javadocAggregate/org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html - calcite-site - Git at Google

 <!DOCTYPE HTML>
 <html lang="en">
 <head>
 <!-- Generated by javadoc (17) -->
 <title>ClassDeclarationFinder (Apache Calcite API)</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta name="description" content="declaration: package: org.apache.calcite.linq4j.tree, class: ClassDeclarationFinder">
 <meta name="generator" content="javadoc/ClassWriterImpl">
 <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
 <link rel="stylesheet" type="text/css" href="../../../../../script-dir/jquery-ui.min.css" title="Style">
 <link rel="stylesheet" type="text/css" href="../../../../../jquery-ui.overrides.css" title="Style">
 <script type="text/javascript" src="../../../../../script.js"></script>
 <script type="text/javascript" src="../../../../../script-dir/jquery-3.5.1.min.js"></script>
 <script type="text/javascript" src="../../../../../script-dir/jquery-ui.min.js"></script>
 </head>
 <body class="class-declaration-page">
 <script type="text/javascript">var evenRowColor = "even-row-color";
 var oddRowColor = "odd-row-color";
 var tableTab = "table-tab";
 var activeTableTab = "active-table-tab";
 var pathtoroot = "../../../../../";
 loadScripts(document, 'script');</script>
 <noscript>
 <div>JavaScript is disabled on your browser.</div>
 </noscript>
 <div class="flex-box">
 <header role="banner" class="flex-header">
 <nav role="navigation">
 <!-- ========= START OF TOP NAVBAR ======= -->
 <div class="top-nav" id="navbar-top">
 <div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div>
 <div class="about-language"><b>Apache Calcite</b></div>
 <ul id="navbar-top-firstrow" class="nav-list" title="Navigation">
 <li><a href="../../../../../index.html">Overview</a></li>
 <li><a href="package-summary.html">Package</a></li>
 <li class="nav-bar-cell1-rev">Class</li>
 <li><a href="package-tree.html">Tree</a></li>
 <li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
 <li><a href="../../../../../index-all.html">Index</a></li>
 <li><a href="../../../../../help-doc.html#class">Help</a></li>
 </ul>
 </div>
 <div class="sub-nav">
 <div>
 <ul class="sub-nav-list">
 <li>Summary:&nbsp;</li>
 <li>Nested&nbsp;|&nbsp;</li>
 <li><a href="#field-summary">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor-summary">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method-summary">Method</a></li>
 </ul>
 <ul class="sub-nav-list">
 <li>Detail:&nbsp;</li>
 <li><a href="#field-detail">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor-detail">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method-detail">Method</a></li>
 </ul>
 </div>
 <div class="nav-list-search"><label for="search-input">SEARCH:</label>
 <input type="text" id="search-input" value="search" disabled="disabled">
 <input type="reset" id="reset-button" value="reset" disabled="disabled">
 </div>
 </div>
 <!-- ========= END OF TOP NAVBAR ========= -->
 <span class="skip-nav" id="skip-navbar-top"></span></nav>
 </header>
 <div class="flex-content">
 <main role="main">
 <!-- ======== START OF CLASS DATA ======== -->
 <div class="header">
 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.linq4j.tree</a></div>
 <h1 title="Class ClassDeclarationFinder" class="title">Class ClassDeclarationFinder</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"><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">org.apache.calcite.linq4j.tree.Shuttle</a>
 <div class="inheritance">org.apache.calcite.linq4j.tree.ClassDeclarationFinder</div>
 </div>
 </div>
 <section class="class-description" id="class-description">
 <dl class="notes">
 <dt>Direct Known Subclasses:</dt>
 <dd><code><a href="DeterministicCodeOptimizer.html" title="class in org.apache.calcite.linq4j.tree">DeterministicCodeOptimizer</a></code></dd>
 </dl>
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ClassDeclarationFinder</span>
 <span class="extends-implements">extends <a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></span></div>
 <div class="block">Entry point for optimizers that factor out deterministic expressions to
  final static fields.
  Instances of this class should not be reused, so new visitor should be
  created for optimizing a new expression tree.</div>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- =========== FIELD SUMMARY =========== -->
 <li>
 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="caption"><span>Fields</span></div>
 <div class="summary-table three-column-summary">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Field</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>protected final <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;</code></div>
 <div class="col-second even-row-color"><code><a href="#addedDeclarations" class="member-name-link">addedDeclarations</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">The list of new final static fields to be added to the current class.</div>
 </div>
 <div class="col-first odd-row-color"><code>protected final @Nullable <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></code></div>
 <div class="col-second odd-row-color"><code><a href="#parent" class="member-name-link">parent</a></code></div>
 <div class="col-last odd-row-color">&nbsp;</div>
 </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 three-column-summary">
 <div class="table-header col-first">Modifier</div>
 <div class="table-header col-second">Constructor</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>protected </code></div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.calcite.linq4j.tree.ClassDeclarationFinder)" class="member-name-link">ClassDeclarationFinder</a><wbr>(<a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&nbsp;parent)</code></div>
 <div class="col-last even-row-color">
 <div class="block">Creates a child optimizer.</div>
 </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-tab1 method-summary-table-tab4"><code>static <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create()" class="member-name-link">create</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
 <div class="block">Creates visitor that uses default optimizer.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create(java.lang.Class)" class="member-name-link">create</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;? extends <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&gt;&nbsp;optimizingClass)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
 <div class="block">Creates visitor that uses given class as optimizer.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#create(org.apache.calcite.linq4j.function.Function1)" class="member-name-link">create</a><wbr>(<a href="../function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a>&lt;<a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>,<wbr><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&gt;&nbsp;childFactory)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
 <div class="block">Creates visitor that uses given factory to create optimizers.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#findDeclaredExpression(org.apache.calcite.linq4j.tree.Expression)" class="member-name-link">findDeclaredExpression</a><wbr>(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;expression)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Finds if there exists ready for reuse declaration for given expression.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#goDeeper()" class="member-name-link">goDeeper</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates child visitor.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#hasField(java.lang.String)" class="member-name-link">hasField</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 odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Verifies if the variable name is already in use.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isConstant(java.lang.Iterable)" class="member-name-link">isConstant</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;list)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Verifies if all the expressions in given list are  effectively constant.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isConstant(org.apache.calcite.linq4j.tree.Expression)" class="member-name-link">isConstant</a><wbr>(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;expression)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Verifies if the expression is effectively constant.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#learnFinalStaticDeclarations(java.util.List)" class="member-name-link">learnFinalStaticDeclarations</a><wbr>(<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Processes the list of declarations when class expression detected.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#optimizeDeclarations(java.util.List)" class="member-name-link">optimizeDeclarations</a><wbr>(<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Adds new declarations (e.g.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#preVisit(org.apache.calcite.linq4j.tree.ClassDeclaration)" class="member-name-link">preVisit</a><wbr>(<a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a>&nbsp;classDeclaration)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates optimizer local to the newly generated class.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#preVisit(org.apache.calcite.linq4j.tree.NewExpression)" class="member-name-link">preVisit</a><wbr>(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Creates optimizer local to the newly generated anonymous class.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#tryOptimizeNewInstance(org.apache.calcite.linq4j.tree.NewExpression)" class="member-name-link">tryOptimizeNewInstance</a><wbr>(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Optimizes <code>new Type()</code> constructs.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#visit(org.apache.calcite.linq4j.tree.ClassDeclaration,java.util.List)" class="member-name-link">visit</a><wbr>(<a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a>&nbsp;classDeclaration,
  <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#visit(org.apache.calcite.linq4j.tree.NewExpression,java.util.List,java.util.List)" class="member-name-link">visit</a><wbr>(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression,
  <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="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;arguments,
  @Nullable <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
 </div>
 </div>
 </div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-org.apache.calcite.linq4j.tree.Shuttle">Methods inherited from class&nbsp;org.apache.calcite.linq4j.tree.<a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></h3>
 <code><a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.BinaryExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.BlockStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ConditionalStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ConstructorDeclaration)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.DeclarationStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.FieldDeclaration)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ForEachStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ForStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.FunctionExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.GotoStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.IndexExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.MemberExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.MethodCallExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.MethodDeclaration)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.NewArrayExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.TernaryExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ThrowStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.TryStatement)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.TypeBinaryExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.UnaryExpression)">preVisit</a>, <a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.WhileStatement)">preVisit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.BinaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.BlockStatement,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ConditionalStatement,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ConstantExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ConstructorDeclaration,org.apache.calcite.linq4j.tree.BlockStatement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.DeclarationStatement,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.DefaultExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.DynamicExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.FieldDeclaration,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ForEachStatement,org.apache.calcite.linq4j.tree.ParameterExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Statement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ForStatement,java.util.List,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Statement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.FunctionExpression,org.apache.calcite.linq4j.tree.BlockStatement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.GotoStatement,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.IndexExpression,org.apache.calcite.linq4j.tree.Expression,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.InvocationExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.LabelStatement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.LambdaExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ListInitExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.MemberExpression,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.MemberInitExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.MethodCallExpression,org.apache.calcite.linq4j.tree.Expression,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.MethodDeclaration,org.apache.calcite.linq4j.tree.BlockStatement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.NewArrayExpression,int,org.apache.calcite.linq4j.tree.Expression,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ParameterExpression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.SwitchStatement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.TernaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ThrowStatement,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.TryStatement,org.apache.calcite.linq4j.tree.Statement,java.util.List,org.apache.calcite.linq4j.tree.Statement)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.TypeBinaryExpression,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.UnaryExpression,org.apache.calcite.linq4j.tree.Expression)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.WhileStatement,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Statement)">visit</a></code></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">
 <!-- ============ FIELD DETAIL =========== -->
 <li>
 <section class="field-details" id="field-detail">
 <h2>Field Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="parent">
 <h3>parent</h3>
 <div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type">@Nullable <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></span>&nbsp;<span class="element-name">parent</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="addedDeclarations">
 <h3>addedDeclarations</h3>
 <div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;</span>&nbsp;<span class="element-name">addedDeclarations</span></div>
 <div class="block">The list of new final static fields to be added to the current class.</div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ========= 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;(org.apache.calcite.linq4j.tree.ClassDeclarationFinder)">
 <h3>ClassDeclarationFinder</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="element-name">ClassDeclarationFinder</span><wbr><span class="parameters">(<a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&nbsp;parent)</span></div>
 <div class="block">Creates a child optimizer.
  Typically a child is created for each class declaration,
  so each optimizer collects fields for exactly one class.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>parent</code> - parent optimizer</dd>
 </dl>
 </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="create()">
 <h3>create</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></span>&nbsp;<span class="element-name">create</span>()</div>
 <div class="block">Creates visitor that uses default optimizer.</div>
 <dl class="notes">
 <dt>Returns:</dt>
 <dd>optimizing visitor</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="create(java.lang.Class)">
 <h3>create</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></span>&nbsp;<span class="element-name">create</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a>&lt;? extends <a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&gt;&nbsp;optimizingClass)</span></div>
 <div class="block">Creates visitor that uses given class as optimizer.
  The implementation should support (<code>ClassDeclarationFinder</code>)
  constructor.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>optimizingClass</code> - class that implements optimizations</dd>
 <dt>Returns:</dt>
 <dd>optimizing visitor</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="create(org.apache.calcite.linq4j.function.Function1)">
 <h3>create</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></span>&nbsp;<span class="element-name">create</span><wbr><span class="parameters">(<a href="../function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a>&lt;<a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>,<wbr><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a>&gt;&nbsp;childFactory)</span></div>
 <div class="block">Creates visitor that uses given factory to create optimizers.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>childFactory</code> - factory that creates optimizers</dd>
 <dt>Returns:</dt>
 <dd>optimizing visitor</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="preVisit(org.apache.calcite.linq4j.tree.NewExpression)">
 <h3>preVisit</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></span>&nbsp;<span class="element-name">preVisit</span><wbr><span class="parameters">(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression)</span></div>
 <div class="block">Creates optimizer local to the newly generated anonymous class.</div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.NewExpression)">preVisit</a></code>&nbsp;in class&nbsp;<code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd>
 <dt>Parameters:</dt>
 <dd><code>newExpression</code> - expression to optimize</dd>
 <dt>Returns:</dt>
 <dd>nested visitor if anonymous class is given</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="preVisit(org.apache.calcite.linq4j.tree.ClassDeclaration)">
 <h3>preVisit</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></span>&nbsp;<span class="element-name">preVisit</span><wbr><span class="parameters">(<a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a>&nbsp;classDeclaration)</span></div>
 <div class="block">Creates optimizer local to the newly generated class.</div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="Shuttle.html#preVisit(org.apache.calcite.linq4j.tree.ClassDeclaration)">preVisit</a></code>&nbsp;in class&nbsp;<code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd>
 <dt>Parameters:</dt>
 <dd><code>classDeclaration</code> - expression to optimize</dd>
 <dt>Returns:</dt>
 <dd>nested visitor</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="visit(org.apache.calcite.linq4j.tree.NewExpression,java.util.List,java.util.List)">
 <h3>visit</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></span>&nbsp;<span class="element-name">visit</span><wbr><span class="parameters">(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression,
  <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="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;arguments,
  @Nullable <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</span></div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.NewExpression,java.util.List,java.util.List)">visit</a></code>&nbsp;in class&nbsp;<code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="learnFinalStaticDeclarations(java.util.List)">
 <h3>learnFinalStaticDeclarations</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">learnFinalStaticDeclarations</span><wbr><span class="parameters">(<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</span></div>
 <div class="block">Processes the list of declarations when class expression detected.
  Sub-classes might figure out the existing fields for reuse.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>memberDeclarations</code> - list of declarations to process.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="tryOptimizeNewInstance(org.apache.calcite.linq4j.tree.NewExpression)">
 <h3>tryOptimizeNewInstance</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></span>&nbsp;<span class="element-name">tryOptimizeNewInstance</span><wbr><span class="parameters">(<a href="NewExpression.html" title="class in org.apache.calcite.linq4j.tree">NewExpression</a>&nbsp;newExpression)</span></div>
 <div class="block">Optimizes <code>new Type()</code> constructs.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>newExpression</code> - expression to optimize</dd>
 <dt>Returns:</dt>
 <dd>always returns un-optimized expression</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="visit(org.apache.calcite.linq4j.tree.ClassDeclaration,java.util.List)">
 <h3>visit</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a></span>&nbsp;<span class="element-name">visit</span><wbr><span class="parameters">(<a href="ClassDeclaration.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclaration</a>&nbsp;classDeclaration,
  <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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</span></div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ClassDeclaration,java.util.List)">visit</a></code>&nbsp;in class&nbsp;<code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="optimizeDeclarations(java.util.List)">
 <h3>optimizeDeclarations</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;</span>&nbsp;<span class="element-name">optimizeDeclarations</span><wbr><span class="parameters">(<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="MemberDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MemberDeclaration</a>&gt;&nbsp;memberDeclarations)</span></div>
 <div class="block">Adds new declarations (e.g. final static fields) to the list of existing
  ones.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>memberDeclarations</code> - existing list of declarations</dd>
 <dt>Returns:</dt>
 <dd>new list of declarations or the same if no modifications required</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="isConstant(org.apache.calcite.linq4j.tree.Expression)">
 <h3>isConstant</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isConstant</span><wbr><span class="parameters">(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;expression)</span></div>
 <div class="block">Verifies if the expression is effectively constant.
  This method should be overridden in sub-classes.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>expression</code> - expression to test</dd>
 <dt>Returns:</dt>
 <dd>always returns false</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="isConstant(java.lang.Iterable)">
 <h3>isConstant</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isConstant</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;list)</span></div>
 <div class="block">Verifies if all the expressions in given list are  effectively constant.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>list</code> - list of expressions to test</dd>
 <dt>Returns:</dt>
 <dd>true when all the expressions are known to be constant</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="findDeclaredExpression(org.apache.calcite.linq4j.tree.Expression)">
 <h3>findDeclaredExpression</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">@Nullable <a href="ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a></span>&nbsp;<span class="element-name">findDeclaredExpression</span><wbr><span class="parameters">(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;expression)</span></div>
 <div class="block">Finds if there exists ready for reuse declaration for given expression.
  This method should be overridden in sub-classes.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>expression</code> - input expression</dd>
 <dt>Returns:</dt>
 <dd>always returns null</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="hasField(java.lang.String)">
 <h3>hasField</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">hasField</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">Verifies if the variable name is already in use.
  This method should be overridden in sub-classes.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>name</code> - name of the variable to test</dd>
 <dt>Returns:</dt>
 <dd>always returns false</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="goDeeper()">
 <h3>goDeeper</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="ClassDeclarationFinder.html" title="class in org.apache.calcite.linq4j.tree">ClassDeclarationFinder</a></span>&nbsp;<span class="element-name">goDeeper</span>()</div>
 <div class="block">Creates child visitor. It is used to traverse nested class declarations.</div>
 <dl class="notes">
 <dt>Returns:</dt>
 <dd>new <code>Visitor</code> that is used to optimize class declarations</dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </section>
 <!-- ========= END OF CLASS DATA ========= -->
 </main>
 <footer role="contentinfo">
 <hr>
 <p class="legal-copy"><small>Copyright &copy; 2012-2023 Apache Software Foundation. All Rights Reserved.</small></p>
 </footer>
 </div>
 </div>
 </body>
 </html>