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<article class="content wrap" id="_content" data-uid="Lucene.Net.Index.MultiFields">
<h1 id="Lucene_Net_Index_MultiFields" data-uid="Lucene.Net.Index.MultiFields" class="text-break">Class MultiFields
</h1>
<div class="markdown level0 summary"><p>Exposes flex API, merged from flex API of sub-segments.
This is useful when you&apos;re interacting with an
<a class="xref" href="Lucene.Net.Index.IndexReader.html">IndexReader</a> implementation that consists of sequential
sub-readers (eg <a class="xref" href="Lucene.Net.Index.DirectoryReader.html">DirectoryReader</a> or
<a class="xref" href="Lucene.Net.Index.MultiReader.html">MultiReader</a>).</p>
<p><p><strong>NOTE</strong>: for composite readers, you&apos;ll get better
performance by gathering the sub readers using
<a class="xref" href="Lucene.Net.Index.IndexReader.html#Lucene_Net_Index_IndexReader_Context">Context</a> to get the
atomic leaves and then operate per-AtomicReader,
instead of using this class.
<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.Index.Fields.html">Fields</a></div>
<div class="level2"><span class="xref">MultiFields</span></div>
</div>
<div classs="implements">
<h5>Implements</h5>
<div><span class="xref">System.Collections.Generic.IEnumerable</span>&lt;<span class="xref">System.String</span>&gt;</div>
<div><span class="xref">System.Collections.IEnumerable</span></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_System_Collections_IEnumerable_GetEnumerator">Fields.IEnumerable.GetEnumerator()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_UniqueTermCount">Fields.UniqueTermCount</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_EMPTY_ARRAY">Fields.EMPTY_ARRAY</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>
<span class="xref">System.Object.ToString()</span>
</div>
</div>
<h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.Index.html">Lucene.Net.Index</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.dll</h6>
<h5 id="Lucene_Net_Index_MultiFields_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public sealed class MultiFields : Fields, IEnumerable&lt;string&gt;, IEnumerable</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-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields__ctor_Lucene_Net_Index_Fields___Lucene_Net_Index_ReaderSlice___.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.%23ctor(Lucene.Net.Index.Fields%5B%5D%2CLucene.Net.Index.ReaderSlice%5B%5D)%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 id="Lucene_Net_Index_MultiFields__ctor_" data-uid="Lucene.Net.Index.MultiFields.#ctor*"></a>
<h4 id="Lucene_Net_Index_MultiFields__ctor_Lucene_Net_Index_Fields___Lucene_Net_Index_ReaderSlice___" data-uid="Lucene.Net.Index.MultiFields.#ctor(Lucene.Net.Index.Fields[],Lucene.Net.Index.ReaderSlice[])">MultiFields(Fields[], ReaderSlice[])</h4>
<div class="markdown level1 summary"><p>Expert: construct a new <a class="xref" href="Lucene.Net.Index.MultiFields.html">MultiFields</a> instance directly.
<p>
<div class="lucene-block lucene-internal">This is a Lucene.NET INTERNAL API, use at your own risk</div></div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public MultiFields(Fields[] subs, ReaderSlice[] subSlices)</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.Index.Fields.html">Fields</a>[]</td>
<td><span class="parametername">subs</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Index.ReaderSlice.html">ReaderSlice</a>[]</td>
<td><span class="parametername">subSlices</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="properties">Properties
</h3>
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<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_Count.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.Count%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 id="Lucene_Net_Index_MultiFields_Count_" data-uid="Lucene.Net.Index.MultiFields.Count*"></a>
<h4 id="Lucene_Net_Index_MultiFields_Count" data-uid="Lucene.Net.Index.MultiFields.Count">Count</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 int Count { get; }</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>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_Count">Fields.Count</a></div>
<h3 id="methods">Methods
</h3>
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<a id="Lucene_Net_Index_MultiFields_GetEnumerator_" data-uid="Lucene.Net.Index.MultiFields.GetEnumerator*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetEnumerator" data-uid="Lucene.Net.Index.MultiFields.GetEnumerator">GetEnumerator()</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 IEnumerator&lt;string&gt; GetEnumerator()</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.Collections.Generic.IEnumerator</span>&lt;<span class="xref">System.String</span>&gt;</td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_GetEnumerator">Fields.GetEnumerator()</a></div>
<span class="small pull-right mobile-hide">
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetFields_Lucene_Net_Index_IndexReader_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetFields(Lucene.Net.Index.IndexReader)%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 id="Lucene_Net_Index_MultiFields_GetFields_" data-uid="Lucene.Net.Index.MultiFields.GetFields*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetFields_Lucene_Net_Index_IndexReader_" data-uid="Lucene.Net.Index.MultiFields.GetFields(Lucene.Net.Index.IndexReader)">GetFields(IndexReader)</h4>
<div class="markdown level1 summary"><p>Returns a single <a class="xref" href="Lucene.Net.Index.Fields.html">Fields</a> instance for this
reader, merging fields/terms/docs/positions on the
fly. This method will return <code>null</code> if the reader
has no postings.</p>
<p><p><strong>NOTE</strong>: this is a slow way to access postings.
It&apos;s better to get the sub-readers and iterate through them
yourself.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Fields GetFields(IndexReader reader)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">reader</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.Index.Fields.html">Fields</a></td>
<td></td>
</tr>
</tbody>
</table>
<span class="small pull-right mobile-hide">
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetIndexedFields_Lucene_Net_Index_IndexReader_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetIndexedFields(Lucene.Net.Index.IndexReader)%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 id="Lucene_Net_Index_MultiFields_GetIndexedFields_" data-uid="Lucene.Net.Index.MultiFields.GetIndexedFields*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetIndexedFields_Lucene_Net_Index_IndexReader_" data-uid="Lucene.Net.Index.MultiFields.GetIndexedFields(Lucene.Net.Index.IndexReader)">GetIndexedFields(IndexReader)</h4>
<div class="markdown level1 summary"><p>Call this to get the (merged) <a class="xref" href="Lucene.Net.Index.FieldInfos.html">FieldInfos</a> representing the
set of indexed fields <strong>only</strong> for a composite reader.
<p>
NOTE: the returned field numbers will likely not
correspond to the actual field numbers in the underlying
readers, and codec metadata (<a class="xref" href="Lucene.Net.Index.FieldInfo.html#Lucene_Net_Index_FieldInfo_GetAttribute_System_String_">GetAttribute(String)</a>)
will be unavailable.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static ICollection&lt;string&gt; GetIndexedFields(IndexReader reader)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">reader</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">System.Collections.Generic.ICollection</span>&lt;<span class="xref">System.String</span>&gt;</td>
<td></td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_Index_MultiFields_GetLiveDocs_" data-uid="Lucene.Net.Index.MultiFields.GetLiveDocs*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetLiveDocs_Lucene_Net_Index_IndexReader_" data-uid="Lucene.Net.Index.MultiFields.GetLiveDocs(Lucene.Net.Index.IndexReader)">GetLiveDocs(IndexReader)</h4>
<div class="markdown level1 summary"><p>Returns a single <a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a> instance for this
reader, merging live Documents on the
fly. This method will return <code>null</code> if the reader
has no deletions.</p>
<p><p><strong>NOTE</strong>: this is a very slow way to access live docs.
For example, each <a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a> access will require a binary search.
It&apos;s better to get the sub-readers and iterate through them
yourself.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IBits GetLiveDocs(IndexReader reader)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">reader</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.Util.IBits.html">IBits</a></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_Index_MultiFields_GetMergedFieldInfos_Lucene_Net_Index_IndexReader_" data-uid="Lucene.Net.Index.MultiFields.GetMergedFieldInfos(Lucene.Net.Index.IndexReader)">GetMergedFieldInfos(IndexReader)</h4>
<div class="markdown level1 summary"><p>Call this to get the (merged) <a class="xref" href="Lucene.Net.Index.FieldInfos.html">FieldInfos</a> for a
composite reader.
<p>
NOTE: the returned field numbers will likely not
correspond to the actual field numbers in the underlying
readers, and codec metadata (<a class="xref" href="Lucene.Net.Index.FieldInfo.html#Lucene_Net_Index_FieldInfo_GetAttribute_System_String_">GetAttribute(String)</a>)
will be unavailable.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static FieldInfos GetMergedFieldInfos(IndexReader reader)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">reader</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.Index.FieldInfos.html">FieldInfos</a></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTermDocsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTermDocsEnum(Lucene.Net.Index.IndexReader%2CLucene.Net.Util.IBits%2CSystem.String%2CLucene.Net.Util.BytesRef)%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 id="Lucene_Net_Index_MultiFields_GetTermDocsEnum_" data-uid="Lucene.Net.Index.MultiFields.GetTermDocsEnum*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTermDocsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Index.MultiFields.GetTermDocsEnum(Lucene.Net.Index.IndexReader,Lucene.Net.Util.IBits,System.String,Lucene.Net.Util.BytesRef)">GetTermDocsEnum(IndexReader, IBits, String, BytesRef)</h4>
<div class="markdown level1 summary"><p>Returns <a class="xref" href="Lucene.Net.Index.DocsEnum.html">DocsEnum</a> for the specified field &amp;
term. This will return <code>null</code> if the field or term does
not exist.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static DocsEnum GetTermDocsEnum(IndexReader r, IBits liveDocs, string field, BytesRef term)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">r</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a></td>
<td><span class="parametername">liveDocs</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">field</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td>
<td><span class="parametername">term</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.Index.DocsEnum.html">DocsEnum</a></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTermDocsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_Lucene_Net_Index_DocsFlags_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTermDocsEnum(Lucene.Net.Index.IndexReader%2CLucene.Net.Util.IBits%2CSystem.String%2CLucene.Net.Util.BytesRef%2CLucene.Net.Index.DocsFlags)%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 id="Lucene_Net_Index_MultiFields_GetTermDocsEnum_" data-uid="Lucene.Net.Index.MultiFields.GetTermDocsEnum*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTermDocsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_Lucene_Net_Index_DocsFlags_" data-uid="Lucene.Net.Index.MultiFields.GetTermDocsEnum(Lucene.Net.Index.IndexReader,Lucene.Net.Util.IBits,System.String,Lucene.Net.Util.BytesRef,Lucene.Net.Index.DocsFlags)">GetTermDocsEnum(IndexReader, IBits, String, BytesRef, DocsFlags)</h4>
<div class="markdown level1 summary"><p>Returns <a class="xref" href="Lucene.Net.Index.DocsEnum.html">DocsEnum</a> for the specified field &amp;
term, with control over whether freqs are required.
Some codecs may be able to optimize their
implementation when freqs are not required. This will
return <code>null</code> if the field or term does not exist. See
<a class="xref" href="Lucene.Net.Index.TermsEnum.html#Lucene_Net_Index_TermsEnum_Docs_Lucene_Net_Util_IBits_Lucene_Net_Index_DocsEnum_Lucene_Net_Index_DocsFlags_">Docs(IBits, DocsEnum, DocsFlags)</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static DocsEnum GetTermDocsEnum(IndexReader r, IBits liveDocs, string field, BytesRef term, DocsFlags flags)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">r</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a></td>
<td><span class="parametername">liveDocs</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">field</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td>
<td><span class="parametername">term</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Index.DocsFlags.html">DocsFlags</a></td>
<td><span class="parametername">flags</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.Index.DocsEnum.html">DocsEnum</a></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTermPositionsEnum(Lucene.Net.Index.IndexReader%2CLucene.Net.Util.IBits%2CSystem.String%2CLucene.Net.Util.BytesRef)%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 id="Lucene_Net_Index_MultiFields_GetTermPositionsEnum_" data-uid="Lucene.Net.Index.MultiFields.GetTermPositionsEnum*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Index.MultiFields.GetTermPositionsEnum(Lucene.Net.Index.IndexReader,Lucene.Net.Util.IBits,System.String,Lucene.Net.Util.BytesRef)">GetTermPositionsEnum(IndexReader, IBits, String, BytesRef)</h4>
<div class="markdown level1 summary"><p>Returns <a class="xref" href="Lucene.Net.Index.DocsAndPositionsEnum.html">DocsAndPositionsEnum</a> for the specified
field &amp; term. This will return <code>null</code> if the field or
term does not exist or positions were not indexed. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static DocsAndPositionsEnum GetTermPositionsEnum(IndexReader r, IBits liveDocs, string field, BytesRef term)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">r</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a></td>
<td><span class="parametername">liveDocs</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">field</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td>
<td><span class="parametername">term</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.Index.DocsAndPositionsEnum.html">DocsAndPositionsEnum</a></td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef__seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.Index.MultiFields.html#Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_Lucene_Net_Index_DocsAndPositionsFlags_">GetTermPositionsEnum(IndexReader, IBits, String, BytesRef, DocsAndPositionsFlags)</a></div>
</div>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_Lucene_Net_Index_DocsAndPositionsFlags_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTermPositionsEnum(Lucene.Net.Index.IndexReader%2CLucene.Net.Util.IBits%2CSystem.String%2CLucene.Net.Util.BytesRef%2CLucene.Net.Index.DocsAndPositionsFlags)%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_Index_MultiFields_GetTermPositionsEnum_" data-uid="Lucene.Net.Index.MultiFields.GetTermPositionsEnum*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTermPositionsEnum_Lucene_Net_Index_IndexReader_Lucene_Net_Util_IBits_System_String_Lucene_Net_Util_BytesRef_Lucene_Net_Index_DocsAndPositionsFlags_" data-uid="Lucene.Net.Index.MultiFields.GetTermPositionsEnum(Lucene.Net.Index.IndexReader,Lucene.Net.Util.IBits,System.String,Lucene.Net.Util.BytesRef,Lucene.Net.Index.DocsAndPositionsFlags)">GetTermPositionsEnum(IndexReader, IBits, String, BytesRef, DocsAndPositionsFlags)</h4>
<div class="markdown level1 summary"><p>Returns <a class="xref" href="Lucene.Net.Index.DocsAndPositionsEnum.html">DocsAndPositionsEnum</a> for the specified
field &amp; term, with control over whether offsets and payloads are
required. Some codecs may be able to optimize
their implementation when offsets and/or payloads are not
required. This will return <code>null</code> if the field or term does not
exist or positions were not indexed. See
<a class="xref" href="Lucene.Net.Index.TermsEnum.html#Lucene_Net_Index_TermsEnum_DocsAndPositions_Lucene_Net_Util_IBits_Lucene_Net_Index_DocsAndPositionsEnum_Lucene_Net_Index_DocsAndPositionsFlags_">DocsAndPositions(IBits, DocsAndPositionsEnum, DocsAndPositionsFlags)</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static DocsAndPositionsEnum GetTermPositionsEnum(IndexReader r, IBits liveDocs, string field, BytesRef term, DocsAndPositionsFlags flags)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">r</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.IBits.html">IBits</a></td>
<td><span class="parametername">liveDocs</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">field</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td>
<td><span class="parametername">term</span></td>
<td></td>
</tr>
<tr>
<td><a class="xref" href="Lucene.Net.Index.DocsAndPositionsFlags.html">DocsAndPositionsFlags</a></td>
<td><span class="parametername">flags</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.Index.DocsAndPositionsEnum.html">DocsAndPositionsEnum</a></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTerms_Lucene_Net_Index_IndexReader_System_String_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTerms(Lucene.Net.Index.IndexReader%2CSystem.String)%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 id="Lucene_Net_Index_MultiFields_GetTerms_" data-uid="Lucene.Net.Index.MultiFields.GetTerms*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTerms_Lucene_Net_Index_IndexReader_System_String_" data-uid="Lucene.Net.Index.MultiFields.GetTerms(Lucene.Net.Index.IndexReader,System.String)">GetTerms(IndexReader, String)</h4>
<div class="markdown level1 summary"><p>this method may return <code>null</code> if the field does not exist. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Terms GetTerms(IndexReader r, string field)</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.Index.IndexReader.html">IndexReader</a></td>
<td><span class="parametername">r</span></td>
<td></td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">field</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.Index.Terms.html">Terms</a></td>
<td></td>
</tr>
</tbody>
</table>
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<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00013/websites/apidocs/apiSpec/new?filename=Lucene_Net_Index_MultiFields_GetTerms_System_String_.md&amp;value=---%0Auid%3A%20Lucene.Net.Index.MultiFields.GetTerms(System.String)%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 id="Lucene_Net_Index_MultiFields_GetTerms_" data-uid="Lucene.Net.Index.MultiFields.GetTerms*"></a>
<h4 id="Lucene_Net_Index_MultiFields_GetTerms_System_String_" data-uid="Lucene.Net.Index.MultiFields.GetTerms(System.String)">GetTerms(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 override Terms GetTerms(string field)</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.String</span></td>
<td><span class="parametername">field</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.Index.Terms.html">Terms</a></td>
<td></td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="Lucene.Net.Index.Fields.html#Lucene_Net_Index_Fields_GetTerms_System_String_">Fields.GetTerms(String)</a></div>
<h3 id="implements">Implements</h3>
<div>
<span class="xref">System.Collections.Generic.IEnumerable&lt;T&gt;</span>
</div>
<div>
<span class="xref">System.Collections.IEnumerable</span>
</div>
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