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| Apache Lucene.NET 4.8.0-beta00013 Documentation </title>
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<article class="content wrap" id="_content" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser">
<h1 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser" class="text-break">Class StandardQueryParser
</h1>
<div class="markdown level0 summary"><p>This class is a helper that enables users to easily use the Lucene query
parser.
<p>
To construct a Query object from a query string, use the
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.html#Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Parse_System_String_System_String_">Parse(String, String)</a> method:</p>
<pre><code>StandardQueryParser queryParserHelper = new StandardQueryParser();
Query query = queryParserHelper.Parse(&quot;a AND b&quot;, &quot;defaultField&quot;);</code></pre>
<p>
To change any configuration before parsing the query string do, for example:
<pre><code>// the query config handler returned by StandardQueryParser is a
// StandardQueryConfigHandler
queryParserHelper.QueryConfigHandler.Analyzer = new WhitespaceAnalyzer();</code></pre>
<p>
The syntax for query strings is as follows (copied from the old QueryParser
javadoc):
<p>
A Query is a series of clauses. A clause may be prefixed by:
<ul><li>
a plus (<code>+</code>) or a minus (<code>-</code>) sign, indicating that
the clause is required or prohibited respectively; or
</li><li>
a term followed by a colon, indicating the field to be searched. This
enables one to construct queries which search multiple fields.
</li></ul>
A clause may be either:
<ul><li>
a term, indicating all the documents that contain this term; or
</li><li>
a nested query, enclosed in parentheses. Note that this may be used with
a <code>+</code>/<code>-</code> prefix to require any of a set of terms.
</li></ul>
Thus, in BNF, the query grammar is:
<pre><code> Query ::= ( Clause )*
Clause ::= [&quot;+&quot;, &quot;-&quot;] [&lt;TERM> &quot;:&quot;] ( &lt;TERM> | &quot;(&quot; Query &quot;)&quot; )</code></pre>
<p>
Examples of appropriately formatted queries can be found in the query syntax documentation.
</p>
<p>
The text parser used by this helper is a <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Parser.StandardSyntaxParser.html">StandardSyntaxParser</a>.
</p>
<p>
The query node processor used by this helper is a
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.StandardQueryNodeProcessorPipeline.html">StandardQueryNodeProcessorPipeline</a>.
</p>
<p>
The builder used by this helper is a <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Builders.StandardQueryTreeBuilder.html">StandardQueryTreeBuilder</a>.
</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"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html">QueryParserHelper</a>&lt;<span class="xref">Lucene.Net.Search.Query</span>&gt;</div>
<div class="level2"><span class="xref">StandardQueryParser</span></div>
<div class="level3"><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Precedence.PrecedenceQueryParser.html">PrecedenceQueryParser</a></div>
</div>
<div classs="implements">
<h5>Implements</h5>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.ICommonQueryParserConfiguration.html">ICommonQueryParserConfiguration</a></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_QueryNodeProcessor">QueryParserHelper&lt;Query&gt;.QueryNodeProcessor</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_SetQueryNodeProcessor_Lucene_Net_QueryParsers_Flexible_Core_Processors_IQueryNodeProcessor_">QueryParserHelper&lt;Query&gt;.SetQueryNodeProcessor(IQueryNodeProcessor)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_SetSyntaxParser_Lucene_Net_QueryParsers_Flexible_Core_Parser_ISyntaxParser_">QueryParserHelper&lt;Query&gt;.SetSyntaxParser(ISyntaxParser)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_SetQueryBuilder_Lucene_Net_QueryParsers_Flexible_Core_Builders_IQueryBuilder__0__">QueryParserHelper&lt;Query&gt;.SetQueryBuilder(IQueryBuilder&lt;Query&gt;)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_QueryConfigHandler">QueryParserHelper&lt;Query&gt;.QueryConfigHandler</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_QueryBuilder">QueryParserHelper&lt;Query&gt;.QueryBuilder</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_SyntaxParser">QueryParserHelper&lt;Query&gt;.SyntaxParser</a>
</div>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_SetQueryConfigHandler_Lucene_Net_QueryParsers_Flexible_Core_Config_QueryConfigHandler_">QueryParserHelper&lt;Query&gt;.SetQueryConfigHandler(QueryConfigHandler)</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.QueryParsers.Flexible.Standard.html">Lucene.Net.QueryParsers.Flexible.Standard</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.QueryParser.dll</h6>
<h5 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class StandardQueryParser : QueryParserHelper&lt;Query&gt;, ICommonQueryParserConfiguration</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser__ctor" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.#ctor">StandardQueryParser()</h4>
<div class="markdown level1 summary"><p>Constructs a <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.html">StandardQueryParser</a> object.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public StandardQueryParser()</code></pre>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser__ctor_Lucene_Net_Analysis_Analyzer_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.#ctor(Lucene.Net.Analysis.Analyzer)">StandardQueryParser(Analyzer)</h4>
<div class="markdown level1 summary"><p>Constructs a <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.html">StandardQueryParser</a> object and sets an
<span class="xref">Lucene.Net.Analysis.Analyzer</span> to it. The same as:</p>
<pre><code>StandardQueryParser qp = new StandardQueryParser();
qp.QueryConfigHandler.Analyzer = analyzer;</code></pre>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public StandardQueryParser(Analyzer analyzer)</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.Analysis.Analyzer</span></td>
<td><span class="parametername">analyzer</span></td>
<td><p>the analyzer to be used by this query parser helper</p>
</td>
</tr>
</tbody>
</table>
<h3 id="properties">Properties
</h3>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_AllowLeadingWildcard_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.AllowLeadingWildcard*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_AllowLeadingWildcard" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.AllowLeadingWildcard">AllowLeadingWildcard</h4>
<div class="markdown level1 summary"><p>Set to <code>true</code> to allow leading wildcard characters.
<p>
When set, <code>*</code> or <code>?</code> are allowed as the first
character of a <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.PrefixQuery.html">PrefixQuery</a> and <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.WildcardQuery.html">WildcardQuery</a>. Note that this can produce
very slow queries on big indexes.
<p>
Default: false.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual bool AllowLeadingWildcard { 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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Analyzer_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.Analyzer*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Analyzer" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.Analyzer">Analyzer</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 Analyzer Analyzer { 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">Lucene.Net.Analysis.Analyzer</span></td>
<td></td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_DateResolution_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.DateResolution*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_DateResolution" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.DateResolution">DateResolution</h4>
<div class="markdown level1 summary"><p>Gets the default <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span> used for certain field when
no <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span> is defined for this field.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual DateTools.Resolution DateResolution { 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">Lucene.Net.Documents.DateTools.Resolution</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_DateResolutionMap" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.DateResolutionMap">DateResolutionMap</h4>
<div class="markdown level1 summary"><p>Gets or Sets the field to <see cref="T:DateTools.Resolution?"></see> map used to normalize each date field.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual IDictionary&lt;string, DateTools.Resolution?&gt; DateResolutionMap { 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.Collections.Generic.IDictionary</span>&lt;<span class="xref">System.String</span>, <span class="xref">System.Nullable</span>&lt;<span class="xref">Lucene.Net.Documents.DateTools.Resolution</span>&gt;&gt;</td>
<td></td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_DefaultOperator_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.DefaultOperator*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_DefaultOperator" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.DefaultOperator">DefaultOperator</h4>
<div class="markdown level1 summary"><p>Gets or Sets the boolean operator of the QueryParser. In default mode (
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Config.StandardQueryConfigHandler.Operator.html#Lucene_Net_QueryParsers_Flexible_Standard_Config_StandardQueryConfigHandler_Operator_OR">OR</a>) terms without any modifiers are considered optional:
for example <code>capital of Hungary</code> is equal to
<code>capital OR of OR Hungary</code>.
<p>
In <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Config.StandardQueryConfigHandler.Operator.html#Lucene_Net_QueryParsers_Flexible_Standard_Config_StandardQueryConfigHandler_Operator_AND">AND</a> mode terms are considered to be in conjunction: the
above mentioned query is parsed as <code>capital AND of AND Hungary</code></p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual StandardQueryConfigHandler.Operator DefaultOperator { 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><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Config.StandardQueryConfigHandler.Operator.html">StandardQueryConfigHandler.Operator</a></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_EnablePositionIncrements" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.EnablePositionIncrements">EnablePositionIncrements</h4>
<div class="markdown level1 summary"><p>Set to <code>true</code> to enable position increments in result query.
<p>
When set, result phrase and multi-phrase queries will be aware of position
increments. Useful when e.g. a <span class="xref">Lucene.Net.Analysis.Core.StopFilter</span> increases the position increment
of the token that follows an omitted token.
<p>
Default: false.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual bool EnablePositionIncrements { 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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_FieldsBoost" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.FieldsBoost">FieldsBoost</h4>
<div class="markdown level1 summary"><p>Gets or Sets the field to boost map used to set boost for each field.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual IDictionary&lt;string, float?&gt; FieldsBoost { 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.Collections.Generic.IDictionary</span>&lt;<span class="xref">System.String</span>, <span class="xref">System.Nullable</span>&lt;<span class="xref">System.Single</span>&gt;&gt;</td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_FuzzyMinSim" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.FuzzyMinSim">FuzzyMinSim</h4>
<div class="markdown level1 summary"><p>Gets or Sets the minimum similarity for fuzzy queries. Default is defined on
<a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.FuzzyQuery.html#Lucene_Net_Search_FuzzyQuery_DefaultMinSimilarity">DefaultMinSimilarity</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual float FuzzyMinSim { 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.Single</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_FuzzyPrefixLength" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.FuzzyPrefixLength">FuzzyPrefixLength</h4>
<div class="markdown level1 summary"><p>Gets or Sets the prefix length for fuzzy queries. Default is 0.</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 FuzzyPrefixLength { 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>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Locale" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.Locale">Locale</h4>
<div class="markdown level1 summary"><p>Gets or Sets current locale, allowing access by subclasses. Used by date range parsing</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual CultureInfo Locale { 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.Globalization.CultureInfo</span></td>
<td></td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_LowercaseExpandedTerms_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.LowercaseExpandedTerms*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_LowercaseExpandedTerms" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.LowercaseExpandedTerms">LowercaseExpandedTerms</h4>
<div class="markdown level1 summary"><p>Set to <code>true</code> to allow leading wildcard characters.
<p>
When set, <code>*</code> or <code>?</code> are allowed as the first
character of a <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.PrefixQuery.html">PrefixQuery</a> and <a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.WildcardQuery.html">WildcardQuery</a>. Note that this can produce
very slow queries on big indexes.
<p>
Default: false.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual bool LowercaseExpandedTerms { 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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_MultiTermRewriteMethod" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.MultiTermRewriteMethod">MultiTermRewriteMethod</h4>
<div class="markdown level1 summary"><p>By default, it uses
<a class="xref" href="https://lucenenet.apache.org/docs/4.8.0-beta00013/api/core/Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_CONSTANT_SCORE_AUTO_REWRITE_DEFAULT">CONSTANT_SCORE_AUTO_REWRITE_DEFAULT</a> when creating a
prefix, wildcard and range queries. This implementation is generally
preferable because it a) Runs faster b) Does not have the scarcity of terms
unduly influence score c) avoids any Exception due to too many listeners.
However, if your application really needs to use the
old-fashioned boolean queries expansion rewriting and the above points are
not relevant then use this change the rewrite method.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual MultiTermQuery.RewriteMethod MultiTermRewriteMethod { 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">Lucene.Net.Search.MultiTermQuery.RewriteMethod</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_NumericConfigMap" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.NumericConfigMap">NumericConfigMap</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 IDictionary&lt;string, NumericConfig&gt; NumericConfigMap { 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.Collections.Generic.IDictionary</span>&lt;<span class="xref">System.String</span>, <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Config.NumericConfig.html">NumericConfig</a>&gt;</td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_PhraseSlop" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.PhraseSlop">PhraseSlop</h4>
<div class="markdown level1 summary"><p>Gets or Sets the default slop for phrases. If zero, then exact phrase matches are
required. Default value is zero. NOTE: Setter is deprecated.</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 PhraseSlop { 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>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_TimeZone" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.TimeZone">TimeZone</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 TimeZoneInfo TimeZone { 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.TimeZoneInfo</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_GetMultiFields_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.GetMultiFields*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_GetMultiFields" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.GetMultiFields">GetMultiFields()</h4>
<div class="markdown level1 summary"><p>Returns the fields used to expand the query when the field for a
certain query is <code>null</code></p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual string[] GetMultiFields()</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><p>the fields used to expand the query</p>
</td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Parse_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.Parse*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_Parse_System_String_System_String_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.Parse(System.String,System.String)">Parse(String, String)</h4>
<div class="markdown level1 summary"><p>Overrides <a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_Parse_System_String_System_String_">Parse(String, String)</a> so it casts the
return object to <span class="xref">Lucene.Net.Search.Query</span>. For more reference about this method, check
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper-1.html#Lucene_Net_QueryParsers_Flexible_Core_QueryParserHelper_1_Parse_System_String_System_String_">Parse(String, String)</a>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public override Query Parse(string query, string defaultField)</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">query</span></td>
<td><p>the query string</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">defaultField</span></td>
<td><p>the default field used by the text parser</p>
</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><p>the object built from the query</p>
</td>
</tr>
</tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><span class="xref">Lucene.Net.QueryParsers.Flexible.Core.QueryParserHelper&lt;Lucene.Net.Search.Query&gt;.Parse(System.String, System.String)</span></div>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Core.QueryNodeException.html">QueryNodeException</a></td>
<td><p>if something wrong happens along the three phases</p>
</td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetDateResolution_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetDateResolution*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetDateResolution_Lucene_Net_Documents_DateTools_Resolution_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetDateResolution(Lucene.Net.Documents.DateTools.Resolution)">SetDateResolution(DateTools.Resolution)</h4>
<div class="markdown level1 summary"><p>Sets the default <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span> used for certain field when
no <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span> is defined for this field.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual void SetDateResolution(DateTools.Resolution dateResolution)</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.Documents.DateTools.Resolution</span></td>
<td><span class="parametername">dateResolution</span></td>
<td><p>the default <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span></p>
</td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetDateResolution_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetDateResolution*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetDateResolution_System_Collections_Generic_IDictionary_System_String_System_Nullable_Lucene_Net_Documents_DateTools_Resolution___" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetDateResolution(System.Collections.Generic.IDictionary{System.String,System.Nullable{Lucene.Net.Documents.DateTools.Resolution}})">SetDateResolution(IDictionary&lt;String, Nullable&lt;DateTools.Resolution&gt;&gt;)</h4>
<div class="markdown level1 summary"><p>Sets the <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span> used for each field</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">[Obsolete(&quot;Use DateResolutionMap property instead.&quot;)]
public virtual void SetDateResolution(IDictionary&lt;string, DateTools.Resolution?&gt; dateRes)</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.IDictionary</span>&lt;<span class="xref">System.String</span>, <span class="xref">System.Nullable</span>&lt;<span class="xref">Lucene.Net.Documents.DateTools.Resolution</span>&gt;&gt;</td>
<td><span class="parametername">dateRes</span></td>
<td><p>a collection that maps a field to its <span class="xref">Lucene.Net.Documents.DateTools.Resolution</span></p>
</td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetDefaultPhraseSlop_System_Int32_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetDefaultPhraseSlop(System.Int32)">SetDefaultPhraseSlop(Int32)</h4>
<div class="markdown level1 summary"><p>Sets the default slop for phrases. If zero, then exact phrase matches are
required. Default value is zero.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">[Obsolete(&quot;Use PhraseSlop property setter instead.&quot;)]
public virtual void SetDefaultPhraseSlop(int defaultPhraseSlop)</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">defaultPhraseSlop</span></td>
<td></td>
</tr>
</tbody>
</table>
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<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_SetMultiFields_System_String___" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.SetMultiFields(System.String[])">SetMultiFields(String[])</h4>
<div class="markdown level1 summary"><p>Set the fields a query should be expanded to when the field is
<code>null</code></p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual void SetMultiFields(string[] fields)</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">fields</span></td>
<td><p>the fields used to expand the query</p>
</td>
</tr>
</tbody>
</table>
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<a id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_ToString_" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.ToString*"></a>
<h4 id="Lucene_Net_QueryParsers_Flexible_Standard_StandardQueryParser_ToString" data-uid="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.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">System.Object.ToString()</span></div>
<h3 id="implements">Implements</h3>
<div>
<a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.ICommonQueryParserConfiguration.html">ICommonQueryParserConfiguration</a>
</div>
<h3 id="seealso">See Also</h3>
<div class="seealso">
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.StandardQueryParser.html">StandardQueryParser</a></div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Config.StandardQueryConfigHandler.html">StandardQueryConfigHandler</a></div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Parser.StandardSyntaxParser.html">StandardSyntaxParser</a></div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Processors.StandardQueryNodeProcessorPipeline.html">StandardQueryNodeProcessorPipeline</a></div>
<div><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Standard.Builders.StandardQueryTreeBuilder.html">StandardQueryTreeBuilder</a></div>
</div>
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