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| <h1 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1" class="text-break">Class AbstractDistinctValuesCollector<GC> |
| </h1> |
| <div class="markdown level0 summary"><p>A second pass grouping collector that keeps track of distinct values for a specified field for the top N group.</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"><span class="xref">AbstractDistinctValuesCollector<GC></span></div> |
| <div class="level2"><a class="xref" href="Lucene.Net.Search.Grouping.Function.FunctionDistinctValuesCollector.html">FunctionDistinctValuesCollector</a></div> |
| <div class="level2"><a class="xref" href="Lucene.Net.Search.Grouping.Terms.TermDistinctValuesCollector.html">TermDistinctValuesCollector</a></div> |
| </div> |
| <div classs="implements"> |
| <h5>Implements</h5> |
| <div><a class="xref" href="Lucene.Net.Search.Grouping.IAbstractDistinctValuesCollector-1.html">IAbstractDistinctValuesCollector</a><GC></div> |
| <div><span class="xref">Lucene.Net.Search.ICollector</span></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.Search.Grouping.html">Lucene.Net.Search.Grouping</a></h6> |
| <h6><strong>Assembly</strong>: Lucene.Net.Grouping.dll</h6> |
| <h5 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_syntax">Syntax</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public abstract class AbstractDistinctValuesCollector<GC> : IAbstractDistinctValuesCollector<GC>, ICollector where GC : AbstractDistinctValuesCollector.IGroupCount<object></code></pre> |
| </div> |
| <h5 class="typeParameters">Type Parameters</h5> |
| <table class="table table-bordered table-striped table-condensed"> |
| <thead> |
| <tr> |
| <th>Name</th> |
| <th>Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td><span class="parametername">GC</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h3 id="properties">Properties |
| </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_Search_Grouping_AbstractDistinctValuesCollector_1_AcceptsDocsOutOfOrder.md&value=---%0Auid%3A%20Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector%601.AcceptsDocsOutOfOrder%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> |
| </span> |
| <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.Grouping/AbstractDistinctValuesCollector.cs/#L39">View Source</a> |
| </span> |
| <a id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_AcceptsDocsOutOfOrder_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.AcceptsDocsOutOfOrder*"></a> |
| <h4 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_AcceptsDocsOutOfOrder" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.AcceptsDocsOutOfOrder">AcceptsDocsOutOfOrder</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 bool AcceptsDocsOutOfOrder { 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.Boolean</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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_Search_Grouping_AbstractDistinctValuesCollector_1_Groups.md&value=---%0Auid%3A%20Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector%601.Groups%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> |
| </span> |
| <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.Grouping/AbstractDistinctValuesCollector.cs/#L37">View Source</a> |
| </span> |
| <a id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Groups_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.Groups*"></a> |
| <h4 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Groups" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.Groups">Groups</h4> |
| <div class="markdown level1 summary"><p>Returns all unique values for each top N group.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public abstract IEnumerable<GC> Groups { 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.Collections.Generic.IEnumerable</span><GC></td> |
| <td><p>all unique values for each top N group</p> |
| </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_Search_Grouping_AbstractDistinctValuesCollector_1_Collect_System_Int32_.md&value=---%0Auid%3A%20Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector%601.Collect(System.Int32)%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.Grouping/AbstractDistinctValuesCollector.cs/#L61">View Source</a> |
| </span> |
| <a id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Collect_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.Collect*"></a> |
| <h4 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Collect_System_Int32_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.Collect(System.Int32)">Collect(Int32)</h4> |
| <div class="markdown level1 summary"><p>Called once for every document matching a query, with the unbased document |
| number. |
| <p>Note: The collection of the current segment can be terminated by throwing |
| a <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Search.CollectionTerminatedException.html">CollectionTerminatedException</a>. In this case, the last docs of the |
| current <span class="xref">Lucene.Net.Index.AtomicReaderContext</span> will be skipped and <span class="xref">Lucene.Net.Search.IndexSearcher</span> |
| will swallow the exception and continue collection with the next leaf. |
| <p> |
| Note: this is called in an inner search loop. For good search performance, |
| implementations of this method should not call <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Search.IndexSearcher.html#Lucene_Net_Search_IndexSearcher_Doc_System_Int32_">Doc(Int32)</a> or |
| <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Index.IndexReader.html#Lucene_Net_Index_IndexReader_Document_System_Int32_">Document(Int32)</a> on every hit. |
| Doing so can slow searches by an order of magnitude or more.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public abstract void Collect(int doc)</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.Int32</span></td> |
| <td><span class="parametername">doc</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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_Search_Grouping_AbstractDistinctValuesCollector_1_SetNextReader_Lucene_Net_Index_AtomicReaderContext_.md&value=---%0Auid%3A%20Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector%601.SetNextReader(Lucene.Net.Index.AtomicReaderContext)%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.Grouping/AbstractDistinctValuesCollector.cs/#L71">View Source</a> |
| </span> |
| <a id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_SetNextReader_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.SetNextReader*"></a> |
| <h4 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_SetNextReader_Lucene_Net_Index_AtomicReaderContext_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.SetNextReader(Lucene.Net.Index.AtomicReaderContext)">SetNextReader(AtomicReaderContext)</h4> |
| <div class="markdown level1 summary"><p>Called before collecting from each <span class="xref">Lucene.Net.Index.AtomicReaderContext</span>. All doc ids in |
| <a class="xref" href="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector-1.html#Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Collect_System_Int32_">Collect(Int32)</a> will correspond to <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Index.IndexReaderContext.html#Lucene_Net_Index_IndexReaderContext_Reader">Reader</a>.</p> |
| <p>Add <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Index.AtomicReaderContext.html#Lucene_Net_Index_AtomicReaderContext_DocBase">DocBase</a> to the current <a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Index.IndexReaderContext.html#Lucene_Net_Index_IndexReaderContext_Reader">Reader</a>'s |
| internal document id to re-base ids in <a class="xref" href="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector-1.html#Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_Collect_System_Int32_">Collect(Int32)</a>.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public abstract void SetNextReader(AtomicReaderContext context)</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.AtomicReaderContext</span></td> |
| <td><span class="parametername">context</span></td> |
| <td><p>next atomic reader context </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <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_Search_Grouping_AbstractDistinctValuesCollector_1_SetScorer_Lucene_Net_Search_Scorer_.md&value=---%0Auid%3A%20Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector%601.SetScorer(Lucene.Net.Search.Scorer)%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.Grouping/AbstractDistinctValuesCollector.cs/#L41">View Source</a> |
| </span> |
| <a id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_SetScorer_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.SetScorer*"></a> |
| <h4 id="Lucene_Net_Search_Grouping_AbstractDistinctValuesCollector_1_SetScorer_Lucene_Net_Search_Scorer_" data-uid="Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector`1.SetScorer(Lucene.Net.Search.Scorer)">SetScorer(Scorer)</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 void SetScorer(Scorer scorer)</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.Search.Scorer</span></td> |
| <td><span class="parametername">scorer</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h3 id="implements">Implements</h3> |
| <div> |
| <a class="xref" href="Lucene.Net.Search.Grouping.IAbstractDistinctValuesCollector-1.html">IAbstractDistinctValuesCollector<GC></a> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Search.ICollector</span> |
| </div> |
| </article> |
| </div> |
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