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<h1 class="title">QXmlNamePool Class</h1>
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<p>The <a href="qxmlnamepool.html">QXmlNamePool</a> class is a table of shared strings referenced by instances of <a href="qxmlname.html">QXmlName</a>. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QXmlNamePool></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += xmlpatterns</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 4.4</td></tr></table></div><p><b>Note:</b> All functions in this class are reentrant.</p>
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<h2 id="public-functions">Public Functions</h2>
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<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>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qxmlnamepool.html">QXmlNamePool</a> class is a table of shared strings referenced by instances of <a href="qxmlname.html">QXmlName</a>.</p>
<p><a href="qxmlnamepool.html">QXmlNamePool</a> 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 <a href="qxmlnamepool.html">QXmlNamePool</a>, 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>
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<p><b>See also </b><a href="qxmlname.html">QXmlName</a> and <a href="qxmlquery.html#namePool">QXmlQuery::namePool</a>().</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QXmlNamePool"><a name="QXmlNamePool"></a>QXmlNamePool::<span class="name">QXmlNamePool</span>()</h3>
<p>Constructs an empty name pool.</p>
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<h3 class="fn" id="QXmlNamePool-2"><a name="QXmlNamePool-2"></a>QXmlNamePool::<span class="name">QXmlNamePool</span>(const <span class="type"><a href="qxmlnamepool.html#QXmlNamePool">QXmlNamePool</a></span> &<i> other</i>)</h3>
<p>Constructs a copy of the <i>other</i> name pool.</p>
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<h3 class="fn" id="dtor.QXmlNamePool"><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>
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<h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qxmlnamepool.html#QXmlNamePool">QXmlNamePool</a></span> & QXmlNamePool::<span class="name">operator=</span>(const <span class="type"><a href="qxmlnamepool.html#QXmlNamePool">QXmlNamePool</a></span> &<i> other</i>)</h3>
<p>Assigns the <i>other</i> name pool to this one.</p>
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