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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.adapter.enumerable</a></div> |
| <h1 title="Interface AggResultContext" class="title">Interface AggResultContext</h1> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="AggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggResetContext</a></code>, <code><a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a></code></dd> |
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| <dl> |
| <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="WinAggAddContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggAddContext</a></code>, <code><a href="WinAggResultContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggResultContext</a></code></dd> |
| </dl> |
| <dl> |
| <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/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/WinAggResultContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggResultContextImpl</a></code></dd> |
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| <pre>public interface <span class="typeNameLabel">AggResultContext</span> |
| extends <a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a>, <a href="AggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggResetContext</a></pre> |
| <div class="block">Information for a call to |
| <a href="AggImplementor.html#implementResult(org.apache.calcite.adapter.enumerable.AggContext,org.apache.calcite.adapter.enumerable.AggResultContext)"><code>AggImplementor.implementResult(AggContext, AggResultContext)</code></a> |
| |
| <p>Typically, the aggregation implementation will convert |
| <a href="AggResetContext.html#accumulator()"><code>AggResetContext.accumulator()</code></a> to the resulting value of the aggregation. The |
| implementation MUST NOT destroy the contents of <a href="AggResetContext.html#accumulator()"><code>AggResetContext.accumulator()</code></a>.</div> |
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| <h2>Method Summary</h2> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
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| <td class="colFirst"><code><a href="../../rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#call()">call</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <td class="colFirst"><code>@Nullable <a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#key()">key</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Expression by which to reference the key upon which the values in the |
| accumulator were aggregated.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i2"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#keyField(int)">keyField</a></span>​(int i)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an expression that references the <code>i</code>th field of the key, |
| cast to the appropriate type.</div> |
| </td> |
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| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from interface org.apache.calcite.adapter.enumerable.<a href="AggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggResetContext</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.adapter.enumerable.AggResetContext"> |
| <!-- --> |
| </a><code><a href="AggResetContext.html#accumulator()">accumulator</a></code></div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from interface org.apache.calcite.adapter.enumerable.<a href="NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.adapter.enumerable.NestedBlockBuilder"> |
| <!-- --> |
| </a><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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| <h3><a id="key()">key</a></h3> |
| <div class="memberSignature"><span class="returnType">@Nullable <a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></span> <span class="memberName">key</span>()</div> |
| <div class="block">Expression by which to reference the key upon which the values in the |
| accumulator were aggregated. Most aggregate functions depend on only the |
| accumulator, but quasi-aggregate functions such as GROUPING access at the |
| key.</div> |
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| <h3><a id="keyField(int)">keyField</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></span> <span class="memberName">keyField</span>​(<span class="arguments">int i)</span></div> |
| <div class="block">Returns an expression that references the <code>i</code>th field of the key, |
| cast to the appropriate type.</div> |
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| <h3><a id="call()">call</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="../../rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a></span> <span class="memberName">call</span>()</div> |
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