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

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <!-- NewPage -->
 <html lang="zh">
 <head>
 <!-- Generated by javadoc -->
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>BlockBuilder (Apache Calcite calcite API)</title>
 <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../../../script.js"></script>
 </head>
 <body>
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
             parent.document.title="BlockBuilder (Apache Calcite calcite API)";
         }
     }
     catch(err) {
     }
 //-->
 var methods = {"i0":10,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10,"i12":10,"i13":10,"i14":10,"i15":10,"i16":10,"i17":10};
 var tabs = {65535:["t0","所有方法"],2:["t2","实例方法"],8:["t4","具体方法"]};
 var altColor = "altColor";
 var rowColor = "rowColor";
 var tableTab = "tableTab";
 var activeTableTab = "activeTableTab";
 </script>
 <noscript>
 <div>您的浏览器已禁用 JavaScript。</div>
 </noscript>
 <!-- ========= START OF TOP NAVBAR ======= -->
 <div class="topNav"><a name="navbar.top">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.top" title="跳过导航链接">跳过导航链接</a></div>
 <a name="navbar.top.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="导航">
 <li><a href="../../../../../overview-summary.html">概览</a></li>
 <li><a href="package-summary.html">程序包</a></li>
 <li class="navBarCell1Rev">类</li>
 <li><a href="package-tree.html">树</a></li>
 <li><a href="../../../../../deprecated-list.html">已过时</a></li>
 <li><a href="../../../../../index-all.html">索引</a></li>
 <li><a href="../../../../../help-doc.html">帮助</a></li>
 </ul>
 <div class="aboutLanguage"><b>Apache Calcite</b></div>
 </div>
 <div class="subNav">
 <ul class="navList">
 <li><a href="../../../../../org/apache/calcite/linq4j/tree/BinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类"><span class="typeNameLink">上一个类</span></a></li>
 <li><a href="../../../../../org/apache/calcite/linq4j/tree/Blocks.html" title="org.apache.calcite.linq4j.tree中的类"><span class="typeNameLink">下一个类</span></a></li>
 </ul>
 <ul class="navList">
 <li><a href="../../../../../index.html?org/apache/calcite/linq4j/tree/BlockBuilder.html" target="_top">框架</a></li>
 <li><a href="BlockBuilder.html" target="_top">无框架</a></li>
 </ul>
 <ul class="navList" id="allclasses_navbar_top">
 <li><a href="../../../../../allclasses-noframe.html">所有类</a></li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_top");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 </div>
 <div>
 <ul class="subNavList">
 <li>概要:&nbsp;</li>
 <li>嵌套&nbsp;|&nbsp;</li>
 <li>字段&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">构造器</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">方法</a></li>
 </ul>
 <ul class="subNavList">
 <li>详细资料:&nbsp;</li>
 <li>字段&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">构造器</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">方法</a></li>
 </ul>
 </div>
 <a name="skip.navbar.top">
 <!--   -->
 </a></div>
 <!-- ========= END OF TOP NAVBAR ========= -->
 <!-- ======== START OF CLASS DATA ======== -->
 <div class="header">
 <div class="subTitle">org.apache.calcite.linq4j.tree</div>
 <h2 title="类 BlockBuilder" class="title">类 BlockBuilder</h2>
 </div>
 <div class="contentContainer">
 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li>
 <li>
 <ul class="inheritance">
 <li>org.apache.calcite.linq4j.tree.BlockBuilder</li>
 </ul>
 </li>
 </ul>
 <div class="description">
 <ul class="blockList">
 <li class="blockList">
 <hr>
 <br>
 <pre>public class <span class="typeNameLabel">BlockBuilder</span>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></pre>
 <div class="block">Builder for <a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类"><code>BlockStatement</code></a>.

  <p>Has methods that help ensure that variable names are unique.</p></div>
 </li>
 </ul>
 </div>
 <div class="summary">
 <ul class="blockList">
 <li class="blockList">
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <ul class="blockList">
 <li class="blockList"><a name="constructor.summary">
 <!--   -->
 </a>
 <h3>构造器概要</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释">
 <caption><span>构造器</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">构造器和说明</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#BlockBuilder--">BlockBuilder</a></span>()</code>
 <div class="block">Creates a non-optimizing BlockBuilder.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#BlockBuilder-boolean-">BlockBuilder</a></span>(boolean&nbsp;optimizing)</code>
 <div class="block">Creates a BlockBuilder.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#BlockBuilder-boolean-org.apache.calcite.linq4j.tree.BlockBuilder-">BlockBuilder</a></span>(boolean&nbsp;optimizing,
             <a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html" title="org.apache.calcite.linq4j.tree中的类">BlockBuilder</a>&nbsp;parent)</code>
 <div class="block">Creates a BlockBuilder.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 <!-- ========== METHOD SUMMARY =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.summary">
 <!--   -->
 </a>
 <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">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</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>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#add-org.apache.calcite.linq4j.tree.Expression-">add</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</code>&nbsp;</td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#add-org.apache.calcite.linq4j.tree.Statement-">add</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Statement.html" title="org.apache.calcite.linq4j.tree中的类">Statement</a>&nbsp;statement)</code>&nbsp;</td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#addExpressionForReuse-org.apache.calcite.linq4j.tree.DeclarationStatement-">addExpressionForReuse</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a>&nbsp;decl)</code>&nbsp;</td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html" title="org.apache.calcite.linq4j.tree中的类">BlockBuilder</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#append-org.apache.calcite.linq4j.tree.Expression-">append</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</code>&nbsp;</td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#append-java.lang.String-org.apache.calcite.linq4j.tree.BlockStatement-">append</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
       <a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a>&nbsp;block)</code>
 <div class="block">Appends a block to a list of statements and returns an expression
  (possibly a variable) that represents the result of the newly added
  block.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#append-java.lang.String-org.apache.calcite.linq4j.tree.BlockStatement-boolean-">append</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
       <a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a>&nbsp;block,
       boolean&nbsp;optimize)</code>
 <div class="block">Appends an expression to a list of statements, optionally optimizing it
  to a variable if it is used more than once.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#append-java.lang.String-org.apache.calcite.linq4j.tree.Expression-">append</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
       <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</code>
 <div class="block">Appends an expression to a list of statements, and returns an expression
  (possibly a variable) that represents the result of the newly added
  block.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#append-java.lang.String-org.apache.calcite.linq4j.tree.Expression-boolean-">append</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
       <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression,
       boolean&nbsp;optimize)</code>
 <div class="block">Appends an expression to a list of statements, optionally optimizing if
  the expression is used more than once.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#appendIfNotNull-java.lang.String-org.apache.calcite.linq4j.tree.Expression-">appendIfNotNull</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</code>
 <div class="block">Appends an expression to a list of statements, if it is not null.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#clear--">clear</a></span>()</code>
 <div class="block">Clears this BlockBuilder.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#createFinishingOptimizeShuttle--">createFinishingOptimizeShuttle</a></span>()</code>
 <div class="block">Creates a final optimization shuttle.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#createOptimizeShuttle--">createOptimizeShuttle</a></span>()</code>
 <div class="block">Creates a shuttle that will be used during block optimization.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#getComputedExpression-org.apache.calcite.linq4j.tree.Expression-">getComputedExpression</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expr)</code>
 <div class="block">Returns the reference to ParameterExpression if given expression was
  already computed and stored to local variable</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#hasVariable-java.lang.String-">hasVariable</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name)</code>&nbsp;</td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#isSafeForReuse-org.apache.calcite.linq4j.tree.DeclarationStatement-">isSafeForReuse</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a>&nbsp;decl)</code>&nbsp;</td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#isSimpleExpression-org.apache.calcite.linq4j.tree.Expression-">isSimpleExpression</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expr)</code>
 <div class="block">Checks if expression is simple enough to always inline at zero cost.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#newName-java.lang.String-">newName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;suggestion)</code>
 <div class="block">Creates a name for a new variable, unique within this block.</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html#toBlock--">toBlock</a></span>()</code>
 <div class="block">Returns a block consisting of the current list of statements.</div>
 </td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
 <!--   -->
 </a>
 <h3>从类继承的方法&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3>
 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </div>
 <div class="details">
 <ul class="blockList">
 <li class="blockList">
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <ul class="blockList">
 <li class="blockList"><a name="constructor.detail">
 <!--   -->
 </a>
 <h3>构造器详细资料</h3>
 <a name="BlockBuilder--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>BlockBuilder</h4>
 <pre>public&nbsp;BlockBuilder()</pre>
 <div class="block">Creates a non-optimizing BlockBuilder.</div>
 </li>
 </ul>
 <a name="BlockBuilder-boolean-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>BlockBuilder</h4>
 <pre>public&nbsp;BlockBuilder(boolean&nbsp;optimizing)</pre>
 <div class="block">Creates a BlockBuilder.</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>optimizing</code> - Whether to eliminate common sub-expressions</dd>
 </dl>
 </li>
 </ul>
 <a name="BlockBuilder-boolean-org.apache.calcite.linq4j.tree.BlockBuilder-">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>BlockBuilder</h4>
 <pre>public&nbsp;BlockBuilder(boolean&nbsp;optimizing,
                     <a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html" title="org.apache.calcite.linq4j.tree中的类">BlockBuilder</a>&nbsp;parent)</pre>
 <div class="block">Creates a BlockBuilder.</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>optimizing</code> - Whether to eliminate common sub-expressions</dd>
 </dl>
 </li>
 </ul>
 </li>
 </ul>
 <!-- ============ METHOD DETAIL ========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.detail">
 <!--   -->
 </a>
 <h3>方法详细资料</h3>
 <a name="clear--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>clear</h4>
 <pre>public&nbsp;void&nbsp;clear()</pre>
 <div class="block">Clears this BlockBuilder.</div>
 </li>
 </ul>
 <a name="append-java.lang.String-org.apache.calcite.linq4j.tree.BlockStatement-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>append</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;append(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                          <a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a>&nbsp;block)</pre>
 <div class="block">Appends a block to a list of statements and returns an expression
  (possibly a variable) that represents the result of the newly added
  block.</div>
 </li>
 </ul>
 <a name="append-java.lang.String-org.apache.calcite.linq4j.tree.BlockStatement-boolean-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>append</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;append(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                          <a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a>&nbsp;block,
                          boolean&nbsp;optimize)</pre>
 <div class="block">Appends an expression to a list of statements, optionally optimizing it
  to a variable if it is used more than once.</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>name</code> - Suggested variable name</dd>
 <dd><code>block</code> - Expression</dd>
 <dd><code>optimize</code> - Whether to try to optimize by assigning the expression to
  a variable. Do not do this if the expression has
  side-effects or a time-dependent value.</dd>
 </dl>
 </li>
 </ul>
 <a name="append-java.lang.String-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>append</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;append(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                          <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</pre>
 <div class="block">Appends an expression to a list of statements, and returns an expression
  (possibly a variable) that represents the result of the newly added
  block.</div>
 </li>
 </ul>
 <a name="appendIfNotNull-java.lang.String-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>appendIfNotNull</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;appendIfNotNull(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                                   <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</pre>
 <div class="block">Appends an expression to a list of statements, if it is not null.</div>
 </li>
 </ul>
 <a name="append-java.lang.String-org.apache.calcite.linq4j.tree.Expression-boolean-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>append</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;append(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name,
                          <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression,
                          boolean&nbsp;optimize)</pre>
 <div class="block">Appends an expression to a list of statements, optionally optimizing if
  the expression is used more than once.</div>
 </li>
 </ul>
 <a name="isSimpleExpression-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>isSimpleExpression</h4>
 <pre>protected&nbsp;boolean&nbsp;isSimpleExpression(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expr)</pre>
 <div class="block">Checks if expression is simple enough to always inline at zero cost.</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>expr</code> - expression to test</dd>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>true when given expression is safe to always inline</dd>
 </dl>
 </li>
 </ul>
 <a name="isSafeForReuse-org.apache.calcite.linq4j.tree.DeclarationStatement-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>isSafeForReuse</h4>
 <pre>protected&nbsp;boolean&nbsp;isSafeForReuse(<a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a>&nbsp;decl)</pre>
 </li>
 </ul>
 <a name="addExpressionForReuse-org.apache.calcite.linq4j.tree.DeclarationStatement-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>addExpressionForReuse</h4>
 <pre>protected&nbsp;void&nbsp;addExpressionForReuse(<a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a>&nbsp;decl)</pre>
 </li>
 </ul>
 <a name="getComputedExpression-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getComputedExpression</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/DeclarationStatement.html" title="org.apache.calcite.linq4j.tree中的类">DeclarationStatement</a>&nbsp;getComputedExpression(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expr)</pre>
 <div class="block">Returns the reference to ParameterExpression if given expression was
  already computed and stored to local variable</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>expr</code> - expression to test</dd>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>existing ParameterExpression or null</dd>
 </dl>
 </li>
 </ul>
 <a name="add-org.apache.calcite.linq4j.tree.Statement-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>add</h4>
 <pre>public&nbsp;void&nbsp;add(<a href="../../../../../org/apache/calcite/linq4j/tree/Statement.html" title="org.apache.calcite.linq4j.tree中的类">Statement</a>&nbsp;statement)</pre>
 </li>
 </ul>
 <a name="add-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>add</h4>
 <pre>public&nbsp;void&nbsp;add(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</pre>
 </li>
 </ul>
 <a name="toBlock--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>toBlock</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/BlockStatement.html" title="org.apache.calcite.linq4j.tree中的类">BlockStatement</a>&nbsp;toBlock()</pre>
 <div class="block">Returns a block consisting of the current list of statements.</div>
 </li>
 </ul>
 <a name="createOptimizeShuttle--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>createOptimizeShuttle</h4>
 <pre>protected&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a>&nbsp;createOptimizeShuttle()</pre>
 <div class="block">Creates a shuttle that will be used during block optimization.
  Sub-classes might provide more specific optimizations (e.g. partial
  evaluation).</div>
 <dl>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>shuttle used to optimize the statements when converting to block</dd>
 </dl>
 </li>
 </ul>
 <a name="createFinishingOptimizeShuttle--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>createFinishingOptimizeShuttle</h4>
 <pre>protected&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a>&nbsp;createFinishingOptimizeShuttle()</pre>
 <div class="block">Creates a final optimization shuttle.
  Typically, the visitor will factor out constant expressions.</div>
 <dl>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>shuttle that is used to finalize the optimization</dd>
 </dl>
 </li>
 </ul>
 <a name="newName-java.lang.String-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>newName</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;newName(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;suggestion)</pre>
 <div class="block">Creates a name for a new variable, unique within this block.</div>
 </li>
 </ul>
 <a name="hasVariable-java.lang.String-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>hasVariable</h4>
 <pre>public&nbsp;boolean&nbsp;hasVariable(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;name)</pre>
 </li>
 </ul>
 <a name="append-org.apache.calcite.linq4j.tree.Expression-">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>append</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/calcite/linq4j/tree/BlockBuilder.html" title="org.apache.calcite.linq4j.tree中的类">BlockBuilder</a>&nbsp;append(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>&nbsp;expression)</pre>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </div>
 </div>
 <!-- ========= END OF CLASS DATA ========= -->
 <!-- ======= START OF BOTTOM NAVBAR ====== -->
 <div class="bottomNav"><a name="navbar.bottom">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.bottom" title="跳过导航链接">跳过导航链接</a></div>
 <a name="navbar.bottom.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="导航">
 <li><a href="../../../../../overview-summary.html">概览</a></li>
 <li><a href="package-summary.html">程序包</a></li>
 <li class="navBarCell1Rev">类</li>
 <li><a href="package-tree.html">树</a></li>
 <li><a href="../../../../../deprecated-list.html">已过时</a></li>
 <li><a href="../../../../../index-all.html">索引</a></li>
 <li><a href="../../../../../help-doc.html">帮助</a></li>
 </ul>
 <div class="aboutLanguage"><b>Apache Calcite</b></div>
 </div>
 <div class="subNav">
 <ul class="navList">
 <li><a href="../../../../../org/apache/calcite/linq4j/tree/BinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类"><span class="typeNameLink">上一个类</span></a></li>
 <li><a href="../../../../../org/apache/calcite/linq4j/tree/Blocks.html" title="org.apache.calcite.linq4j.tree中的类"><span class="typeNameLink">下一个类</span></a></li>
 </ul>
 <ul class="navList">
 <li><a href="../../../../../index.html?org/apache/calcite/linq4j/tree/BlockBuilder.html" target="_top">框架</a></li>
 <li><a href="BlockBuilder.html" target="_top">无框架</a></li>
 </ul>
 <ul class="navList" id="allclasses_navbar_bottom">
 <li><a href="../../../../../allclasses-noframe.html">所有类</a></li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_bottom");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 </div>
 <div>
 <ul class="subNavList">
 <li>概要:&nbsp;</li>
 <li>嵌套&nbsp;|&nbsp;</li>
 <li>字段&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">构造器</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">方法</a></li>
 </ul>
 <ul class="subNavList">
 <li>详细资料:&nbsp;</li>
 <li>字段&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">构造器</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">方法</a></li>
 </ul>
 </div>
 <a name="skip.navbar.bottom">
 <!--   -->
 </a></div>
 <!-- ======== END OF BOTTOM NAVBAR ======= -->
 <p class="legalCopy"><small>Copyright &copy; 2012-2020 Apache Software Foundation. All Rights Reserved.</small></p>
 </body>
 </html>