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<h1 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat" class="text-break">Class MemoryPostingsFormat
</h1>
<div class="markdown level0 summary"><p>Stores terms &amp; postings (docs, positions, payloads) in
RAM, using an FST.</p>
<p><p>Note that this codec implements advance as a linear
scan! This means if you store large fields in here,
queries that rely on advance will (AND BooleanQuery,
PhraseQuery) will be relatively slow!
</p></p>
<div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div><p>
</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">Lucene.Net.Codecs.PostingsFormat</span></div>
<div class="level2"><span class="xref">MemoryPostingsFormat</span></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<span class="xref">Lucene.Net.Codecs.PostingsFormat.EMPTY</span>
</div>
<div>
<span class="xref">Lucene.Net.Codecs.PostingsFormat.SetPostingsFormatFactory(Lucene.Net.Codecs.IPostingsFormatFactory)</span>
</div>
<div>
<span class="xref">Lucene.Net.Codecs.PostingsFormat.GetPostingsFormatFactory()</span>
</div>
<div>
<span class="xref">Lucene.Net.Codecs.PostingsFormat.Name</span>
</div>
<div>
<a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Codecs.PostingsFormat.html#Lucene_Net_Codecs_PostingsFormat_ForName_System_String_">PostingsFormat.ForName(String)</a>
</div>
<div>
<span class="xref">Lucene.Net.Codecs.PostingsFormat.AvailablePostingsFormats</span>
</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.Codecs.Memory.html">Lucene.Net.Codecs.Memory</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.Codecs.dll</h6>
<h5 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">[PostingsFormatName(&quot;Memory&quot;)]
public sealed class MemoryPostingsFormat : PostingsFormat</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
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<a id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat__ctor_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.#ctor*"></a>
<h4 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat__ctor" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.#ctor">MemoryPostingsFormat()</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 MemoryPostingsFormat()</code></pre>
</div>
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<a id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat__ctor_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.#ctor*"></a>
<h4 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat__ctor_System_Boolean_System_Single_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.#ctor(System.Boolean,System.Single)">MemoryPostingsFormat(Boolean, Single)</h4>
<div class="markdown level1 summary"><p>Create <a class="xref" href="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.html">MemoryPostingsFormat</a>, specifying advanced FST options. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public MemoryPostingsFormat(bool doPackFST, float acceptableOverheadRatio)</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.Boolean</span></td>
<td><span class="parametername">doPackFST</span></td>
<td><p><code>true</code> if a packed FST should be built.
NOTE: packed FSTs are limited to ~2.1 GB of postings. </p>
</td>
</tr>
<tr>
<td><span class="xref">System.Single</span></td>
<td><span class="parametername">acceptableOverheadRatio</span></td>
<td><p>Allowable overhead for packed <span class="xref">System.Int32</span>s
during FST construction. </p>
</td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
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<a id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_FieldsConsumer_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.FieldsConsumer*"></a>
<h4 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_FieldsConsumer_Lucene_Net_Index_SegmentWriteState_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.FieldsConsumer(Lucene.Net.Index.SegmentWriteState)">FieldsConsumer(SegmentWriteState)</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 FieldsConsumer FieldsConsumer(SegmentWriteState state)</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">Lucene.Net.Index.SegmentWriteState</span></td>
<td><span class="parametername">state</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.Codecs.FieldsConsumer</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><span class="xref">Lucene.Net.Codecs.PostingsFormat.FieldsConsumer(Lucene.Net.Index.SegmentWriteState)</span></div>
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<a id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_FieldsProducer_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.FieldsProducer*"></a>
<h4 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_FieldsProducer_Lucene_Net_Index_SegmentReadState_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.FieldsProducer(Lucene.Net.Index.SegmentReadState)">FieldsProducer(SegmentReadState)</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 FieldsProducer FieldsProducer(SegmentReadState state)</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">Lucene.Net.Index.SegmentReadState</span></td>
<td><span class="parametername">state</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.Codecs.FieldsProducer</span></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><span class="xref">Lucene.Net.Codecs.PostingsFormat.FieldsProducer(Lucene.Net.Index.SegmentReadState)</span></div>
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<a id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_ToString_" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.ToString*"></a>
<h4 id="Lucene_Net_Codecs_Memory_MemoryPostingsFormat_ToString" data-uid="Lucene.Net.Codecs.Memory.MemoryPostingsFormat.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><span class="xref">Lucene.Net.Codecs.PostingsFormat.ToString()</span></div>
</article>
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