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| Apache Lucene.NET 4.8.0-beta00010 Documentation </title>
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<article class="content wrap" id="_content" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor">
<h1 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor" class="text-break">Class QueryNodeProcessor
</h1>
<div class="markdown level0 summary"><p>This is a default implementation for the <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html">IQueryNodeProcessor</a>
interface, it&apos;s an abstract class, so it should be extended by classes that
want to process a <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a> tree.
<p>
This class process <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a>s from left to right in the tree. While
it&apos;s walking down the tree, for every node,
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PreProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_">PreProcessNode(IQueryNode)</a> is invoked. After a node&apos;s children are
processed, <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PostProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_">PostProcessNode(IQueryNode)</a> is invoked for that node.
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetChildrenOrder_System_Collections_Generic_IList_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode__">SetChildrenOrder(IList&lt;IQueryNode&gt;)</a> is invoked before
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PostProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_">PostProcessNode(IQueryNode)</a> only if the node has at least one child,
in <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetChildrenOrder_System_Collections_Generic_IList_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode__">SetChildrenOrder(IList&lt;IQueryNode&gt;)</a> the implementor might redefine the
children order or remove any children from the children list.
</p>
<p>
Here is an example about how it process the nodes:
</p></p>
<pre>
a
/ \
b e
/ \
c d
</pre>
<p><p>
Here is the order the methods would be invoked for the tree described above:
</p></p>
<pre><code> PreProcessNode( a );
PreProcessNode( b );
PreProcessNode( c );
PostProcessNode( c );
PreProcessNode( d );
PostProcessNode( d );
SetChildrenOrder( bChildrenList );
PostProcessNode( b );
PreProcessNode( e );
PostProcessNode( e );
SetChildrenOrder( aChildrenList );
PostProcessNode( a )</code></pre>
</div>
<div class="markdown level0 conceptual"></div>
<div class="inheritance">
<h5>Inheritance</h5>
<div class="level0"><span class="xref">System.Object</span></div>
<div class="level1"><span class="xref">QueryNodeProcessor</span></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.NoChildOptimizationQueryNodeProcessor.html">NoChildOptimizationQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.RemoveDeletedQueryNodesProcessor.html">RemoveDeletedQueryNodesProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Precedence.Processors.BooleanModifiersQueryNodeProcessor.html">BooleanModifiersQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.AllowLeadingWildcardProcessor.html">AllowLeadingWildcardProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.AnalyzerQueryNodeProcessor.html">AnalyzerQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.BooleanSingleChildOptimizationQueryNodeProcessor.html">BooleanSingleChildOptimizationQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.BoostQueryNodeProcessor.html">BoostQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.DefaultPhraseSlopQueryNodeProcessor.html">DefaultPhraseSlopQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.FuzzyQueryNodeProcessor.html">FuzzyQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.LowercaseExpandedTermsQueryNodeProcessor.html">LowercaseExpandedTermsQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.MatchAllDocsQueryNodeProcessor.html">MatchAllDocsQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.MultiFieldQueryNodeProcessor.html">MultiFieldQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.MultiTermRewriteMethodProcessor.html">MultiTermRewriteMethodProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.NumericQueryNodeProcessor.html">NumericQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.NumericRangeQueryNodeProcessor.html">NumericRangeQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.OpenRangeQueryNodeProcessor.html">OpenRangeQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.PhraseSlopQueryNodeProcessor.html">PhraseSlopQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.RemoveEmptyNonLeafQueryNodeProcessor.html">RemoveEmptyNonLeafQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.TermRangeQueryNodeProcessor.html">TermRangeQueryNodeProcessor</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.WildcardQueryNodeProcessor.html">WildcardQueryNodeProcessor</a></div>
</div>
<div classs="implements">
<h5>Implements</h5>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html">IQueryNodeProcessor</a></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<span class="xref">System.Object.Equals(System.Object)</span>
</div>
<div>
<span class="xref">System.Object.Equals(System.Object, System.Object)</span>
</div>
<div>
<span class="xref">System.Object.GetHashCode()</span>
</div>
<div>
<span class="xref">System.Object.GetType()</span>
</div>
<div>
<span class="xref">System.Object.MemberwiseClone()</span>
</div>
<div>
<span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span>
</div>
<div>
<span class="xref">System.Object.ToString()</span>
</div>
</div>
<h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.html">Lucene.Net.QueryParsers.Flexible.Core.Processors</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.QueryParser.dll</h6>
<h5 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public abstract class QueryNodeProcessor : IQueryNodeProcessor</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor__ctor.md&amp;value=---%0Auid%3A%20Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.%23ctor%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor__ctor_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.#ctor*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor__ctor" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.#ctor">QueryNodeProcessor()</h4>
<div class="markdown level1 summary"></div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public QueryNodeProcessor()</code></pre>
</div>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.QueryParser/Flexible/Core/Processors/QueryNodeProcessorImpl.cs/#L79">View Source</a>
</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor__ctor_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.#ctor*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor__ctor_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.#ctor(Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler)">QueryNodeProcessor(QueryConfigHandler)</h4>
<div class="markdown level1 summary"></div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public QueryNodeProcessor(QueryConfigHandler queryConfigHandler)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a></td>
<td><span class="parametername">queryConfigHandler</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_GetQueryConfigHandler.md&amp;value=---%0Auid%3A%20Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.GetQueryConfigHandler%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.QueryParser/Flexible/Core/Processors/QueryNodeProcessorImpl.cs/#L185">View Source</a>
</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_GetQueryConfigHandler_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.GetQueryConfigHandler*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_GetQueryConfigHandler" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.GetQueryConfigHandler">GetQueryConfigHandler()</h4>
<div class="markdown level1 summary"><p>For reference about this method check:
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_IQueryNodeProcessor_GetQueryConfigHandler">GetQueryConfigHandler()</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual QueryConfigHandler GetQueryConfigHandler()</code></pre>
</div>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a></td>
<td><p><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a> the query configuration handler to be set.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_GetQueryConfigHandler_seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_IQueryNodeProcessor_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_">SetQueryConfigHandler</a>(<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a>)</div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a></div>
</div>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.QueryParser/Flexible/Core/Processors/QueryNodeProcessorImpl.cs/#L204">View Source</a>
</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PostProcessNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.PostProcessNode*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PostProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.PostProcessNode(Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode)">PostProcessNode(IQueryNode)</h4>
<div class="markdown level1 summary"><p>This method is invoked for every node when walking up the tree.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected abstract IQueryNode PostProcessNode(IQueryNode node)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><span class="parametername">node</span></td>
<td><p>node the query node to be post-processed</p>
</td>
</tr>
</tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><p>a query node</p>
</td>
</tr>
</tbody>
</table>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryNodeException.html">QueryNodeException</a></td>
<td><p>if something goes wrong during the query node processing</p>
</td>
</tr>
</tbody>
</table>
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</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PreProcessNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.PreProcessNode*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PreProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.PreProcessNode(Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode)">PreProcessNode(IQueryNode)</h4>
<div class="markdown level1 summary"><p>This method is invoked for every node when walking down the tree.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected abstract IQueryNode PreProcessNode(IQueryNode node)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><span class="parametername">node</span></td>
<td><p>the query node to be pre-processed</p>
</td>
</tr>
</tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><p>a query node</p>
</td>
</tr>
</tbody>
</table>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryNodeException.html">QueryNodeException</a></td>
<td><p>if something goes wrong during the query node processing</p>
</td>
</tr>
</tbody>
</table>
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</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_Process_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.Process*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_Process_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.Process(Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode)">Process(IQueryNode)</h4>
<div class="markdown level1 summary"></div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual IQueryNode Process(IQueryNode queryTree)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><span class="parametername">queryTree</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_ProcessChildren_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_.md&amp;value=---%0Auid%3A%20Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.ProcessChildren(Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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<span class="small pull-right mobile-hide">
<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.QueryParser/Flexible/Core/Processors/QueryNodeProcessorImpl.cs/#L105">View Source</a>
</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_ProcessChildren_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.ProcessChildren*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_ProcessChildren_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.ProcessChildren(Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode)">ProcessChildren(IQueryNode)</h4>
<div class="markdown level1 summary"><p>This method is called every time a child is processed.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected virtual void ProcessChildren(IQueryNode queryTree)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a></td>
<td><span class="parametername">queryTree</span></td>
<td><p>the query node child to be processed</p>
</td>
</tr>
</tbody>
</table>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryNodeException.html">QueryNodeException</a></td>
<td><p>if something goes wrong during the query node processing</p>
</td>
</tr>
</tbody>
</table>
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<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetChildrenOrder_System_Collections_Generic_IList_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode__.md&amp;value=---%0Auid%3A%20Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.SetChildrenOrder(System.Collections.Generic.IList%7BLucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode%7D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetChildrenOrder_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.SetChildrenOrder*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetChildrenOrder_System_Collections_Generic_IList_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode__" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.SetChildrenOrder(System.Collections.Generic.IList{Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode})">SetChildrenOrder(IList&lt;IQueryNode&gt;)</h4>
<div class="markdown level1 summary"><p>This method is invoked for every node that has at least on child. It&apos;s
invoked right before <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_PostProcessNode_Lucene_Net_QueryParsers_Flexible_Core_Nodes_IQueryNode_">PostProcessNode(IQueryNode)</a> is invoked.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected abstract IList&lt;IQueryNode&gt; SetChildrenOrder(IList&lt;IQueryNode&gt; children)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.Collections.Generic.IList</span>&lt;<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a>&gt;</td>
<td><span class="parametername">children</span></td>
<td><p>the list containing all current node&apos;s children</p>
</td>
</tr>
</tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.Collections.Generic.IList</span>&lt;<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Nodes.IQueryNode.html">IQueryNode</a>&gt;</td>
<td><p>a new list containing all children that should be set to the current node</p>
</td>
</tr>
</tbody>
</table>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryNodeException.html">QueryNodeException</a></td>
<td><p>if something goes wrong during the query node processing</p>
</td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetQueryConfigHandler_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.SetQueryConfigHandler*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_" data-uid="Lucene.Net.QueryParsers.Flexible.Core.Processors.QueryNodeProcessor.SetQueryConfigHandler(Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler)">SetQueryConfigHandler(QueryConfigHandler)</h4>
<div class="markdown level1 summary"><p>For reference about this method check:
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_IQueryNodeProcessor_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_">SetQueryConfigHandler(QueryConfigHandler)</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual void SetQueryConfigHandler(QueryConfigHandler queryConfigHandler)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a></td>
<td><span class="parametername">queryConfigHandler</span></td>
<td><p>the query configuration handler to be set.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Lucene_Net_QueryParsers_Flexible_Core_Processors_QueryNodeProcessor_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler__seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html#Lucene_Net_QueryParsers_Flexible_Core_Processors_IQueryNodeProcessor_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_">SetQueryConfigHandler</a>(<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a>)</div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler.html">QueryConfigHandler</a></div>
</div>
<h3 id="implements">Implements</h3>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html">IQueryNodeProcessor</a>
</div>
<h3 id="seealso">See Also</h3>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.Processors.IQueryNodeProcessor.html">IQueryNodeProcessor</a></div>
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