javadocAggregate/org/apache/calcite/plan/VisitorDataContext.html - calcite-site - Git at Google

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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.plan</a></div>
 <h1 title="Class VisitorDataContext" class="title">Class VisitorDataContext</h1>
 </div>
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
 <div class="inheritance">org.apache.calcite.plan.VisitorDataContext</div>
 </div>
 <section class="class-description" id="class-description">
 <dl class="notes">
 <dt>All Implemented Interfaces:</dt>
 <dd><code><a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></dd>
 </dl>
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">VisitorDataContext</span>
 <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
 implements <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></span></div>
 <div class="block">DataContext for evaluating a RexExpression.</div>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- ======== NESTED CLASS SUMMARY ======== -->
 <li>
 <section class="nested-class-summary" id="nested-class-summary">
 <h2>Nested Class Summary</h2>
 <div class="inherited-list">
 <h2 id="nested-classes-inherited-from-class-org.apache.calcite.DataContext">Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.<a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></h2>
 <code><a href="../DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a></code></div>
 </section>
 </li>
 <!-- =========== FIELD SUMMARY =========== -->
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 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="inherited-list">
 <h3 id="fields-inherited-from-class-org.apache.calcite.DataContext">Fields inherited from interface&nbsp;org.apache.calcite.<a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></h3>
 <code><a href="../DataContext.html#ROOT">ROOT</a></code></div>
 </section>
 </li>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <li>
 <section class="constructor-summary" id="constructor-summary">
 <h2>Constructor Summary</h2>
 <div class="caption"><span>Constructors</span></div>
 <div class="summary-table two-column-summary">
 <div class="table-header col-first">Constructor</div>
 <div class="table-header col-last">Description</div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(java.lang.Object%5B%5D)" class="member-name-link">VisitorDataContext</a><wbr>(@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>[]&nbsp;values)</code></div>
 <div class="col-last even-row-color">&nbsp;</div>
 </div>
 </section>
 </li>
 <!-- ========== METHOD SUMMARY =========== -->
 <li>
 <section class="method-summary" id="method-summary">
 <h2>Method Summary</h2>
 <div id="method-summary-table">
 <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
 <div id="method-summary-table.tabpanel" role="tabpanel">
 <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
 <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-tab4"><code>@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#get(java.lang.String)" class="member-name-link">get</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a context variable.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../linq4j/QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getQueryProvider()" class="member-name-link">getQueryProvider</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns the query provider.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../schema/SchemaPlus.html" title="interface in org.apache.calcite.schema">SchemaPlus</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getRootSchema()" class="member-name-link">getRootSchema</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a sub-schema with a given name, or null.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../adapter/java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTypeFactory()" class="member-name-link">getTypeFactory</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns the type factory.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static @Nullable <a href="../util/Pair.html" title="class in org.apache.calcite.util">Pair</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr>? extends @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getValue(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)" class="member-name-link">getValue</a><wbr>(@Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;inputRef,
  @Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;literal)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static @Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#of(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.logical.LogicalFilter)" class="member-name-link">of</a><wbr>(<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;targetRel,
  <a href="../rel/logical/LogicalFilter.html" title="class in org.apache.calcite.rel.logical">LogicalFilter</a>&nbsp;queryRel)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static @Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#of(org.apache.calcite.rel.type.RelDataType,java.util.List)" class="member-name-link">of</a><wbr>(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;rowType,
  <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;? extends <a href="../util/Pair.html" title="class in org.apache.calcite.util">Pair</a>&lt;<a href="../rex/RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>,<wbr>? extends @Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&gt;&nbsp;usageList)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static @Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#of(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rex.RexNode)" class="member-name-link">of</a><wbr>(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;rowType,
  <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rex)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
 </div>
 </div>
 </div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
 <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
 </section>
 </li>
 </ul>
 </section>
 <section class="details">
 <ul class="details-list">
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <li>
 <section class="constructor-details" id="constructor-detail">
 <h2>Constructor Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="&lt;init&gt;(java.lang.Object[])">
 <h3>VisitorDataContext</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">VisitorDataContext</span><wbr><span class="parameters">(@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>[]&nbsp;values)</span></div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ============ METHOD DETAIL ========== -->
 <li>
 <section class="method-details" id="method-detail">
 <h2>Method Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="getRootSchema()">
 <h3>getRootSchema</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../schema/SchemaPlus.html" title="interface in org.apache.calcite.schema">SchemaPlus</a></span>&nbsp;<span class="element-name">getRootSchema</span>()</div>
 <div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../DataContext.html#getRootSchema()">DataContext</a></code></span></div>
 <div class="block">Returns a sub-schema with a given name, or null.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../DataContext.html#getRootSchema()">getRootSchema</a></code>&nbsp;in interface&nbsp;<code><a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getTypeFactory()">
 <h3>getTypeFactory</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../adapter/java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a></span>&nbsp;<span class="element-name">getTypeFactory</span>()</div>
 <div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../DataContext.html#getTypeFactory()">DataContext</a></code></span></div>
 <div class="block">Returns the type factory.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../DataContext.html#getTypeFactory()">getTypeFactory</a></code>&nbsp;in interface&nbsp;<code><a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getQueryProvider()">
 <h3>getQueryProvider</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../linq4j/QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></span>&nbsp;<span class="element-name">getQueryProvider</span>()</div>
 <div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../DataContext.html#getQueryProvider()">DataContext</a></code></span></div>
 <div class="block">Returns the query provider.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../DataContext.html#getQueryProvider()">getQueryProvider</a></code>&nbsp;in interface&nbsp;<code><a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="get(java.lang.String)">
 <h3>get</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span>&nbsp;<span class="element-name">get</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
 <div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../DataContext.html#get(java.lang.String)">DataContext</a></code></span></div>
 <div class="block">Returns a context variable.

  <p>Supported variables include: "sparkContext", "currentTimestamp",
  "localTimestamp".</p></div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../DataContext.html#get(java.lang.String)">get</a></code>&nbsp;in interface&nbsp;<code><a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></code></dd>
 <dt>Parameters:</dt>
 <dd><code>name</code> - Name of variable</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="of(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.logical.LogicalFilter)">
 <h3>of</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></span>&nbsp;<span class="element-name">of</span><wbr><span class="parameters">(<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;targetRel,
  <a href="../rel/logical/LogicalFilter.html" title="class in org.apache.calcite.rel.logical">LogicalFilter</a>&nbsp;queryRel)</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="of(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rex.RexNode)">
 <h3>of</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></span>&nbsp;<span class="element-name">of</span><wbr><span class="parameters">(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;rowType,
  <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rex)</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="of(org.apache.calcite.rel.type.RelDataType,java.util.List)">
 <h3>of</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="../DataContext.html" title="interface in org.apache.calcite">DataContext</a></span>&nbsp;<span class="element-name">of</span><wbr><span class="parameters">(<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;rowType,
  <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;? extends <a href="../util/Pair.html" title="class in org.apache.calcite.util">Pair</a>&lt;<a href="../rex/RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>,<wbr>? extends @Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&gt;&nbsp;usageList)</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="getValue(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">
 <h3>getValue</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">@Nullable <a href="../util/Pair.html" title="class in org.apache.calcite.util">Pair</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr>? extends @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;</span>&nbsp;<span class="element-name">getValue</span><wbr><span class="parameters">(@Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;inputRef,
  @Nullable <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;literal)</span></div>
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