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<div id="projectname">ICU 49.1.1
 <span id="projectnumber">49.1.1</span>
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<li class="navelem"><a class="el" href="classStringTrieBuilder.html">StringTrieBuilder</a></li><li class="navelem"><a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a></li> </ul>
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<div class="title">StringTrieBuilder::Node Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<p><code>#include <<a class="el" href="stringtriebuilder_8h_source.html">stringtriebuilder.h</a>></code></p>
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Inheritance diagram for StringTrieBuilder::Node:</div>
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<img src="classStringTrieBuilder_1_1Node.png" usemap="#StringTrieBuilder::Node_map" alt=""/>
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<area href="classUMemory.html" title="UMemory is the common ICU base class." alt="UMemory" shape="rect" coords="381,0,625,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:adccd346893ef1b72e5847f988bdc885f"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adccd346893ef1b72e5847f988bdc885f"></a>
 </td><td class="memItemRight" valign="bottom"><b>Node</b> (int32_t initialHash)</td></tr>
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<tr class="memitem:ad039a9ade764d8b128c2f8e75254f2ec"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad039a9ade764d8b128c2f8e75254f2ec"></a>
int32_t </td><td class="memItemRight" valign="bottom"><b>hashCode</b> () const </td></tr>
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<tr class="memitem:a1797222a8ea26494b314733a140c38fe"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1797222a8ea26494b314733a140c38fe"></a>
virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><b>operator==</b> (const <a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a> &other) const </td></tr>
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<tr class="memitem:aa6a49f2817ebeeb4d256fce177f1a27a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa6a49f2817ebeeb4d256fce177f1a27a"></a>
<a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><b>operator!=</b> (const <a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a> &other) const </td></tr>
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<tr class="memitem:af78a4a35580b5b6790bb36aaf3d5dcb4"><td class="memItemLeft" align="right" valign="top">virtual int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringTrieBuilder_1_1Node.html#af78a4a35580b5b6790bb36aaf3d5dcb4">markRightEdgesFirst</a> (int32_t edgeNumber)</td></tr>
<tr class="memdesc:af78a4a35580b5b6790bb36aaf3d5dcb4"><td class="mdescLeft"> </td><td class="mdescRight">Traverses the <a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a> graph and numbers branch edges, with rightmost edges first. <a href="#af78a4a35580b5b6790bb36aaf3d5dcb4">More...</a><br/></td></tr>
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virtual void </td><td class="memItemRight" valign="bottom"><b>write</b> (<a class="el" href="classStringTrieBuilder.html">StringTrieBuilder</a> &builder)=0</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>writeUnlessInsideRightEdge</b> (int32_t firstRight, int32_t lastRight, <a class="el" href="classStringTrieBuilder.html">StringTrieBuilder</a> &builder)</td></tr>
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int32_t </td><td class="memItemRight" valign="bottom"><b>getOffset</b> () const </td></tr>
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<tr class="inherit_header pub_methods_classUObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classUObject')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classUObject.html">UObject</a></td></tr>
<tr class="memitem:ace22cf29a90641ef43350deae5bedb85 inherit pub_methods_classUObject"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classUObject.html#ace22cf29a90641ef43350deae5bedb85">~UObject</a> ()</td></tr>
<tr class="memdesc:ace22cf29a90641ef43350deae5bedb85 inherit pub_methods_classUObject"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#ace22cf29a90641ef43350deae5bedb85">More...</a><br/></td></tr>
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Static Public Member Functions</h2></td></tr>
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static int32_t </td><td class="memItemRight" valign="bottom"><b>hashCode</b> (const <a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a> *node)</td></tr>
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Protected Attributes</h2></td></tr>
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int32_t </td><td class="memItemRight" valign="bottom"><b>hash</b></td></tr>
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int32_t </td><td class="memItemRight" valign="bottom"><b>offset</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><dl class="internal"><dt><b><a class="el" href="internal.html#_internal000122">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. </dd></dl>
<p>Definition at line <a class="el" href="stringtriebuilder_8h_source.html#l00182">182</a> of file <a class="el" href="stringtriebuilder_8h_source.html">stringtriebuilder.h</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">virtual int32_t StringTrieBuilder::Node::markRightEdgesFirst </td>
<td>(</td>
<td class="paramtype">int32_t </td>
<td class="paramname"><em>edgeNumber</em></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Traverses the <a class="el" href="classStringTrieBuilder_1_1Node.html">Node</a> graph and numbers branch edges, with rightmost edges first. </p>
<p>This is to avoid writing a duplicate node twice.</p>
<p>Branch nodes in this trie data structure are not symmetric. Most branch edges "jump" to other nodes but the rightmost branch edges just continue without a jump. Therefore, write() must write the rightmost branch edge last (trie units are written backwards), and must write it at that point even if it is a duplicate of a node previously written elsewhere.</p>
<p>This function visits and marks right branch edges first. Edges are numbered with increasingly negative values because we share the offset field which gets positive values when nodes are written. A branch edge also remembers the first number for any of its edges.</p>
<p>When a further-left branch edge has a number in the range of the rightmost edge's numbers, then it will be written as part of the required right edge and we can avoid writing it first.</p>
<p>After root.markRightEdgesFirst(-1) the offsets of all nodes are negative edge numbers.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">edgeNumber</td><td>The first edge number for this node and its sub-nodes. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>An edge number that is at least the maximum-negative of the input edge number and the numbers of this node and all of its sub-nodes. </dd></dl>
<p>Reimplemented in <a class="el" href="classStringTrieBuilder_1_1BranchHeadNode.html#addd8d30c2a635558d6f61a09c22b7fa0">StringTrieBuilder::BranchHeadNode</a>, <a class="el" href="classStringTrieBuilder_1_1SplitBranchNode.html#ab50502af618b9c48d0021c979c542225">StringTrieBuilder::SplitBranchNode</a>, <a class="el" href="classStringTrieBuilder_1_1ListBranchNode.html#aadb843d80c7f0587e961b68539c91fb1">StringTrieBuilder::ListBranchNode</a>, <a class="el" href="classStringTrieBuilder_1_1LinearMatchNode.html#a7822a1fb7a78782fe5ae8309d14b9fe2">StringTrieBuilder::LinearMatchNode</a>, and <a class="el" href="classStringTrieBuilder_1_1IntermediateValueNode.html#a3223e369a9b334d636924ae4e44ba6f9">StringTrieBuilder::IntermediateValueNode</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="stringtriebuilder_8h_source.html">stringtriebuilder.h</a></li>
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