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<h2 title="接口 AggResetContext" class="title">接口 AggResetContext</h2>
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<dd><a href="../../../../../org/apache/calcite/adapter/enumerable/AggAddContext.html" title="org.apache.calcite.adapter.enumerable中的接口">AggAddContext</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/AggResultContext.html" title="org.apache.calcite.adapter.enumerable中的接口">AggResultContext</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/WinAggAddContext.html" title="org.apache.calcite.adapter.enumerable中的接口">WinAggAddContext</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/WinAggResetContext.html" title="org.apache.calcite.adapter.enumerable中的接口">WinAggResetContext</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/WinAggResultContext.html" title="org.apache.calcite.adapter.enumerable中的接口">WinAggResultContext</a></dd>
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<pre>public interface <span class="typeNameLabel">AggResetContext</span>
extends <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html" title="org.apache.calcite.adapter.enumerable中的接口">NestedBlockBuilder</a></pre>
<div class="block">Information for a call to
<a href="../../../../../org/apache/calcite/adapter/enumerable/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="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html" title="org.apache.calcite.adapter.enumerable中的接口"><code>AggResetContext</code></a> provides access to the accumulator variables
that should be reset.</div>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html#accumulator--">accumulator</a></span>()</code>
<div class="block">Returns accumulator variables that should be reset.</div>
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<code><a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#currentBlock--">currentBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#currentNullables--">currentNullables</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#exitBlock--">exitBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#nestBlock--">nestBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#nestBlock-org.apache.calcite.linq4j.tree.BlockBuilder-">nestBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#nestBlock-org.apache.calcite.linq4j.tree.BlockBuilder-java.util.Map-">nestBlock</a></code></li>
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<h4>accumulator</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a>&lt;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&gt;&nbsp;accumulator()</pre>
<div class="block">Returns accumulator variables that should be reset.
There MUST be an assignment even if you just assign the default value.</div>
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<dt><span class="returnLabel">返回:</span></dt>
<dd>accumulator variables that should be reset or empty list when no
accumulator variables are used by the aggregate implementation.</dd>
<dt><span class="seeLabel">另请参阅:</span></dt>
<dd><a href="../../../../../org/apache/calcite/adapter/enumerable/AggImplementor.html#getStateType-org.apache.calcite.adapter.enumerable.AggContext-"><code>AggImplementor.getStateType(org.apache.calcite.adapter.enumerable.AggContext)</code></a></dd>
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