<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qxmlnamepool.cpp -->
<title>Qt 4.8: QXmlNamePool Class Reference</title>
<link rel="stylesheet" type="text/css" href="style/style.css" />
<script src="scripts/jquery.js" type="text/javascript"></script>
<script src="scripts/functions.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="style/superfish.css" />
<link rel="stylesheet" type="text/css" href="style/narrow.css" />
<!--[if IE]>
<meta name="MSSmartTagsPreventParsing" content="true">
<meta http-equiv="imagetoolbar" content="no">
<![endif]-->
<!--[if lt IE 7]>
<link rel="stylesheet" type="text/css" href="style/style_ie6.css">
<![endif]-->
<!--[if IE 7]>
<link rel="stylesheet" type="text/css" href="style/style_ie7.css">
<![endif]-->
<!--[if IE 8]>
<link rel="stylesheet" type="text/css" href="style/style_ie8.css">
<![endif]-->
<script src="scripts/superfish.js" type="text/javascript"></script>
<script src="scripts/narrow.js" type="text/javascript"></script>
</head>
<body class="" onload="CheckEmptyAndLoadList();">
<div class="header" id="qtdocheader">
<div class="content">
<div id="nav-logo">
<a href="index.html">Home</a></div>
<a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a>
<div id="narrowsearch"></div>
<div id="nav-topright">
<ul>
<li class="nav-topright-home"><a href="http://qt.digia.com/">Qt HOME</a></li>
<li class="nav-topright-dev"><a href="http://qt-project.org/">DEV</a></li>
<li class="nav-topright-doc nav-topright-doc-active"><a href="http://qt-project.org/doc/">
DOC</a></li>
<li class="nav-topright-blog"><a href="http://blog.qt.digia.com/">BLOG</a></li>
</ul>
</div>
<div id="shortCut">
<ul>
<li class="shortCut-topleft-inactive"><span><a href="index.html">Qt 4.8</a></span></li>
<li class="shortCut-topleft-active"><a href="http://qt-project.org/doc/">ALL VERSIONS </a></li>
</ul>
</div>
<ul class="sf-menu" id="narrowmenu">
<li><a href="#">API Lookup</a>
<ul>
<li><a href="classes.html">Class index</a></li>
<li><a href="functions.html">Function index</a></li>
<li><a href="modules.html">Modules</a></li>
<li><a href="namespaces.html">Namespaces</a></li>
<li><a href="qtglobal.html">Global Declarations</a></li>
<li><a href="qdeclarativeelements.html">QML elements</a></li>
</ul>
</li>
<li><a href="#">Qt Topics</a>
<ul>
<li><a href="qt-basic-concepts.html">Programming with Qt</a></li>
<li><a href="qtquick.html">Device UIs & Qt Quick</a></li>
<li><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
<li><a href="supported-platforms.html">Supported Platforms</a></li>
<li><a href="technology-apis.html">Qt and Key Technologies</a></li>
<li><a href="best-practices.html">How-To's and Best Practices</a></li>
</ul>
</li>
<li><a href="#">Examples</a>
<ul>
<li><a href="all-examples.html">Examples</a></li>
<li><a href="tutorials.html">Tutorials</a></li>
<li><a href="demos.html">Demos</a></li>
<li><a href="qdeclarativeexamples.html">QML Examples</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="wrapper">
<div class="hd">
<span></span>
</div>
<div class="bd group">
<div class="sidebar">
<div class="searchlabel">
Search index:</div>
<div class="search" id="sidebarsearch">
<form id="qtdocsearch" action="" onsubmit="return false;">
<fieldset>
<input type="text" name="searchstring" id="pageType" value="" />
<div id="resultdialog">
<a href="#" id="resultclose">Close</a>
<p id="resultlinks" class="all"><a href="#" id="showallresults">All</a> | <a href="#" id="showapiresults">API</a> | <a href="#" id="showarticleresults">Articles</a> | <a href="#" id="showexampleresults">Examples</a></p>
<p id="searchcount" class="all"><span id="resultcount"></span><span id="apicount"></span><span id="articlecount"></span><span id="examplecount"></span> results:</p>
<ul id="resultlist" class="all">
</ul>
</div>
</fieldset>
</form>
</div>
<div class="box first bottombar" id="lookup">
<h2 title="API Lookup"><span></span>
API Lookup</h2>
<div id="list001" class="list">
<ul id="ul001" >
<li class="defaultLink"><a href="classes.html">Class index</a></li>
<li class="defaultLink"><a href="functions.html">Function index</a></li>
<li class="defaultLink"><a href="modules.html">Modules</a></li>
<li class="defaultLink"><a href="namespaces.html">Namespaces</a></li>
<li class="defaultLink"><a href="qtglobal.html">Global Declarations</a></li>
<li class="defaultLink"><a href="qdeclarativeelements.html">QML elements</a></li>
</ul>
</div>
</div>
<div class="box bottombar" id="topics">
<h2 title="Qt Topics"><span></span>
Qt Topics</h2>
<div id="list002" class="list">
<ul id="ul002" >
<li class="defaultLink"><a href="qt-basic-concepts.html">Programming with Qt</a></li>
<li class="defaultLink"><a href="qtquick.html">Device UIs & Qt Quick</a></li>
<li class="defaultLink"><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
<li class="defaultLink"><a href="supported-platforms.html">Supported Platforms</a></li>
<li class="defaultLink"><a href="technology-apis.html">Qt and Key Technologies</a></li>
<li class="defaultLink"><a href="best-practices.html">How-To's and Best Practices</a></li>
</ul>
</div>
</div>
<div class="box" id="examples">
<h2 title="Examples"><span></span>
Examples</h2>
<div id="list003" class="list">
<ul id="ul003">
<li class="defaultLink"><a href="all-examples.html">Examples</a></li>
<li class="defaultLink"><a href="tutorials.html">Tutorials</a></li>
<li class="defaultLink"><a href="demos.html">Demos</a></li>
<li class="defaultLink"><a href="qdeclarativeexamples.html">QML Examples</a></li>
</ul>
</div>
</div>
</div>
<div class="wrap">
<div class="toolbar">
<div class="breadcrumb toolblock">
<ul>
<li class="first"><a href="index.html">Home</a></li>
<!-- Breadcrumbs go here -->
<li><a href="modules.html">Modules</a></li>
<li><a href="qtxmlpatterns.html">QtXmlPatterns</a></li>
<li>QXmlNamePool</li>
</ul>
</div>
<div class="toolbuttons toolblock">
<ul>
<li id="smallA" class="t_button">A</li>
<li id="medA" class="t_button active">A</li>
<li id="bigA" class="t_button">A</li>
<li id="print" class="t_button"><a href="javascript:this.print();">
<span>Print</span></a></li>
</ul>
</div>
</div>
<div class="content mainContent">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<h1 class="title">QXmlNamePool Class Reference</h1>
<!-- $$$QXmlNamePool-brief -->
<p>The QXmlNamePool class is a table of shared strings referenced by instances of <a href="qxmlname.html">QXmlName</a>. <a href="#details">More...</a></p>
<!-- @@@QXmlNamePool -->
<pre class="cpp"> <span class="preprocessor">#include <QXmlNamePool></span></pre><p><b>Note:</b> All functions in this class are <a href="threads-reentrancy.html#reentrant">reentrant</a>.</p>
<p>This class was introduced in Qt 4.4.</p>
<ul>
<li><a href="qxmlnamepool-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlnamepool.html#QXmlNamePool">QXmlNamePool</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlnamepool.html#QXmlNamePool-2">QXmlNamePool</a></b> ( const QXmlNamePool & <i>other</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlnamepool.html#dtor.QXmlNamePool">~QXmlNamePool</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QXmlNamePool & </td><td class="memItemRight bottomAlign"><b><a href="qxmlnamepool.html#operator-eq">operator=</a></b> ( const QXmlNamePool & <i>other</i> )</td></tr>
</table>
<a name="details"></a>
<!-- $$$QXmlNamePool-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QXmlNamePool class is a table of shared strings referenced by instances of <a href="qxmlname.html">QXmlName</a>.</p>
<p>QXmlNamePool is used to optimize operations on instances of <a href="qxmlname.html">QXmlName</a>. An instance of <a href="qxmlname.html">QXmlName</a> represents an XML name in a way that allows the XML name to be compared and passed around efficiently. The efficiency is achieved by storing the strings comprising the XML names in an instance of QXmlNamePool, where they are mapped to binary identifiers, which are then packed into a key which is stored in the <a href="qxmlname.html">QXmlName</a>.</p>
<p>This means that each instance of <a href="qxmlname.html">QXmlName</a> is tied to the name pool it was created with, and that name pool should be kept in scope and used to create all instances of <a href="qxmlname.html">QXmlName</a> that might be compared. Note also that the name pool is required if you must reconstitute the <a href="qxmlname.html">QXmlName</a> as text, or if you must access any of its component strings, so although instances of <a href="qxmlname.html">QXmlName</a> can be compared without reference to a name pool, the name pool must be kept in scope if the name's strings must be accessed later.</p>
</div>
<p><b>See also </b><a href="qxmlname.html">QXmlName</a> and <a href="qxmlquery.html#namePool">QXmlQuery::namePool</a>().</p>
<!-- @@@QXmlNamePool -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QXmlNamePool[overload1]$$$QXmlNamePool -->
<h3 class="fn"><a name="QXmlNamePool"></a>QXmlNamePool::<span class="name">QXmlNamePool</span> ()</h3>
<p>Constructs an empty name pool.</p>
<!-- @@@QXmlNamePool -->
<!-- $$$QXmlNamePool$$$QXmlNamePoolconstQXmlNamePool& -->
<h3 class="fn"><a name="QXmlNamePool-2"></a>QXmlNamePool::<span class="name">QXmlNamePool</span> ( const <span class="type">QXmlNamePool</span> & <i>other</i> )</h3>
<p>Constructs a copy of the <i>other</i> name pool.</p>
<!-- @@@QXmlNamePool -->
<!-- $$$~QXmlNamePool[overload1]$$$~QXmlNamePool -->
<h3 class="fn"><a name="dtor.QXmlNamePool"></a>QXmlNamePool::<span class="name">~QXmlNamePool</span> ()</h3>
<p>Destroys the name pool. Instances of <a href="qxmlname.html">QXmlName</a> constructed with this name pool can still be compared after this destructor is called, but their text strings cannot be accessed.</p>
<!-- @@@~QXmlNamePool -->
<!-- $$$operator=[overload1]$$$operator=constQXmlNamePool& -->
<h3 class="fn"><a name="operator-eq"></a><span class="type">QXmlNamePool</span> & QXmlNamePool::<span class="name">operator=</span> ( const <span class="type">QXmlNamePool</span> & <i>other</i> )</h3>
<p>Assigns the <i>other</i> name pool to this one.</p>
<!-- @@@operator= -->
</div>
</div>
</div>
</div>
<div class="ft">
<span></span>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its
subsidiaries. Documentation contributions included herein are the copyrights of
their respective owners.</p>
<br />
<p>
The documentation provided herein is licensed under the terms of the
<a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation
License version 1.3</a> as published by the Free Software Foundation.</p>
<p>
Documentation sources may be obtained from <a href="http://www.qt-project.org">
www.qt-project.org</a>.</p>
<br />
<p>
Digia, Qt and their respective logos are trademarks of Digia Plc
in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. <a title="Privacy Policy"
href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p>
</div>
<script src="scripts/functions.js" type="text/javascript"></script>
</body>
</html>
