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<article class="content wrap" id="_content" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy">
<h1 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy" class="text-break">Class RecursivePrefixTreeStrategy
</h1>
<div class="markdown level0 summary"><p>A <a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html">PrefixTreeStrategy</a> which uses <a class="xref" href="Lucene.Net.Spatial.Prefix.AbstractVisitingPrefixTreeFilter.html">AbstractVisitingPrefixTreeFilter</a>.
This strategy has support for searching non-point shapes (note: not tested).
Even a query shape with distErrPct=0 (fully precise to the grid) should have
good performance for typical data, unless there is a lot of indexed data
coincident with the shape&apos;s edge.</p>
<div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></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"><a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html">SpatialStrategy</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html">PrefixTreeStrategy</a></div>
<div class="level3"><span class="xref">RecursivePrefixTreeStrategy</span></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_m_grid">PrefixTreeStrategy.m_grid</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_m_simplifyIndexedCells">PrefixTreeStrategy.m_simplifyIndexedCells</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_m_defaultFieldValuesArrayLen">PrefixTreeStrategy.m_defaultFieldValuesArrayLen</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_m_distErrPct">PrefixTreeStrategy.m_distErrPct</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_DefaultFieldValuesArrayLen">PrefixTreeStrategy.DefaultFieldValuesArrayLen</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_DistErrPct">PrefixTreeStrategy.DistErrPct</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_CreateIndexableFields_Spatial4n_Core_Shapes_IShape_">PrefixTreeStrategy.CreateIndexableFields(IShape)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_CreateIndexableFields_Spatial4n_Core_Shapes_IShape_System_Double_">PrefixTreeStrategy.CreateIndexableFields(IShape, Double)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_FIELD_TYPE">PrefixTreeStrategy.FIELD_TYPE</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_MakeDistanceValueSource_Spatial4n_Core_Shapes_IPoint_System_Double_">PrefixTreeStrategy.MakeDistanceValueSource(IPoint, Double)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.Prefix.PrefixTreeStrategy.html#Lucene_Net_Spatial_Prefix_PrefixTreeStrategy_Grid">PrefixTreeStrategy.Grid</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_m_ctx">SpatialStrategy.m_ctx</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_SpatialContext">SpatialStrategy.SpatialContext</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_FieldName">SpatialStrategy.FieldName</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_MakeDistanceValueSource_Spatial4n_Core_Shapes_IPoint_">SpatialStrategy.MakeDistanceValueSource(IPoint)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_MakeQuery_Lucene_Net_Spatial_Queries_SpatialArgs_">SpatialStrategy.MakeQuery(SpatialArgs)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_MakeRecipDistanceValueSource_Spatial4n_Core_Shapes_IShape_">SpatialStrategy.MakeRecipDistanceValueSource(IShape)</a>
</div>
<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>
<h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.Spatial.Prefix.html">Lucene.Net.Spatial.Prefix</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.Spatial.dll</h6>
<h5 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class RecursivePrefixTreeStrategy : PrefixTreeStrategy</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
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<a id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy__ctor_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.#ctor*"></a>
<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy__ctor_Lucene_Net_Spatial_Prefix_Tree_SpatialPrefixTree_System_String_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.#ctor(Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTree,System.String)">RecursivePrefixTreeStrategy(SpatialPrefixTree, String)</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 RecursivePrefixTreeStrategy(SpatialPrefixTree grid, string fieldName)</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.Spatial.Prefix.Tree.SpatialPrefixTree.html">SpatialPrefixTree</a></td>
<td><span class="parametername">grid</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">fieldName</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="fields">Fields
</h3>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_m_multiOverlappingIndexedShapes.md&amp;value=---%0Auid%3A%20Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.m_multiOverlappingIndexedShapes%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>
<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_m_multiOverlappingIndexedShapes" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.m_multiOverlappingIndexedShapes">m_multiOverlappingIndexedShapes</h4>
<div class="markdown level1 summary"><p>See <a class="xref" href="Lucene.Net.Spatial.Prefix.ContainsPrefixTreeFilter.html#Lucene_Net_Spatial_Prefix_ContainsPrefixTreeFilter_m_multiOverlappingIndexedShapes">m_multiOverlappingIndexedShapes</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected bool m_multiOverlappingIndexedShapes</code></pre>
</div>
<h5 class="fieldValue">Field Value</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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_m_pointsOnly" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.m_pointsOnly">m_pointsOnly</h4>
<div class="markdown level1 summary"><p>True if only indexed points shall be supported. See <span class="xref">Lucene.Net.Spatial.Prefix.IntersectsPrefixTreeFilter.hasIndexedLeaves</span>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">protected bool m_pointsOnly</code></pre>
</div>
<h5 class="fieldValue">Field Value</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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="properties">Properties
</h3>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_PrefixGridScanLevel.md&amp;value=---%0Auid%3A%20Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.PrefixGridScanLevel%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_Spatial_Prefix_RecursivePrefixTreeStrategy_PrefixGridScanLevel_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.PrefixGridScanLevel*"></a>
<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_PrefixGridScanLevel" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.PrefixGridScanLevel">PrefixGridScanLevel</h4>
<div class="markdown level1 summary"><p>Sets the grid level [1-maxLevels] at which indexed terms are scanned brute-force
instead of by grid decomposition. By default this is maxLevels - 4. The
final level, maxLevels, is always scanned. Value can be 1 to maxLevels.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual int PrefixGridScanLevel { get; set; }</code></pre>
</div>
<h5 class="propertyValue">Property Value</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.Int32</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
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<a id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_MakeFilter_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.MakeFilter*"></a>
<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_MakeFilter_Lucene_Net_Spatial_Queries_SpatialArgs_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.MakeFilter(Lucene.Net.Spatial.Queries.SpatialArgs)">MakeFilter(SpatialArgs)</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 override Filter MakeFilter(SpatialArgs args)</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.Spatial.Queries.SpatialArgs.html">SpatialArgs</a></td>
<td><span class="parametername">args</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><span class="xref">Lucene.Net.Search.Filter</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_MakeFilter_Lucene_Net_Spatial_Queries_SpatialArgs_">SpatialStrategy.MakeFilter(SpatialArgs)</a></div>
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<a id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_ToString_" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.ToString*"></a>
<h4 id="Lucene_Net_Spatial_Prefix_RecursivePrefixTreeStrategy_ToString" data-uid="Lucene.Net.Spatial.Prefix.RecursivePrefixTreeStrategy.ToString">ToString()</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 override string ToString()</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><span class="xref">System.String</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Spatial.SpatialStrategy.html#Lucene_Net_Spatial_SpatialStrategy_ToString">SpatialStrategy.ToString()</a></div>
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