconcern.getwtimeout.html">MongoDB\Driver\WriteConcern::getWtimeout</a> — Returns the WriteConcern's "wtimeout" option</li><li><a href="mongodb-driver-writeconcern.isdefault.html">MongoDB\Driver\WriteConcern::isDefault</a> — Checks if this is the default write concern</li></ul>
</div>
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