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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.enumerable</a></div>
<h1 title="Interface AggResetContext" class="title">Interface AggResetContext</h1>
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<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Superinterfaces:</dt>
<dd><code><a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Subinterfaces:</dt>
<dd><code><a href="AggAddContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggAddContext</a></code>, <code><a href="AggResultContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggResultContext</a></code>, <code><a href="WinAggAddContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggAddContext</a></code>, <code><a href="WinAggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggResetContext</a></code>, <code><a href="WinAggResultContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggResultContext</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="impl/AggAddContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">AggAddContextImpl</a></code>, <code><a href="impl/AggResetContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">AggResetContextImpl</a></code>, <code><a href="impl/AggResultContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">AggResultContextImpl</a></code>, <code><a href="impl/WinAggAddContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggAddContextImpl</a></code>, <code><a href="impl/WinAggResetContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggResetContextImpl</a></code>, <code><a href="impl/WinAggResultContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggResultContextImpl</a></code></dd>
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<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">AggResetContext</span><span class="extends-implements">
extends <a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a></span></div>
<div class="block">Information for a call to
<a href="AggImplementor.html#implementReset(org.apache.calcite.adapter.enumerable.AggContext,org.apache.calcite.adapter.enumerable.AggResetContext)"><code>AggImplementor.implementReset(AggContext, AggResetContext)</code></a>.
<p><a href="AggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable"><code>AggResetContext</code></a> provides access to the accumulator variables
that should be reset.</div>
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<h2>Method Summary</h2>
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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-tab2 method-summary-table-tab3"><code><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;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#accumulator()" class="member-name-link">accumulator</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns accumulator variables that should be reset.</div>
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<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.adapter.enumerable.NestedBlockBuilder">Methods inherited from interface&nbsp;org.apache.calcite.adapter.enumerable.<a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a></h3>
<code><a href="NestedBlockBuilder.html#currentBlock()">currentBlock</a>, <a href="NestedBlockBuilder.html#exitBlock()">exitBlock</a>, <a href="NestedBlockBuilder.html#nestBlock()">nestBlock</a>, <a href="NestedBlockBuilder.html#nestBlock(org.apache.calcite.linq4j.tree.BlockBuilder)">nestBlock</a></code></div>
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<h2>Method Details</h2>
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<section class="detail" id="accumulator()">
<h3>accumulator</h3>
<div class="member-signature"><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;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;</span>&nbsp;<span class="element-name">accumulator</span>()</div>
<div class="block">Returns accumulator variables that should be reset.
There MUST be an assignment even if you just assign the default value.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>accumulator variables that should be reset or empty list when no
accumulator variables are used by the aggregate implementation.</dd>
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><a href="AggImplementor.html#getStateType(org.apache.calcite.adapter.enumerable.AggContext)"><code>AggImplementor.getStateType(org.apache.calcite.adapter.enumerable.AggContext)</code></a></li>
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