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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 DruidDateTimeUtils" class="title">Class DruidDateTimeUtils</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.DruidDateTimeUtils</div>
</div>
<section class="class-description" id="class-description">
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">DruidDateTimeUtils</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></span></div>
<div class="block">Utilities for generating intervals from RexNode.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>protected static final org.slf4j.Logger</code></div>
<div class="col-second even-row-color"><code><a href="#LOGGER" class="member-name-link">LOGGER</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<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-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>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<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 @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;org.joda.time.Interval&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createInterval(org.apache.calcite.rex.RexNode)" class="member-name-link">createInterval</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Generates a list of <code>Interval</code>s equivalent to a given
expression.</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="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#extractGranularity(org.apache.calcite.rex.RexNode,java.lang.String)" class="member-name-link">extractGranularity</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
<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">Infers granularity from a time unit.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>protected static @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#extractRanges(org.apache.calcite.rex.RexNode,boolean)" class="member-name-link">extractRanges</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
boolean&nbsp;withNot)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 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>protected static @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#leafToRanges(org.apache.calcite.rex.RexCall,boolean)" class="member-name-link">leafToRanges</a><wbr>(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
boolean&nbsp;withNot)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>protected static @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#literalValue(org.apache.calcite.rex.RexNode)" class="member-name-link">literalValue</a><wbr>(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Returns the literal value for the given node, assuming it is a literal with
datetime type, or a cast that only alters nullability on top of a literal with
datetime type.</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="Granularity.Type.html" title="enum in org.apache.calcite.adapter.druid">Granularity.Type</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toDruidGranularity(org.apache.calcite.avatica.util.TimeUnitRange)" class="member-name-link">toDruidGranularity</a><wbr>(org.apache.calcite.avatica.util.TimeUnitRange&nbsp;timeUnit)</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 Calcite <code>TimeUnitRange</code> to a Druid <a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid"><code>Granularity</code></a>.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>protected static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;org.joda.time.Interval&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#toInterval(java.util.List)" class="member-name-link">toInterval</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;&nbsp;ranges)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 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 @Nullable <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-tab1 method-summary-table-tab4"><code><a href="#toISOPeriodFormat(org.apache.calcite.adapter.druid.Granularity.Type)" class="member-name-link">toISOPeriodFormat</a><wbr>(<a href="Granularity.Type.html" title="enum in org.apache.calcite.adapter.druid">Granularity.Type</a>&nbsp;type)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Converts a granularity to ISO period format.</div>
</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">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="LOGGER">
<h3>LOGGER</h3>
<div class="member-signature"><span class="modifiers">protected static final</span>&nbsp;<span class="return-type">org.slf4j.Logger</span>&nbsp;<span class="element-name">LOGGER</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="createInterval(org.apache.calcite.rex.RexNode)">
<h3>createInterval</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;org.joda.time.Interval&gt;</span>&nbsp;<span class="element-name">createInterval</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</span></div>
<div class="block">Generates a list of <code>Interval</code>s equivalent to a given
expression. Assumes that all the predicates in the input
reference a single column: the timestamp column.</div>
</section>
</li>
<li>
<section class="detail" id="toInterval(java.util.List)">
<h3>toInterval</h3>
<div class="member-signature"><span class="modifiers">protected static</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;org.joda.time.Interval&gt;</span>&nbsp;<span class="element-name">toInterval</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;&nbsp;ranges)</span></div>
</section>
</li>
<li>
<section class="detail" id="extractRanges(org.apache.calcite.rex.RexNode,boolean)">
<h3>extractRanges</h3>
<div class="member-signature"><span class="modifiers">protected static</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;</span>&nbsp;<span class="element-name">extractRanges</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
boolean&nbsp;withNot)</span></div>
</section>
</li>
<li>
<section class="detail" id="leafToRanges(org.apache.calcite.rex.RexCall,boolean)">
<h3>leafToRanges</h3>
<div class="member-signature"><span class="modifiers">protected static</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;com.google.common.collect.Range&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>&gt;&gt;</span>&nbsp;<span class="element-name">leafToRanges</span><wbr><span class="parameters">(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
boolean&nbsp;withNot)</span></div>
</section>
</li>
<li>
<section class="detail" id="literalValue(org.apache.calcite.rex.RexNode)">
<h3>literalValue</h3>
<div class="member-signature"><span class="modifiers">protected static</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a></span>&nbsp;<span class="element-name">literalValue</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node)</span></div>
<div class="block">Returns the literal value for the given node, assuming it is a literal with
datetime type, or a cast that only alters nullability on top of a literal with
datetime type.</div>
</section>
</li>
<li>
<section class="detail" id="extractGranularity(org.apache.calcite.rex.RexNode,java.lang.String)">
<h3>extractGranularity</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></span>&nbsp;<span class="element-name">extractGranularity</span><wbr><span class="parameters">(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;node,
<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">Infers granularity from a time unit.
It supports <code>FLOOR(&lt;time&gt; TO &lt;timeunit&gt;)</code>
and <code>EXTRACT(&lt;timeunit&gt; FROM &lt;time&gt;)</code>.
Returns null if it cannot be inferred.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>node</code> - the Rex node</dd>
<dt>Returns:</dt>
<dd>the granularity, or null if it cannot be inferred</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toISOPeriodFormat(org.apache.calcite.adapter.druid.Granularity.Type)">
<h3>toISOPeriodFormat</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <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">toISOPeriodFormat</span><wbr><span class="parameters">(<a href="Granularity.Type.html" title="enum in org.apache.calcite.adapter.druid">Granularity.Type</a>&nbsp;type)</span></div>
<div class="block">Converts a granularity to ISO period format.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>type</code> - Druid Granularity to translate as period of time</dd>
<dt>Returns:</dt>
<dd>String representing the granularity as ISO8601 Period of Time; null
for unknown case</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toDruidGranularity(org.apache.calcite.avatica.util.TimeUnitRange)">
<h3>toDruidGranularity</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="Granularity.Type.html" title="enum in org.apache.calcite.adapter.druid">Granularity.Type</a></span>&nbsp;<span class="element-name">toDruidGranularity</span><wbr><span class="parameters">(org.apache.calcite.avatica.util.TimeUnitRange&nbsp;timeUnit)</span></div>
<div class="block">Translates a Calcite <code>TimeUnitRange</code> to a Druid <a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid"><code>Granularity</code></a>.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>timeUnit</code> - Calcite Time unit to convert</dd>
<dt>Returns:</dt>
<dd>Druid Granularity or null</dd>
</dl>
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