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| |
| <h1 id="Lucene_Net_Util_NumericUtils" data-uid="Lucene.Net.Util.NumericUtils" class="text-break">Class NumericUtils |
| </h1> |
| <div class="markdown level0 summary"><p>This is a helper class to generate prefix-encoded representations for numerical values |
| and supplies converters to represent float/double values as sortable integers/longs.</p> |
| <p><p>To quickly execute range queries in Apache Lucene, a range is divided recursively |
| into multiple intervals for searching: The center of the range is searched only with |
| the lowest possible precision in the trie, while the boundaries are matched |
| more exactly. this reduces the number of terms dramatically.</p> |
| <p><p>This class generates terms to achieve this: First the numerical integer values need to |
| be converted to bytes. For that integer values (32 bit or 64 bit) are made unsigned |
| and the bits are converted to ASCII chars with each 7 bit. The resulting byte[] is |
| sortable like the original integer value (even using UTF-8 sort order). Each value is also |
| prefixed (in the first char) by the <code>shift</code> value (number of bits removed) used |
| during encoding.</p> |
| <p><p>To also index floating point numbers, this class supplies two methods to convert them |
| to integer values by changing their bit layout: <a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_DoubleToSortableInt64_System_Double_">DoubleToSortableInt64(Double)</a>, |
| <a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_SingleToSortableInt32_System_Single_">SingleToSortableInt32(Single)</a>. You will have no precision loss by |
| converting floating point numbers to integers and back (only that the integer form |
| is not usable). Other data types like dates can easily converted to <span class="xref">System.Int64</span>s or <span class="xref">System.Int32</span>s (e.g. |
| date to long: <span class="xref">System.DateTime.Ticks</span>).</p> |
| <p><p>For easy usage, the trie algorithm is implemented for indexing inside |
| <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a> that can index <span class="xref">System.Int32</span>, <span class="xref">System.Int64</span>, |
| <span class="xref">System.Single</span>, and <span class="xref">System.Double</span>. For querying, |
| <a class="xref" href="Lucene.Net.Search.NumericRangeQuery.html">NumericRangeQuery</a> and <a class="xref" href="Lucene.Net.Search.NumericRangeFilter.html">NumericRangeFilter</a> implement the query part |
| for the same data types.</p> |
| <p><p>This class can also be used, to generate lexicographically sortable (according to |
| <a class="xref" href="Lucene.Net.Util.BytesRef.html#Lucene_Net_Util_BytesRef_UTF8SortedAsUTF16Comparer">UTF8SortedAsUTF16Comparer</a>) representations of numeric data |
| types for other usages (e.g. sorting).</p> |
| <p><p> |
| <div class="lucene-block lucene-internal">This is a Lucene.NET INTERNAL API, use at your own risk</div><p>@since 2.9, API changed non backwards-compliant in 4.0</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">NumericUtils</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> |
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| <span class="xref">System.Object.GetHashCode()</span> |
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| <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.Util.html">Lucene.Net.Util</a></h6> |
| <h6><strong>Assembly</strong>: Lucene.Net.dll</h6> |
| <h5 id="Lucene_Net_Util_NumericUtils_syntax">Syntax</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static class NumericUtils</code></pre> |
| </div> |
| <h3 id="fields">Fields |
| </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_Util_NumericUtils_BUF_SIZE_INT32.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.BUF_SIZE_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> |
| </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/Util/NumericUtils.cs/#L106">View Source</a> |
| </span> |
| <h4 id="Lucene_Net_Util_NumericUtils_BUF_SIZE_INT32" data-uid="Lucene.Net.Util.NumericUtils.BUF_SIZE_INT32">BUF_SIZE_INT32</h4> |
| <div class="markdown level1 summary"><p>The maximum term length (used for <span class="xref">byte[]</span> buffer size) |
| for encoding <span class="xref">System.Int32</span> values. |
| <p> |
| NOTE: This was BUF_SIZE_INT in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public const int BUF_SIZE_INT32 = 6</code></pre> |
| </div> |
| <h5 class="fieldValue">Field 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 id="Lucene_Net_Util_NumericUtils_BUF_SIZE_INT32_seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_Int32ToPrefixCodedBytes_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_">Int32ToPrefixCodedBytes(Int32, Int32, BytesRef)</a></div> |
| </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_Util_NumericUtils_BUF_SIZE_INT64.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.BUF_SIZE_INT64%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/Util/NumericUtils.cs/#L89">View Source</a> |
| </span> |
| <h4 id="Lucene_Net_Util_NumericUtils_BUF_SIZE_INT64" data-uid="Lucene.Net.Util.NumericUtils.BUF_SIZE_INT64">BUF_SIZE_INT64</h4> |
| <div class="markdown level1 summary"><p>The maximum term length (used for <span class="xref">byte[]</span> buffer size) |
| for encoding <span class="xref">System.Int64</span> values. |
| <p> |
| NOTE: This was BUF_SIZE_LONG in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public const int BUF_SIZE_INT64 = 11</code></pre> |
| </div> |
| <h5 class="fieldValue">Field 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 id="Lucene_Net_Util_NumericUtils_BUF_SIZE_INT64_seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_Int64ToPrefixCodedBytes_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_">Int64ToPrefixCodedBytes(Int64, Int32, BytesRef)</a></div> |
| </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_Util_NumericUtils_PRECISION_STEP_DEFAULT.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.PRECISION_STEP_DEFAULT%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/Util/NumericUtils.cs/#L72">View Source</a> |
| </span> |
| <h4 id="Lucene_Net_Util_NumericUtils_PRECISION_STEP_DEFAULT" data-uid="Lucene.Net.Util.NumericUtils.PRECISION_STEP_DEFAULT">PRECISION_STEP_DEFAULT</h4> |
| <div class="markdown level1 summary"><p>The default precision step used by <a class="xref" href="Lucene.Net.Documents.Int32Field.html">Int32Field</a>, |
| <a class="xref" href="Lucene.Net.Documents.SingleField.html">SingleField</a>, <a class="xref" href="Lucene.Net.Documents.Int64Field.html">Int64Field</a>, |
| <a class="xref" href="Lucene.Net.Documents.DoubleField.html">DoubleField</a>, <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a>, |
| <a class="xref" href="Lucene.Net.Search.NumericRangeQuery.html">NumericRangeQuery</a>, and <a class="xref" href="Lucene.Net.Search.NumericRangeFilter.html">NumericRangeFilter</a>.</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public const int PRECISION_STEP_DEFAULT = 4</code></pre> |
| </div> |
| <h5 class="fieldValue">Field 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> |
| <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_Util_NumericUtils_SHIFT_START_INT32.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SHIFT_START_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> |
| </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/Util/NumericUtils.cs/#L97">View Source</a> |
| </span> |
| <h4 id="Lucene_Net_Util_NumericUtils_SHIFT_START_INT32" data-uid="Lucene.Net.Util.NumericUtils.SHIFT_START_INT32">SHIFT_START_INT32</h4> |
| <div class="markdown level1 summary"><p>Integers are stored at lower precision by shifting off lower bits. The shift count is |
| stored as <code>SHIFT_START_INT32+shift</code> in the first byte |
| <p> |
| NOTE: This was SHIFT_START_INT in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public const byte SHIFT_START_INT32 = 96</code></pre> |
| </div> |
| <h5 class="fieldValue">Field 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.Byte</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_Util_NumericUtils_SHIFT_START_INT64.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SHIFT_START_INT64%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/Util/NumericUtils.cs/#L80">View Source</a> |
| </span> |
| <h4 id="Lucene_Net_Util_NumericUtils_SHIFT_START_INT64" data-uid="Lucene.Net.Util.NumericUtils.SHIFT_START_INT64">SHIFT_START_INT64</h4> |
| <div class="markdown level1 summary"><p>Longs are stored at lower precision by shifting off lower bits. The shift count is |
| stored as <code>SHIFT_START_INT64+shift</code> in the first byte |
| <p> |
| NOTE: This was SHIFT_START_LONG in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public const char SHIFT_START_INT64 = ' '</code></pre> |
| </div> |
| <h5 class="fieldValue">Field 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.Char</span></td> |
| <td></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_Util_NumericUtils_DoubleToSortableInt64_System_Double_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.DoubleToSortableInt64(System.Double)%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/Util/NumericUtils.cs/#L309">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_DoubleToSortableInt64_" data-uid="Lucene.Net.Util.NumericUtils.DoubleToSortableInt64*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_DoubleToSortableInt64_System_Double_" data-uid="Lucene.Net.Util.NumericUtils.DoubleToSortableInt64(System.Double)">DoubleToSortableInt64(Double)</h4> |
| <div class="markdown level1 summary"><p>Converts a <span class="xref">System.Double</span> value to a sortable signed <span class="xref">System.Int64</span>. |
| The value is converted by getting their IEEE 754 floating-point "double format" |
| bit layout and then some bits are swapped, to be able to compare the result as <span class="xref">System.Int64</span>. |
| By this the precision is not reduced, but the value can easily used as a <span class="xref">System.Int64</span>. |
| The sort order (including <span class="xref">System.Double.NaN</span>) is defined by |
| <span class="xref">System.Double.CompareTo(System.Double)</span>; <code>NaN</code> is greater than positive infinity. |
| <p> |
| NOTE: This was doubleToSortableLong() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static long DoubleToSortableInt64(double val)</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.Double</span></td> |
| <td><span class="parametername">val</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.Int64</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_DoubleToSortableInt64_System_Double__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_SortableInt64ToDouble_System_Int64_">SortableInt64ToDouble(Int64)</a></div> |
| </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_Util_NumericUtils_FilterPrefixCodedInt32s_Lucene_Net_Index_TermsEnum_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt32s(Lucene.Net.Index.TermsEnum)%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/Util/NumericUtils.cs/#L581">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_FilterPrefixCodedInt32s_" data-uid="Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt32s*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_FilterPrefixCodedInt32s_Lucene_Net_Index_TermsEnum_" data-uid="Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt32s(Lucene.Net.Index.TermsEnum)">FilterPrefixCodedInt32s(TermsEnum)</h4> |
| <div class="markdown level1 summary"><p>Filters the given <a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a> by accepting only prefix coded 32 bit |
| terms with a shift value of <code>0</code>. |
| <p> |
| NOTE: This was filterPrefixCodedInts() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static TermsEnum FilterPrefixCodedInt32s(TermsEnum termsEnum)</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.TermsEnum.html">TermsEnum</a></td> |
| <td><span class="parametername">termsEnum</span></td> |
| <td><p>The terms enum to filter </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><a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a></td> |
| <td><p>A filtered <a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a> that only returns prefix coded 32 bit |
| terms with a shift value of <code>0</code>. </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_Util_NumericUtils_FilterPrefixCodedInt64s_Lucene_Net_Index_TermsEnum_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt64s(Lucene.Net.Index.TermsEnum)%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/Util/NumericUtils.cs/#L553">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_FilterPrefixCodedInt64s_" data-uid="Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt64s*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_FilterPrefixCodedInt64s_Lucene_Net_Index_TermsEnum_" data-uid="Lucene.Net.Util.NumericUtils.FilterPrefixCodedInt64s(Lucene.Net.Index.TermsEnum)">FilterPrefixCodedInt64s(TermsEnum)</h4> |
| <div class="markdown level1 summary"><p>Filters the given <a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a> by accepting only prefix coded 64 bit |
| terms with a shift value of <code>0</code>. |
| <p> |
| NOTE: This was filterPrefixCodedLongs() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static TermsEnum FilterPrefixCodedInt64s(TermsEnum termsEnum)</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.TermsEnum.html">TermsEnum</a></td> |
| <td><span class="parametername">termsEnum</span></td> |
| <td><p>The terms enum to filter </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><a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a></td> |
| <td><p>A filtered <a class="xref" href="Lucene.Net.Index.TermsEnum.html">TermsEnum</a> that only returns prefix coded 64 bit |
| terms with a shift value of <code>0</code>. </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_Util_NumericUtils_GetPrefixCodedInt32Shift_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.GetPrefixCodedInt32Shift(Lucene.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> |
| </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/Util/NumericUtils.cs/#L235">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_GetPrefixCodedInt32Shift_" data-uid="Lucene.Net.Util.NumericUtils.GetPrefixCodedInt32Shift*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_GetPrefixCodedInt32Shift_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.GetPrefixCodedInt32Shift(Lucene.Net.Util.BytesRef)">GetPrefixCodedInt32Shift(BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns the shift value from a prefix encoded <span class="xref">System.Int32</span>. |
| <p> |
| NOTE: This was getPrefixCodedIntShift() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static int GetPrefixCodedInt32Shift(BytesRef val)</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.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">val</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.Int32</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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><span class="xref">System.FormatException</span></td> |
| <td><p>if the supplied <a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a> is |
| not correctly prefix encoded. </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_Util_NumericUtils_GetPrefixCodedInt64Shift_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.GetPrefixCodedInt64Shift(Lucene.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> |
| </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/Util/NumericUtils.cs/#L217">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_GetPrefixCodedInt64Shift_" data-uid="Lucene.Net.Util.NumericUtils.GetPrefixCodedInt64Shift*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_GetPrefixCodedInt64Shift_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.GetPrefixCodedInt64Shift(Lucene.Net.Util.BytesRef)">GetPrefixCodedInt64Shift(BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns the shift value from a prefix encoded <span class="xref">System.Int64</span>. |
| <p> |
| NOTE: This was getPrefixCodedLongShift() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static int GetPrefixCodedInt64Shift(BytesRef val)</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.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">val</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.Int32</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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><span class="xref">System.FormatException</span></td> |
| <td><p>if the supplied <a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a> is |
| not correctly prefix encoded. </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_Util_NumericUtils_Int32ToPrefixCoded_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.Int32ToPrefixCoded(System.Int32%2CSystem.Int32%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> |
| </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/Util/NumericUtils.cs/#L134">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_Int32ToPrefixCoded_" data-uid="Lucene.Net.Util.NumericUtils.Int32ToPrefixCoded*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_Int32ToPrefixCoded_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.Int32ToPrefixCoded(System.Int32,System.Int32,Lucene.Net.Util.BytesRef)">Int32ToPrefixCoded(Int32, Int32, BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns prefix coded bits after reducing the precision by <code data-dev-comment-type="paramref" class="paramref">shift</code> bits. |
| This is method is used by <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a>. |
| After encoding, <code>bytes.Offset</code> will always be 0. |
| <p> |
| NOTE: This was intToPrefixCoded() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void Int32ToPrefixCoded(int val, int shift, BytesRef bytes)</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">val</span></td> |
| <td><p>The numeric value </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">shift</span></td> |
| <td><p>How many bits to strip from the right </p> |
| </td> |
| </tr> |
| <tr> |
| <td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">bytes</span></td> |
| <td><p>Will contain the encoded value </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_Util_NumericUtils_Int32ToPrefixCodedBytes_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.Int32ToPrefixCodedBytes(System.Int32%2CSystem.Int32%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> |
| </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/Util/NumericUtils.cs/#L185">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_Int32ToPrefixCodedBytes_" data-uid="Lucene.Net.Util.NumericUtils.Int32ToPrefixCodedBytes*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_Int32ToPrefixCodedBytes_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.Int32ToPrefixCodedBytes(System.Int32,System.Int32,Lucene.Net.Util.BytesRef)">Int32ToPrefixCodedBytes(Int32, Int32, BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns prefix coded bits after reducing the precision by <code data-dev-comment-type="paramref" class="paramref">shift</code> bits. |
| This is method is used by <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a>. |
| After encoding, <code>bytes.Offset</code> will always be 0. |
| <p> |
| NOTE: This was intToPrefixCodedBytes() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void Int32ToPrefixCodedBytes(int val, int shift, BytesRef bytes)</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">val</span></td> |
| <td><p>The numeric value </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">shift</span></td> |
| <td><p>How many bits to strip from the right </p> |
| </td> |
| </tr> |
| <tr> |
| <td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">bytes</span></td> |
| <td><p>Will contain the encoded value </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_Util_NumericUtils_Int64ToPrefixCoded_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.Int64ToPrefixCoded(System.Int64%2CSystem.Int32%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> |
| </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/Util/NumericUtils.cs/#L118">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_Int64ToPrefixCoded_" data-uid="Lucene.Net.Util.NumericUtils.Int64ToPrefixCoded*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_Int64ToPrefixCoded_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.Int64ToPrefixCoded(System.Int64,System.Int32,Lucene.Net.Util.BytesRef)">Int64ToPrefixCoded(Int64, Int32, BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns prefix coded bits after reducing the precision by <code data-dev-comment-type="paramref" class="paramref">shift</code> bits. |
| This is method is used by <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a>. |
| After encoding, <code>bytes.Offset</code> will always be 0. |
| <p> |
| NOTE: This was longToPrefixCoded() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void Int64ToPrefixCoded(long val, int shift, BytesRef bytes)</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.Int64</span></td> |
| <td><span class="parametername">val</span></td> |
| <td><p>The numeric value </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">shift</span></td> |
| <td><p>How many bits to strip from the right </p> |
| </td> |
| </tr> |
| <tr> |
| <td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">bytes</span></td> |
| <td><p>Will contain the encoded value </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_Util_NumericUtils_Int64ToPrefixCodedBytes_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.Int64ToPrefixCodedBytes(System.Int64%2CSystem.Int32%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> |
| </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/Util/NumericUtils.cs/#L150">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_Int64ToPrefixCodedBytes_" data-uid="Lucene.Net.Util.NumericUtils.Int64ToPrefixCodedBytes*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_Int64ToPrefixCodedBytes_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.Int64ToPrefixCodedBytes(System.Int64,System.Int32,Lucene.Net.Util.BytesRef)">Int64ToPrefixCodedBytes(Int64, Int32, BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns prefix coded bits after reducing the precision by <code data-dev-comment-type="paramref" class="paramref">shift</code> bits. |
| This is method is used by <a class="xref" href="Lucene.Net.Analysis.NumericTokenStream.html">NumericTokenStream</a>. |
| After encoding, <code>bytes.Offset</code> will always be 0. |
| <p> |
| NOTE: This was longToPrefixCodedBytes() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void Int64ToPrefixCodedBytes(long val, int shift, BytesRef bytes)</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.Int64</span></td> |
| <td><span class="parametername">val</span></td> |
| <td><p>The numeric value </p> |
| </td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">shift</span></td> |
| <td><p>How many bits to strip from the right </p> |
| </td> |
| </tr> |
| <tr> |
| <td><a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">bytes</span></td> |
| <td><p>Will contain the encoded value </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_Util_NumericUtils_PrefixCodedToInt32_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.PrefixCodedToInt32(Lucene.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> |
| </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/Util/NumericUtils.cs/#L282">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt32_" data-uid="Lucene.Net.Util.NumericUtils.PrefixCodedToInt32*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt32_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.PrefixCodedToInt32(Lucene.Net.Util.BytesRef)">PrefixCodedToInt32(BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns an <span class="xref">System.Int32</span> from prefixCoded bytes. |
| Rightmost bits will be zero for lower precision codes. |
| This method can be used to decode a term's value. |
| <p> |
| NOTE: This was prefixCodedToInt() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static int PrefixCodedToInt32(BytesRef val)</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.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">val</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.Int32</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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><span class="xref">System.FormatException</span></td> |
| <td><p>if the supplied <a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a> is |
| not correctly prefix encoded. </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt32_Lucene_Net_Util_BytesRef__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_Int32ToPrefixCodedBytes_System_Int32_System_Int32_Lucene_Net_Util_BytesRef_">Int32ToPrefixCodedBytes(Int32, Int32, BytesRef)</a></div> |
| </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_Util_NumericUtils_PrefixCodedToInt64_Lucene_Net_Util_BytesRef_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.PrefixCodedToInt64(Lucene.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> |
| </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/Util/NumericUtils.cs/#L256">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt64_" data-uid="Lucene.Net.Util.NumericUtils.PrefixCodedToInt64*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt64_Lucene_Net_Util_BytesRef_" data-uid="Lucene.Net.Util.NumericUtils.PrefixCodedToInt64(Lucene.Net.Util.BytesRef)">PrefixCodedToInt64(BytesRef)</h4> |
| <div class="markdown level1 summary"><p>Returns a <span class="xref">System.Int64</span> from prefixCoded bytes. |
| Rightmost bits will be zero for lower precision codes. |
| This method can be used to decode a term's value. |
| <p> |
| NOTE: This was prefixCodedToLong() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static long PrefixCodedToInt64(BytesRef val)</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.Util.BytesRef.html">BytesRef</a></td> |
| <td><span class="parametername">val</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.Int64</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <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><span class="xref">System.FormatException</span></td> |
| <td><p>if the supplied <a class="xref" href="Lucene.Net.Util.BytesRef.html">BytesRef</a> is |
| not correctly prefix encoded. </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_PrefixCodedToInt64_Lucene_Net_Util_BytesRef__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_Int64ToPrefixCodedBytes_System_Int64_System_Int32_Lucene_Net_Util_BytesRef_">Int64ToPrefixCodedBytes(Int64, Int32, BytesRef)</a></div> |
| </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_Util_NumericUtils_SingleToSortableInt32_System_Single_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SingleToSortableInt32(System.Single)%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/Util/NumericUtils.cs/#L347">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_SingleToSortableInt32_" data-uid="Lucene.Net.Util.NumericUtils.SingleToSortableInt32*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_SingleToSortableInt32_System_Single_" data-uid="Lucene.Net.Util.NumericUtils.SingleToSortableInt32(System.Single)">SingleToSortableInt32(Single)</h4> |
| <div class="markdown level1 summary"><p>Converts a <span class="xref">System.Single</span> value to a sortable signed <span class="xref">System.Int32</span>. |
| The value is converted by getting their IEEE 754 floating-point "float format" |
| bit layout and then some bits are swapped, to be able to compare the result as <span class="xref">System.Int32</span>. |
| By this the precision is not reduced, but the value can easily used as an <span class="xref">System.Int32</span>. |
| The sort order (including <span class="xref">System.Single.NaN</span>) is defined by |
| <span class="xref">System.Single.CompareTo(System.Single)</span>; <code>NaN</code> is greater than positive infinity. |
| <p> |
| NOTE: This was floatToSortableInt() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static int SingleToSortableInt32(float val)</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.Single</span></td> |
| <td><span class="parametername">val</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.Int32</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_SingleToSortableInt32_System_Single__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_SortableInt32ToSingle_System_Int32_">SortableInt32ToSingle(Int32)</a></div> |
| </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_Util_NumericUtils_SortableInt32ToSingle_System_Int32_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SortableInt32ToSingle(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> |
| </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/Util/NumericUtils.cs/#L364">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_SortableInt32ToSingle_" data-uid="Lucene.Net.Util.NumericUtils.SortableInt32ToSingle*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_SortableInt32ToSingle_System_Int32_" data-uid="Lucene.Net.Util.NumericUtils.SortableInt32ToSingle(System.Int32)">SortableInt32ToSingle(Int32)</h4> |
| <div class="markdown level1 summary"><p>Converts a sortable <span class="xref">System.Int32</span> back to a <span class="xref">System.Single</span>. |
| <p> |
| NOTE: This was sortableIntToFloat() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static float SortableInt32ToSingle(int val)</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">val</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.Single</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_SortableInt32ToSingle_System_Int32__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_SingleToSortableInt32_System_Single_">SingleToSortableInt32(Single)</a></div> |
| </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_Util_NumericUtils_SortableInt64ToDouble_System_Int64_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SortableInt64ToDouble(System.Int64)%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/Util/NumericUtils.cs/#L326">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_SortableInt64ToDouble_" data-uid="Lucene.Net.Util.NumericUtils.SortableInt64ToDouble*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_SortableInt64ToDouble_System_Int64_" data-uid="Lucene.Net.Util.NumericUtils.SortableInt64ToDouble(System.Int64)">SortableInt64ToDouble(Int64)</h4> |
| <div class="markdown level1 summary"><p>Converts a sortable <span class="xref">System.Int64</span> back to a <span class="xref">System.Double</span>. |
| <p> |
| NOTE: This was sortableLongToDouble() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static double SortableInt64ToDouble(long val)</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.Int64</span></td> |
| <td><span class="parametername">val</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.Double</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <h5 id="Lucene_Net_Util_NumericUtils_SortableInt64ToDouble_System_Int64__seealso">See Also</h5> |
| <div class="seealso"> |
| <div><a class="xref" href="Lucene.Net.Util.NumericUtils.html#Lucene_Net_Util_NumericUtils_DoubleToSortableInt64_System_Double_">DoubleToSortableInt64(Double)</a></div> |
| </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_Util_NumericUtils_SplitInt32Range_Lucene_Net_Util_NumericUtils_Int32RangeBuilder_System_Int32_System_Int32_System_Int32_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SplitInt32Range(Lucene.Net.Util.NumericUtils.Int32RangeBuilder%2CSystem.Int32%2CSystem.Int32%2CSystem.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> |
| </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/Util/NumericUtils.cs/#L402">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_SplitInt32Range_" data-uid="Lucene.Net.Util.NumericUtils.SplitInt32Range*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_SplitInt32Range_Lucene_Net_Util_NumericUtils_Int32RangeBuilder_System_Int32_System_Int32_System_Int32_" data-uid="Lucene.Net.Util.NumericUtils.SplitInt32Range(Lucene.Net.Util.NumericUtils.Int32RangeBuilder,System.Int32,System.Int32,System.Int32)">SplitInt32Range(NumericUtils.Int32RangeBuilder, Int32, Int32, Int32)</h4> |
| <div class="markdown level1 summary"><p>Splits an <span class="xref">System.Int32</span> range recursively. |
| You may implement a builder that adds clauses to a |
| <a class="xref" href="Lucene.Net.Search.BooleanQuery.html">BooleanQuery</a> for each call to its |
| <a class="xref" href="Lucene.Net.Util.NumericUtils.Int32RangeBuilder.html#Lucene_Net_Util_NumericUtils_Int32RangeBuilder_AddRange_Lucene_Net_Util_BytesRef_Lucene_Net_Util_BytesRef_">AddRange(BytesRef, BytesRef)</a> |
| method. |
| <p> |
| This method is used by <a class="xref" href="Lucene.Net.Search.NumericRangeQuery.html">NumericRangeQuery</a>. |
| <p> |
| NOTE: This was splitIntRange() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void SplitInt32Range(NumericUtils.Int32RangeBuilder builder, int precisionStep, int minBound, int maxBound)</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.Util.NumericUtils.Int32RangeBuilder.html">NumericUtils.Int32RangeBuilder</a></td> |
| <td><span class="parametername">builder</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">precisionStep</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">minBound</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">maxBound</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_Util_NumericUtils_SplitInt64Range_Lucene_Net_Util_NumericUtils_Int64RangeBuilder_System_Int32_System_Int64_System_Int64_.md&value=---%0Auid%3A%20Lucene.Net.Util.NumericUtils.SplitInt64Range(Lucene.Net.Util.NumericUtils.Int64RangeBuilder%2CSystem.Int32%2CSystem.Int64%2CSystem.Int64)%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/Util/NumericUtils.cs/#L385">View Source</a> |
| </span> |
| <a id="Lucene_Net_Util_NumericUtils_SplitInt64Range_" data-uid="Lucene.Net.Util.NumericUtils.SplitInt64Range*"></a> |
| <h4 id="Lucene_Net_Util_NumericUtils_SplitInt64Range_Lucene_Net_Util_NumericUtils_Int64RangeBuilder_System_Int32_System_Int64_System_Int64_" data-uid="Lucene.Net.Util.NumericUtils.SplitInt64Range(Lucene.Net.Util.NumericUtils.Int64RangeBuilder,System.Int32,System.Int64,System.Int64)">SplitInt64Range(NumericUtils.Int64RangeBuilder, Int32, Int64, Int64)</h4> |
| <div class="markdown level1 summary"><p>Splits a long range recursively. |
| You may implement a builder that adds clauses to a |
| <a class="xref" href="Lucene.Net.Search.BooleanQuery.html">BooleanQuery</a> for each call to its |
| <a class="xref" href="Lucene.Net.Util.NumericUtils.Int64RangeBuilder.html#Lucene_Net_Util_NumericUtils_Int64RangeBuilder_AddRange_Lucene_Net_Util_BytesRef_Lucene_Net_Util_BytesRef_">AddRange(BytesRef, BytesRef)</a> |
| method. |
| <p> |
| This method is used by <a class="xref" href="Lucene.Net.Search.NumericRangeQuery.html">NumericRangeQuery</a>. |
| <p> |
| NOTE: This was splitLongRange() in Lucene</p> |
| </div> |
| <div class="markdown level1 conceptual"></div> |
| <h5 class="decalaration">Declaration</h5> |
| <div class="codewrapper"> |
| <pre><code class="lang-csharp hljs">public static void SplitInt64Range(NumericUtils.Int64RangeBuilder builder, int precisionStep, long minBound, long maxBound)</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.Util.NumericUtils.Int64RangeBuilder.html">NumericUtils.Int64RangeBuilder</a></td> |
| <td><span class="parametername">builder</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int32</span></td> |
| <td><span class="parametername">precisionStep</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int64</span></td> |
| <td><span class="parametername">minBound</span></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td><span class="xref">System.Int64</span></td> |
| <td><span class="parametername">maxBound</span></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </article> |
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