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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="zookeeperconfig.add" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>ZookeeperConfig::add</refname>
<refpurpose>Add servers to the ensemble</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis role="oop">
<modifier>public</modifier>
<type>void</type><methodname>ZookeeperConfig::add</methodname>
<methodparam><type>string</type><parameter>members</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>version</parameter><initializer>-1</initializer></methodparam>
<methodparam choice="opt"><type>array</type><parameter role="reference">stat</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>members</parameter></term>
<listitem>
<para>
Comma separated list of servers to be added to the ensemble. Each has a configuration line for a server to be added (as would appear in a
configuration file), only for maj. quorums.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>version</parameter></term>
<listitem>
<para>
The expected version of the node. The function will fail if the actual version of the node does not match the expected version. If -1 is used the version check will not take place.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>stat</parameter></term>
<listitem>
<para>
If not NULL, will hold the value of stat for the path on return.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.void;
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
This method emits <classname>ZookeeperException</classname> and it's derivatives when parameters count or types are wrong or fail to save value to node.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example xml:id="zookeeperconfig.add.example.basic">
<title><methodname>ZookeeperConfig::add</methodname> example</title>
<para>
Add members.
</para>
<programlisting role="php">
<![CDATA[
<?php
$client = new Zookeeper();
$client->connect('localhost:2181');
$client->addAuth('digest', 'timandes:timandes');
$zkConfig = $client->getConfig();
$zkConfig->set("server.1=localhost:2888:3888:participant;0.0.0.0:2181");
$zkConfig->add("server.2=localhost:2889:3889:participant;0.0.0.0:2182");
$r = $zkConfig->get();
if ($r)
echo $r;
else
echo 'ERR';
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
server.1=localhost:2888:3888:participant;0.0.0.0:2181
server.2=localhost:2889:3889:participant;0.0.0.0:2182
version=0xca01e881a2
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><methodname>ZookeeperConfig::get</methodname></member>
<member><methodname>ZookeeperConfig::set</methodname></member>
<member><methodname>ZookeeperConfig::remove</methodname></member>
<member><classname>ZookeeperException</classname></member>
</simplelist>
</refsect1>
</refentry>
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