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| <title>Class FunctionQuery |
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| <h1 id="Lucene_Net_Queries_Function_FunctionQuery" data-uid="Lucene.Net.Queries.Function.FunctionQuery" class="text-break">Class FunctionQuery |
| </h1> |
| <div class="markdown level0 summary"><p>Returns a score for each document based on a <a class="xref" href="Lucene.Net.Queries.Function.ValueSource.html">ValueSource</a>, |
| often some function of the value of a field.</p> |
| <p><strong>Note: This API is experimental and may change in non backward-compatible ways in the future</strong></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.Search.Query</span></div> |
| <div class="level2"><span class="xref">FunctionQuery</span></div> |
| </div> |
| <div class="inheritedMembers"> |
| <h5>Inherited Members</h5> |
| <div> |
| <span class="xref">Lucene.Net.Search.Query.Boost</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Search.Query.ToString()</span> |
| </div> |
| <div> |
| <span class="xref">Lucene.Net.Search.Query.Clone()</span> |
| </div> |
| <div> |
| <span class="xref">System.Object.Equals(System.Object, System.Object)</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.Queries.Function.html">Lucene.Net.Queries.Function</a></h6> |
| <h6><strong>Assembly</strong>: Lucene.Net.Queries.dll</h6> |
| <h5 id="Lucene_Net_Queries_Function_FunctionQuery_syntax">Syntax</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public class FunctionQuery : Query</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_Queries_Function_FunctionQuery__ctor_Lucene_Net_Queries_Function_ValueSource_.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.%23ctor(Lucene.Net.Queries.Function.ValueSource)%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.Queries/Function/FunctionQuery.cs/#L38">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery__ctor_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.#ctor*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery__ctor_Lucene_Net_Queries_Function_ValueSource_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.#ctor(Lucene.Net.Queries.Function.ValueSource)">FunctionQuery(ValueSource)</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 FunctionQuery(ValueSource func)</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.Queries.Function.ValueSource.html">ValueSource</a></td> |
| <td><span class="parametername">func</span></td> |
| <td><p>defines the function to be used for scoring </p> |
| </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_Queries_Function_FunctionQuery_ValueSource.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.ValueSource%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.Queries/Function/FunctionQuery.cs/#L44">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_ValueSource_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ValueSource*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_ValueSource" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ValueSource">ValueSource</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 ValueSource ValueSource { 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><a class="xref" href="Lucene.Net.Queries.Function.ValueSource.html">ValueSource</a></td> |
| <td><p>The associated <a class="xref" href="Lucene.Net.Queries.Function.ValueSource.html">ValueSource</a> </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_Queries_Function_FunctionQuery_CreateWeight_Lucene_Net_Search_IndexSearcher_.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.CreateWeight(Lucene.Net.Search.IndexSearcher)%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> |
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| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_CreateWeight_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.CreateWeight*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_CreateWeight_Lucene_Net_Search_IndexSearcher_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.CreateWeight(Lucene.Net.Search.IndexSearcher)">CreateWeight(IndexSearcher)</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 Weight CreateWeight(IndexSearcher searcher)</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.IndexSearcher</span></td> |
| <td><span class="parametername">searcher</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.Weight</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><span class="xref">Lucene.Net.Search.Query.CreateWeight(Lucene.Net.Search.IndexSearcher)</span></div> |
| <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_Queries_Function_FunctionQuery_Equals_System_Object_.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.Equals(System.Object)%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.Queries/Function/FunctionQuery.cs/#L200">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_Equals_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.Equals*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_Equals_System_Object_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.Equals(System.Object)">Equals(Object)</h4> |
| <div class="markdown level1 summary"><p>Returns true if <code data-dev-comment-type="paramref" class="paramref">o</code> is equal to this.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public override bool Equals(object o)</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.Object</span></td> |
| <td><span class="parametername">o</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.Boolean</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_Equals_System_Object_">Query.Equals(Object)</a></div> |
| <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_Queries_Function_FunctionQuery_ExtractTerms_System_Collections_Generic_ISet_Lucene_Net_Index_Term__.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.ExtractTerms(System.Collections.Generic.ISet%7BLucene.Net.Index.Term%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> |
| </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.Queries/Function/FunctionQuery.cs/#L51">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_ExtractTerms_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ExtractTerms*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_ExtractTerms_System_Collections_Generic_ISet_Lucene_Net_Index_Term__" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ExtractTerms(System.Collections.Generic.ISet{Lucene.Net.Index.Term})">ExtractTerms(ISet<Term>)</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 void ExtractTerms(ISet<Term> terms)</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.ISet</span><<span class="xref">Lucene.Net.Index.Term</span>></td> |
| <td><span class="parametername">terms</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_ExtractTerms_System_Collections_Generic_ISet_Lucene_Net_Index_Term__">Query.ExtractTerms(ISet<Term>)</a></div> |
| <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_Queries_Function_FunctionQuery_GetHashCode.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.GetHashCode%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> |
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| <a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.Queries/Function/FunctionQuery.cs/#L214">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_GetHashCode_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.GetHashCode*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_GetHashCode" data-uid="Lucene.Net.Queries.Function.FunctionQuery.GetHashCode">GetHashCode()</h4> |
| <div class="markdown level1 summary"><p>Returns a hash code value for this object.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public override int GetHashCode()</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.Int32</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><span class="xref">Lucene.Net.Search.Query.GetHashCode()</span></div> |
| <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_Queries_Function_FunctionQuery_Rewrite_Lucene_Net_Index_IndexReader_.md&value=---%0Auid%3A%20Lucene.Net.Queries.Function.FunctionQuery.Rewrite(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 href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.Queries/Function/FunctionQuery.cs/#L46">View Source</a> |
| </span> |
| <a id="Lucene_Net_Queries_Function_FunctionQuery_Rewrite_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.Rewrite*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_Rewrite_Lucene_Net_Index_IndexReader_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.Rewrite(Lucene.Net.Index.IndexReader)">Rewrite(IndexReader)</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 Query Rewrite(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><span class="xref">Lucene.Net.Index.IndexReader</span></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">Lucene.Net.Search.Query</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><span class="xref">Lucene.Net.Search.Query.Rewrite(Lucene.Net.Index.IndexReader)</span></div> |
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| <span class="divider">|</span> |
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| <a id="Lucene_Net_Queries_Function_FunctionQuery_ToString_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ToString*"></a> |
| <h4 id="Lucene_Net_Queries_Function_FunctionQuery_ToString_System_String_" data-uid="Lucene.Net.Queries.Function.FunctionQuery.ToString(System.String)">ToString(String)</h4> |
| <div class="markdown level1 summary"><p>Prints a user-readable version of this query.</p> |
| </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(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><span class="xref">System.String</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 class="overrides">Overrides</h5> |
| <div><a class="xref" href="http://localhost:8080/api/core/Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_ToString_System_String_">Query.ToString(String)</a></div> |
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