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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.adapter.druid</a></div>
<h1 title="Class TimeExtractionFunction" class="title">Class TimeExtractionFunction</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.calcite.adapter.druid.TimeExtractionFunction</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="DruidJson.html" title="interface in org.apache.calcite.adapter.druid">DruidJson</a></code>, <code><a href="ExtractionFunction.html" title="interface in org.apache.calcite.adapter.druid">ExtractionFunction</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">TimeExtractionFunction</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
implements <a href="ExtractionFunction.html" title="interface in org.apache.calcite.adapter.druid">ExtractionFunction</a></span></div>
<div class="block">Implementation of Druid time format extraction function.
<p>These functions return the dimension value formatted according to the given format string,
time zone, and locale.
<p>For __time dimension values, this formats the time value bucketed by the aggregation
granularity.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(java.lang.String,org.apache.calcite.adapter.druid.Granularity,java.lang.String,java.lang.String)" class="member-name-link">TimeExtractionFunction</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;format,
<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;local)</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
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<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createDefault(java.lang.String)" class="member-name-link">createDefault</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Creates the default time format extraction function.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createExtractFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)" class="member-name-link">createExtractFromGranularity</a><wbr>(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Creates the time format extraction function for the given granularity.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createFloorFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)" class="member-name-link">createFloorFromGranularity</a><wbr>(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Creates time format floor time extraction function using a given granularity.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getFormat()" class="member-name-link">getFormat</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getGranularity()" class="member-name-link">getGranularity</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#isValidTimeExtract(org.apache.calcite.rex.RexNode)" class="member-name-link">isValidTimeExtract</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Returns whether the RexCall contains a valid extract unit that we can
serialize to Druid.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#isValidTimeFloor(org.apache.calcite.rex.RexNode)" class="member-name-link">isValidTimeFloor</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Returns whether the RexCall contains a valid FLOOR unit that we can
serialize to Druid.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static @Nullable <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#translateCastToTimeExtract(org.apache.calcite.rex.RexNode,java.util.TimeZone)" class="member-name-link">translateCastToTimeExtract</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/TimeZone.html" title="class or interface in java.util" class="external-link">TimeZone</a>&nbsp;timeZone)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Translates a CAST expression to a Druid Time extraction function, or null
when can not translate the cast.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#write(com.fasterxml.jackson.core.JsonGenerator)" class="member-name-link">write</a><wbr>(com.fasterxml.jackson.core.JsonGenerator&nbsp;generator)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;(java.lang.String,org.apache.calcite.adapter.druid.Granularity,java.lang.String,java.lang.String)">
<h3>TimeExtractionFunction</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">TimeExtractionFunction</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;format,
<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;local)</span></div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="write(com.fasterxml.jackson.core.JsonGenerator)">
<h3>write</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">write</span><wbr><span class="parameters">(com.fasterxml.jackson.core.JsonGenerator&nbsp;generator)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="DruidJson.html#write(com.fasterxml.jackson.core.JsonGenerator)">write</a></code>&nbsp;in interface&nbsp;<code><a href="DruidJson.html" title="interface in org.apache.calcite.adapter.druid">DruidJson</a></code></dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getFormat()">
<h3>getFormat</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">getFormat</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getGranularity()">
<h3>getGranularity</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></span>&nbsp;<span class="element-name">getGranularity</span>()</div>
</section>
</li>
<li>
<section class="detail" id="createDefault(java.lang.String)">
<h3>createDefault</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></span>&nbsp;<span class="element-name">createDefault</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</span></div>
<div class="block">Creates the default time format extraction function.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the time extraction function</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="createExtractFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)">
<h3>createExtractFromGranularity</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></span>&nbsp;<span class="element-name">createExtractFromGranularity</span><wbr><span class="parameters">(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</span></div>
<div class="block">Creates the time format extraction function for the given granularity.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>granularity</code> - granularity to apply to the column</dd>
<dt>Returns:</dt>
<dd>the time extraction function corresponding to the granularity input unit
<code>VALID_TIME_EXTRACT</code> for supported granularity</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="createFloorFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)">
<h3>createFloorFromGranularity</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></span>&nbsp;<span class="element-name">createFloorFromGranularity</span><wbr><span class="parameters">(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;timeZone)</span></div>
<div class="block">Creates time format floor time extraction function using a given granularity.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>granularity</code> - granularity to apply to the column</dd>
<dt>Returns:</dt>
<dd>the time extraction function or null if granularity is not supported</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isValidTimeExtract(org.apache.calcite.rex.RexNode)">
<h3>isValidTimeExtract</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isValidTimeExtract</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</span></div>
<div class="block">Returns whether the RexCall contains a valid extract unit that we can
serialize to Druid.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>rexNode</code> - Extract expression</dd>
<dt>Returns:</dt>
<dd>true if the extract unit is valid</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isValidTimeFloor(org.apache.calcite.rex.RexNode)">
<h3>isValidTimeFloor</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isValidTimeFloor</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</span></div>
<div class="block">Returns whether the RexCall contains a valid FLOOR unit that we can
serialize to Druid.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>rexNode</code> - Extract expression</dd>
<dt>Returns:</dt>
<dd>true if the extract unit is valid</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="translateCastToTimeExtract(org.apache.calcite.rex.RexNode,java.util.TimeZone)">
<h3>translateCastToTimeExtract</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></span>&nbsp;<span class="element-name">translateCastToTimeExtract</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/TimeZone.html" title="class or interface in java.util" class="external-link">TimeZone</a>&nbsp;timeZone)</span></div>
<div class="block">Translates a CAST expression to a Druid Time extraction function, or null
when can not translate the cast.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>rexNode</code> - CAST RexNode</dd>
<dd><code>timeZone</code> - Timezone</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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