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<h1>DOMUserDataHandler Class Reference</h1><!-- doxytag: class="DOMUserDataHandler" -->When associating an object to a key on a node using <code>setUserData</code> the application can provide a handler that gets called when the node the object is associated to is being cloned or imported.
<a href="#_details">More...</a>
<p>
<p>
<a href="classDOMUserDataHandler-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Public Constants</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869">DOMOperationType</a> { <a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869e4124a76c0b45067ad33d94d51f57c8b">NODE_CLONED</a> = 1,
<a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869dfded424f2d618b5903306add9283629">NODE_IMPORTED</a> = 2,
<a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869e65fa5913524dc1ad8383f3707376571">NODE_DELETED</a> = 3,
<a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869bc9e1802f11627cec5e4304aeef57090">NODE_RENAMED</a> = 4
}</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Operation Type. <a href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Destructor</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classDOMUserDataHandler.html#c56b9c2d438394b714f9c6bf2ee2c4f4">~DOMUserDataHandler</a> ()</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Destructor. <a href="#c56b9c2d438394b714f9c6bf2ee2c4f4"></a><br></td></tr>
<tr><td colspan="2"><div class="groupHeader">Functions introduced in DOM Level 3</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classDOMUserDataHandler.html#41e6a0bb8622bdfc11df4c1c61d79cc0">handle</a> (<a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869">DOMOperationType</a> operation, const XMLCh *const key, void *data, const <a class="el" href="classDOMNode.html">DOMNode</a> *src, const <a class="el" href="classDOMNode.html">DOMNode</a> *dst)=0</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">This method is called whenever the node for which this handler is registered is imported or cloned. <a href="#41e6a0bb8622bdfc11df4c1c61d79cc0"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Hidden constructors</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classDOMUserDataHandler.html#49d70baa6c54e9054421a19e93081118">DOMUserDataHandler</a> ()</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
When associating an object to a key on a node using <code>setUserData</code> the application can provide a handler that gets called when the node the object is associated to is being cloned or imported.
<p>
This can be used by the application to implement various behaviors regarding the data it associates to the DOM nodes. This interface defines that handler.<p>
<b>"Experimental - subject to change"</b><p>
See also the <a href="http://www.w3.org/2001/07/WD-DOM-Level-3-Core-20010726">Document Object Model (DOM) Level 3 Core Specification</a>. <dl class="since" compact><dt><b>Since:</b></dt><dd>DOM Level 3 </dd></dl>
<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="3fc45270dfc120a0d28090570e543869"></a><!-- doxytag: member="DOMUserDataHandler::DOMOperationType" ref="3fc45270dfc120a0d28090570e543869" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869">DOMUserDataHandler::DOMOperationType</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Operation Type.
<p>
<code>NODE_CLONED:</code> The node is cloned.<p>
<code>NODE_IMPORTED</code> The node is imported.<p>
<code>NODE_DELETED</code> The node is deleted.<p>
<code>NODE_RENAMED</code> The node is renamed.<p>
<b>"Experimental - subject to change"</b><p>
<dl class="since" compact><dt><b>Since:</b></dt><dd>DOM Level 3 </dd></dl>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="3fc45270dfc120a0d28090570e543869e4124a76c0b45067ad33d94d51f57c8b"></a><!-- doxytag: member="NODE_CLONED" ref="3fc45270dfc120a0d28090570e543869e4124a76c0b45067ad33d94d51f57c8b" args="" -->NODE_CLONED</em>&nbsp;</td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="3fc45270dfc120a0d28090570e543869dfded424f2d618b5903306add9283629"></a><!-- doxytag: member="NODE_IMPORTED" ref="3fc45270dfc120a0d28090570e543869dfded424f2d618b5903306add9283629" args="" -->NODE_IMPORTED</em>&nbsp;</td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="3fc45270dfc120a0d28090570e543869e65fa5913524dc1ad8383f3707376571"></a><!-- doxytag: member="NODE_DELETED" ref="3fc45270dfc120a0d28090570e543869e65fa5913524dc1ad8383f3707376571" args="" -->NODE_DELETED</em>&nbsp;</td><td>
</td></tr>
<tr><td valign="top"><em><a class="anchor" name="3fc45270dfc120a0d28090570e543869bc9e1802f11627cec5e4304aeef57090"></a><!-- doxytag: member="NODE_RENAMED" ref="3fc45270dfc120a0d28090570e543869bc9e1802f11627cec5e4304aeef57090" args="" -->NODE_RENAMED</em>&nbsp;</td><td>
</td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="49d70baa6c54e9054421a19e93081118"></a><!-- doxytag: member="DOMUserDataHandler::DOMUserDataHandler" ref="49d70baa6c54e9054421a19e93081118" args="()" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">DOMUserDataHandler::DOMUserDataHandler </td>
<td>(</td>
<td class="paramname"> </td>
<td>&nbsp;)&nbsp;</td>
<td width="100%"><code> [protected]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="c56b9c2d438394b714f9c6bf2ee2c4f4"></a><!-- doxytag: member="DOMUserDataHandler::~DOMUserDataHandler" ref="c56b9c2d438394b714f9c6bf2ee2c4f4" args="()" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">virtual DOMUserDataHandler::~DOMUserDataHandler </td>
<td>(</td>
<td class="paramname"> </td>
<td>&nbsp;)&nbsp;</td>
<td width="100%"><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Destructor.
<p>
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="41e6a0bb8622bdfc11df4c1c61d79cc0"></a><!-- doxytag: member="DOMUserDataHandler::handle" ref="41e6a0bb8622bdfc11df4c1c61d79cc0" args="(DOMOperationType operation, const XMLCh *const key, void *data, const DOMNode *src, const DOMNode *dst)=0" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">virtual void DOMUserDataHandler::handle </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classDOMUserDataHandler.html#3fc45270dfc120a0d28090570e543869">DOMOperationType</a>&nbsp;</td>
<td class="paramname"> <em>operation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const XMLCh *const &nbsp;</td>
<td class="paramname"> <em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&nbsp;</td>
<td class="paramname"> <em>data</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classDOMNode.html">DOMNode</a> *&nbsp;</td>
<td class="paramname"> <em>src</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classDOMNode.html">DOMNode</a> *&nbsp;</td>
<td class="paramname"> <em>dst</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
This method is called whenever the node for which this handler is registered is imported or cloned.
<p>
<b>"Experimental - subject to change"</b><p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>operation</em>&nbsp;</td><td>Specifies the type of operation that is being performed on the node. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>key</em>&nbsp;</td><td>Specifies the key for which this handler is being called. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>data</em>&nbsp;</td><td>Specifies the data for which this handler is being called. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>src</em>&nbsp;</td><td>Specifies the node being cloned, imported, or renamed. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dst</em>&nbsp;</td><td>Specifies the node newly created. </td></tr>
</table>
</dl>
<dl class="since" compact><dt><b>Since:</b></dt><dd>DOM Level 3 </dd></dl>
</div>
</div><p>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="DOMUserDataHandler_8hpp-source.html">DOMUserDataHandler.hpp</a></ul>
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