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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.adapter.druid</a></div>
<h2 title="Class TimeExtractionFunction" class="title">Class TimeExtractionFunction</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
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<li>org.apache.calcite.adapter.druid.TimeExtractionFunction</li>
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<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>
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<pre>public class <span class="typeNameLabel">TimeExtractionFunction</span>
extends java.lang.Object
implements <a href="ExtractionFunction.html" title="interface in org.apache.calcite.adapter.druid">ExtractionFunction</a></pre>
<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>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#format">format</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#granularity">granularity</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ISO_TIME_FORMAT">ISO_TIME_FORMAT</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#local">local</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timeZone">timeZone</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private static com.google.common.collect.ImmutableSet&lt;org.apache.calcite.avatica.util.TimeUnitRange&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#VALID_TIME_EXTRACT">VALID_TIME_EXTRACT</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private static com.google.common.collect.ImmutableSet&lt;org.apache.calcite.avatica.util.TimeUnitRange&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#VALID_TIME_FLOOR">VALID_TIME_FLOOR</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,org.apache.calcite.adapter.druid.Granularity,java.lang.String,java.lang.String)">TimeExtractionFunction</a></span>&#8203;(java.lang.String&nbsp;format,
<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone,
java.lang.String&nbsp;local)</code></th>
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<td class="colFirst"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createDefault(java.lang.String)">createDefault</a></span>&#8203;(java.lang.String&nbsp;timeZone)</code></th>
<td class="colLast">
<div class="block">Creates the default time format extraction function.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createExtractFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)">createExtractFromGranularity</a></span>&#8203;(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone)</code></th>
<td class="colLast">
<div class="block">Creates the time format extraction function for the given granularity.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createFloorFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)">createFloorFromGranularity</a></span>&#8203;(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone)</code></th>
<td class="colLast">
<div class="block">Creates time format floor time extraction function using a given granularity.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFormat()">getFormat</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getGranularity()">getGranularity</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidTimeExtract(org.apache.calcite.rex.RexNode)">isValidTimeExtract</a></span>&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</code></th>
<td class="colLast">
<div class="block">Returns whether the RexCall contains a valid extract unit that we can
serialize to Druid.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValidTimeFloor(org.apache.calcite.rex.RexNode)">isValidTimeFloor</a></span>&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</code></th>
<td class="colLast">
<div class="block">Returns whether the RexCall contains a valid FLOOR unit that we can
serialize to Druid.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#translateCastToTimeExtract(org.apache.calcite.rex.RexNode,java.util.TimeZone)">translateCastToTimeExtract</a></span>&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode,
java.util.TimeZone&nbsp;timeZone)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#write(com.fasterxml.jackson.core.JsonGenerator)">write</a></span>&#8203;(com.fasterxml.jackson.core.JsonGenerator&nbsp;generator)</code></th>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>VALID_TIME_EXTRACT</h4>
<pre>private static final&nbsp;com.google.common.collect.ImmutableSet&lt;org.apache.calcite.avatica.util.TimeUnitRange&gt; VALID_TIME_EXTRACT</pre>
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<pre>private static final&nbsp;com.google.common.collect.ImmutableSet&lt;org.apache.calcite.avatica.util.TimeUnitRange&gt; VALID_TIME_FLOOR</pre>
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<pre>public static final&nbsp;java.lang.String ISO_TIME_FORMAT</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.calcite.adapter.druid.TimeExtractionFunction.ISO_TIME_FORMAT">Constant Field Values</a></dd>
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<h4>format</h4>
<pre>private final&nbsp;java.lang.String format</pre>
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<h4>granularity</h4>
<pre>private final&nbsp;<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a> granularity</pre>
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<h4>timeZone</h4>
<pre>private final&nbsp;java.lang.String timeZone</pre>
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<h4>local</h4>
<pre>private final&nbsp;java.lang.String local</pre>
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<h4>TimeExtractionFunction</h4>
<pre>public&nbsp;TimeExtractionFunction&#8203;(java.lang.String&nbsp;format,
<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone,
java.lang.String&nbsp;local)</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;write&#8203;(com.fasterxml.jackson.core.JsonGenerator&nbsp;generator)
throws java.io.IOException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></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><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
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<h4>getFormat</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;getFormat()</pre>
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<h4>getGranularity</h4>
<pre class="methodSignature">public&nbsp;<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;getGranularity()</pre>
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<pre class="methodSignature">public static&nbsp;<a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a>&nbsp;createDefault&#8203;(java.lang.String&nbsp;timeZone)</pre>
<div class="block">Creates the default time format extraction function.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the time extraction function</dd>
</dl>
</li>
</ul>
<a id="createExtractFromGranularity(org.apache.calcite.adapter.druid.Granularity,java.lang.String)">
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<h4>createExtractFromGranularity</h4>
<pre class="methodSignature">public static&nbsp;<a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a>&nbsp;createExtractFromGranularity&#8203;(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone)</pre>
<div class="block">Creates the time format extraction function for the given granularity.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>granularity</code> - granularity to apply to the column</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the time extraction function corresponding to the granularity input unit
<a href="#VALID_TIME_EXTRACT"><code>VALID_TIME_EXTRACT</code></a> for supported granularity</dd>
</dl>
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<h4>createFloorFromGranularity</h4>
<pre class="methodSignature">public static&nbsp;<a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a>&nbsp;createFloorFromGranularity&#8203;(<a href="Granularity.html" title="interface in org.apache.calcite.adapter.druid">Granularity</a>&nbsp;granularity,
java.lang.String&nbsp;timeZone)</pre>
<div class="block">Creates time format floor time extraction function using a given granularity.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>granularity</code> - granularity to apply to the column</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the time extraction function or null if granularity is not supported</dd>
</dl>
</li>
</ul>
<a id="isValidTimeExtract(org.apache.calcite.rex.RexNode)">
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<h4>isValidTimeExtract</h4>
<pre class="methodSignature">public static&nbsp;boolean&nbsp;isValidTimeExtract&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</pre>
<div class="block">Returns whether the RexCall contains a valid extract unit that we can
serialize to Druid.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rexNode</code> - Extract expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the extract unit is valid</dd>
</dl>
</li>
</ul>
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<h4>isValidTimeFloor</h4>
<pre class="methodSignature">public static&nbsp;boolean&nbsp;isValidTimeFloor&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode)</pre>
<div class="block">Returns whether the RexCall contains a valid FLOOR unit that we can
serialize to Druid.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rexNode</code> - Extract expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the extract unit is valid</dd>
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<h4>translateCastToTimeExtract</h4>
<pre class="methodSignature">@Nullable
public static&nbsp;<a href="TimeExtractionFunction.html" title="class in org.apache.calcite.adapter.druid">TimeExtractionFunction</a>&nbsp;translateCastToTimeExtract&#8203;(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rexNode,
java.util.TimeZone&nbsp;timeZone)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rexNode</code> - cast RexNode</dd>
<dd><code>timeZone</code> - timezone</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Druid Time extraction function or null when can not translate the cast.</dd>
</dl>
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