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| <h2 title="接口 AggContext" class="title">接口 AggContext</h2> |
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| <dl> |
| <dt>所有已知子接口:</dt> |
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| <pre>public interface <span class="typeNameLabel">AggContext</span></pre> |
| <div class="block">Information on the aggregate calculation context. |
| <a href="../../../../../org/apache/calcite/adapter/enumerable/AggAddContext.html" title="org.apache.calcite.adapter.enumerable中的接口"><code>AggAddContext</code></a> provides basic static information on types of arguments |
| and the return value of the aggregate being implemented.</div> |
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| <h3>方法概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释"> |
| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/SqlAggFunction.html" title="org.apache.calcite.sql中的类">SqlAggFunction</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#aggregation--">aggregation</a></span>()</code> |
| <div class="block">Returns the aggregation being implemented.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><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><<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="org.apache.calcite.util中的类">ImmutableBitSet</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#groupSets--">groupSets</a></span>()</code> |
| <div class="block">Returns the grouping sets we are aggregating on.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><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><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="java.lang中的类或接口">Integer</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#keyOrdinals--">keyOrdinals</a></span>()</code> |
| <div class="block">Returns the ordinals of the input fields that make up the key.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><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><? extends <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#keyRelTypes--">keyRelTypes</a></span>()</code> |
| <div class="block">Returns the types of the group key as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>.</div> |
| </td> |
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| <td class="colFirst"><code><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><? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口">Type</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#keyTypes--">keyTypes</a></span>()</code> |
| <div class="block">Returns the types of the group key as |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
| </td> |
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| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><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><? extends <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#parameterRelTypes--">parameterRelTypes</a></span>()</code> |
| <div class="block">Returns the parameter types of the aggregate as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>.</div> |
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| <td class="colFirst"><code><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><? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口">Type</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#parameterTypes--">parameterTypes</a></span>()</code> |
| <div class="block">Returns the parameter types of the aggregate as |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
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| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#returnRelType--">returnRelType</a></span>()</code> |
| <div class="block">Returns the return type of the aggregate as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>.</div> |
| </td> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口">Type</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggContext.html#returnType--">returnType</a></span>()</code> |
| <div class="block">Returns the return type of the aggregate as <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
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| <h3>方法详细资料</h3> |
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| <h4>aggregation</h4> |
| <pre><a href="../../../../../org/apache/calcite/sql/SqlAggFunction.html" title="org.apache.calcite.sql中的类">SqlAggFunction</a> aggregation()</pre> |
| <div class="block">Returns the aggregation being implemented.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>aggregation being implemented.</dd> |
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| <div class="block">Returns the return type of the aggregate as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>. |
| This can be helpful to test |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html#isNullable--"><code>RelDataType.isNullable()</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>return type of the aggregate</dd> |
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| <div class="block">Returns the return type of the aggregate as <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>return type of the aggregate as <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a></dd> |
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| <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><? extends <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>> parameterRelTypes()</pre> |
| <div class="block">Returns the parameter types of the aggregate as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>. |
| This can be helpful to test |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html#isNullable--"><code>RelDataType.isNullable()</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Parameter types of the aggregate</dd> |
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| <div class="block">Returns the parameter types of the aggregate as |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Parameter types of the aggregate</dd> |
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| <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><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="java.lang中的类或接口">Integer</a>> keyOrdinals()</pre> |
| <div class="block">Returns the ordinals of the input fields that make up the key.</div> |
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| <div class="block">Returns the types of the group key as |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口"><code>RelDataType</code></a>.</div> |
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| <div class="block">Returns the types of the group key as |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Type.html?is-external=true" title="java.lang.reflect中的类或接口"><code>Type</code></a>.</div> |
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| <div class="block">Returns the grouping sets we are aggregating on.</div> |
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