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| <h2 title="类 DeterministicCodeOptimizer" class="title">类 DeterministicCodeOptimizer</h2> |
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| <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"> |
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| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">org.apache.calcite.linq4j.tree.ClassDeclarationFinder</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.linq4j.tree.DeterministicCodeOptimizer</li> |
| </ul> |
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| <br> |
| <pre>public class <span class="typeNameLabel">DeterministicCodeOptimizer</span> |
| extends <a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></pre> |
| <div class="block">Factors 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> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>字段概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释"> |
| <caption><span>字段</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">字段和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="java.lang中的类或接口">Boolean</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#constants">constants</a></span></code> |
| <div class="block">The map contains known to be effectively-final expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>,<a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#dedup">dedup</a></span></code> |
| <div class="block">The map that de-duplicates expressions, so the same expressions may reuse |
| the same final static fields.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<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>,<a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#fieldsByName">fieldsByName</a></span></code> |
| <div class="block">The map of all the added final static fields.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.linq4j.tree.ClassDeclarationFinder"> |
| <!-- --> |
| </a> |
| <h3>从类继承的字段 org.apache.calcite.linq4j.tree.<a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></h3> |
| <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#addedDeclarations">addedDeclarations</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#parent">parent</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ======== 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"> </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/DeterministicCodeOptimizer.html#DeterministicCodeOptimizer-org.apache.calcite.linq4j.tree.ClassDeclarationFinder-">DeterministicCodeOptimizer</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a> parent)</code> |
| <div class="block">Creates a child optimizer.</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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#allMethodsDeterministic-java.lang.Class-">allMethodsDeterministic</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a> klass)</code> |
| <div class="block">Checks if all the methods in given class are deterministic (i.e. return |
| the same value given the same inputs)</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected <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/DeterministicCodeOptimizer.html#createField-org.apache.calcite.linq4j.tree.Expression-">createField</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> |
| <div class="block">Creates final static field to hold the given expression.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#findDeclaredExpression-org.apache.calcite.linq4j.tree.Expression-">findDeclaredExpression</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> |
| <div class="block">Finds if there exists ready for reuse declaration for given expression.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html" title="org.apache.calcite.linq4j.tree中的类">DeterministicCodeOptimizer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#goDeeper--">goDeeper</a></span>()</code> |
| <div class="block">Creates child visitor.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#hasField-java.lang.String-">hasField</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> name)</code> |
| <div class="block">Verifies if the variable name is already in use.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected <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/DeterministicCodeOptimizer.html#inventFieldName-org.apache.calcite.linq4j.tree.Expression-">inventFieldName</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> |
| <div class="block">Generates field name to store given expression.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#isConstant-org.apache.calcite.linq4j.tree.Expression-">isConstant</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> |
| <div class="block">Verifies if the expression is effectively constant.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#isConstructorDeterministic-org.apache.calcite.linq4j.tree.NewExpression-">isConstructorDeterministic</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/NewExpression.html" title="org.apache.calcite.linq4j.tree中的类">NewExpression</a> newExpression)</code> |
| <div class="block">Checks if new instance creation can be reused.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#isMethodDeterministic-java.lang.reflect.Method-">isMethodDeterministic</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="java.lang.reflect中的类或接口">Method</a> method)</code> |
| <div class="block">Checks if given method is deterministic (i.e. returns the same output |
| given the same inputs).</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#learnFinalStaticDeclarations-java.util.List-">learnFinalStaticDeclarations</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/linq4j/tree/MemberDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">MemberDeclaration</a>> memberDeclarations)</code> |
| <div class="block">Processes the list of declarations and learns final static ones as |
| effectively constant.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>protected <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/DeterministicCodeOptimizer.html#tryOptimizeMethodCall-org.apache.calcite.linq4j.tree.MethodCallExpression-">tryOptimizeMethodCall</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/MethodCallExpression.html" title="org.apache.calcite.linq4j.tree中的类">MethodCallExpression</a> methodCallExpression)</code> |
| <div class="block">Optimized method call, possibly converting it to final static field.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>protected <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/DeterministicCodeOptimizer.html#tryOptimizeNewInstance-org.apache.calcite.linq4j.tree.NewExpression-">tryOptimizeNewInstance</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/NewExpression.html" title="org.apache.calcite.linq4j.tree中的类">NewExpression</a> newExpression)</code> |
| <div class="block">Optimizes <code>new Type()</code> constructs,</div> |
| </td> |
| </tr> |
| <tr id="i12" 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/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.BinaryExpression-org.apache.calcite.linq4j.tree.Expression-org.apache.calcite.linq4j.tree.Expression-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/BinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">BinaryExpression</a> binaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression0, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression1)</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/MemberDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">MemberDeclaration</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.FieldDeclaration-org.apache.calcite.linq4j.tree.Expression-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/FieldDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">FieldDeclaration</a> fieldDeclaration, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> initializer)</code> </td> |
| </tr> |
| <tr id="i14" 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/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.MemberExpression-org.apache.calcite.linq4j.tree.Expression-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/MemberExpression.html" title="org.apache.calcite.linq4j.tree中的类">MemberExpression</a> memberExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> </td> |
| </tr> |
| <tr id="i15" 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/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.MethodCallExpression-org.apache.calcite.linq4j.tree.Expression-java.util.List-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/MethodCallExpression.html" title="org.apache.calcite.linq4j.tree中的类">MethodCallExpression</a> methodCallExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> targetExpression, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>> expressions)</code> </td> |
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| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.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></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/TernaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">TernaryExpression</a> ternaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression0, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression1, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression2)</code> </td> |
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| <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/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.TypeBinaryExpression-org.apache.calcite.linq4j.tree.Expression-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/TypeBinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">TypeBinaryExpression</a> typeBinaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</code> </td> |
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| <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/DeterministicCodeOptimizer.html#visit-org.apache.calcite.linq4j.tree.UnaryExpression-org.apache.calcite.linq4j.tree.Expression-">visit</a></span>(<a href="../../../../../org/apache/calcite/linq4j/tree/UnaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">UnaryExpression</a> unaryExpression, |
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| <code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.BinaryExpression-">preVisit</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.BlockStatement-">preVisit</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.ConditionalStatement-">preVisit</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.ConstructorDeclaration-">preVisit</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.DeclarationStatement-">preVisit</a>, <a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#preVisit-org.apache.calcite.linq4j.tree.FieldDeclaration-">preVisit</a>, <a 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href="../../../../../org/apache/calcite/linq4j/tree/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="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#visit-org.apache.calcite.linq4j.tree.WhileStatement-org.apache.calcite.linq4j.tree.Expression-org.apache.calcite.linq4j.tree.Statement-">visit</a></code></li> |
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| <h3>从类继承的方法 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> |
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| </div> |
| <div class="details"> |
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| <h3>字段详细资料</h3> |
| <a name="constants"> |
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| <h4>constants</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="java.lang中的类或接口">Boolean</a>> constants</pre> |
| <div class="block">The map contains known to be effectively-final expression. |
| The map uses identity equality. |
| Typically the key is <code>ParameterExpression</code>, however there might be |
| non-factored to final field expression that is known to be constant. |
| For instance, cast expression will not be factored to a field, |
| but we still need to track its constant status.</div> |
| </li> |
| </ul> |
| <a name="dedup"> |
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| </a> |
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| <h4>dedup</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>,<a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a>> dedup</pre> |
| <div class="block">The map that de-duplicates expressions, so the same expressions may reuse |
| the same final static fields.</div> |
| </li> |
| </ul> |
| <a name="fieldsByName"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>fieldsByName</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="java.util中的类或接口">Map</a><<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>,<a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a>> fieldsByName</pre> |
| <div class="block">The map of all the added final static fields. Allows to identify if the |
| name is occupied or not.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| </a> |
| <h3>构造器详细资料</h3> |
| <a name="DeterministicCodeOptimizer-org.apache.calcite.linq4j.tree.ClassDeclarationFinder-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>DeterministicCodeOptimizer</h4> |
| <pre>public DeterministicCodeOptimizer(<a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a> parent)</pre> |
| <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> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>parent</code> - parent optimizer</dd> |
| </dl> |
| </li> |
| </ul> |
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| </ul> |
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| <h3>方法详细资料</h3> |
| <a name="tryOptimizeNewInstance-org.apache.calcite.linq4j.tree.NewExpression-"> |
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| <h4>tryOptimizeNewInstance</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> tryOptimizeNewInstance(<a href="../../../../../org/apache/calcite/linq4j/tree/NewExpression.html" title="org.apache.calcite.linq4j.tree中的类">NewExpression</a> newExpression)</pre> |
| <div class="block">Optimizes <code>new Type()</code> constructs,</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#tryOptimizeNewInstance-org.apache.calcite.linq4j.tree.NewExpression-">tryOptimizeNewInstance</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>newExpression</code> - expression to optimize</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>optimized expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="visit-org.apache.calcite.linq4j.tree.BinaryExpression-org.apache.calcite.linq4j.tree.Expression-org.apache.calcite.linq4j.tree.Expression-"> |
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| <h4>visit</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> visit(<a href="../../../../../org/apache/calcite/linq4j/tree/BinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">BinaryExpression</a> binaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression0, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression1)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#visit-org.apache.calcite.linq4j.tree.BinaryExpression-org.apache.calcite.linq4j.tree.Expression-org.apache.calcite.linq4j.tree.Expression-">visit</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="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-"> |
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| <h4>visit</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> visit(<a href="../../../../../org/apache/calcite/linq4j/tree/TernaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">TernaryExpression</a> ternaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression0, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression1, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression2)</pre> |
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| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
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| <pre>public <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> visit(<a href="../../../../../org/apache/calcite/linq4j/tree/TypeBinaryExpression.html" title="org.apache.calcite.linq4j.tree中的类">TypeBinaryExpression</a> typeBinaryExpression, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
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| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#visit-org.apache.calcite.linq4j.tree.TypeBinaryExpression-org.apache.calcite.linq4j.tree.Expression-">visit</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></dd> |
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| <pre>protected <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> tryOptimizeMethodCall(<a href="../../../../../org/apache/calcite/linq4j/tree/MethodCallExpression.html" title="org.apache.calcite.linq4j.tree中的类">MethodCallExpression</a> methodCallExpression)</pre> |
| <div class="block">Optimized method call, possibly converting it to final static field.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>methodCallExpression</code> - method call to optimize</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>optimized expression</dd> |
| </dl> |
| </li> |
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| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> targetExpression, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a>> expressions)</pre> |
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| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
| <dl> |
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| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#visit-org.apache.calcite.linq4j.tree.MemberExpression-org.apache.calcite.linq4j.tree.Expression-">visit</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></dd> |
| </dl> |
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| <pre>public <a href="../../../../../org/apache/calcite/linq4j/tree/MemberDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">MemberDeclaration</a> visit(<a href="../../../../../org/apache/calcite/linq4j/tree/FieldDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">FieldDeclaration</a> fieldDeclaration, |
| <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> initializer)</pre> |
| <dl> |
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| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html#visit-org.apache.calcite.linq4j.tree.FieldDeclaration-org.apache.calcite.linq4j.tree.Expression-">visit</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/Shuttle.html" title="org.apache.calcite.linq4j.tree中的类">Shuttle</a></code></dd> |
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| <pre>protected void learnFinalStaticDeclarations(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/linq4j/tree/MemberDeclaration.html" title="org.apache.calcite.linq4j.tree中的类">MemberDeclaration</a>> memberDeclarations)</pre> |
| <div class="block">Processes the list of declarations and learns final static ones as |
| effectively constant.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#learnFinalStaticDeclarations-java.util.List-">learnFinalStaticDeclarations</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>memberDeclarations</code> - list of declarations to search finals from</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findDeclaredExpression-org.apache.calcite.linq4j.tree.Expression-"> |
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| <h4>findDeclaredExpression</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/linq4j/tree/ParameterExpression.html" title="org.apache.calcite.linq4j.tree中的类">ParameterExpression</a> findDeclaredExpression(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
| <div class="block">Finds if there exists ready for reuse declaration for given expression.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#findDeclaredExpression-org.apache.calcite.linq4j.tree.Expression-">findDeclaredExpression</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>expression</code> - input expression</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>parameter of the already existing declaration, or null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createField-org.apache.calcite.linq4j.tree.Expression-"> |
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| <h4>createField</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> createField(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
| <div class="block">Creates final static field to hold the given expression. |
| The method might reuse existing declarations if appropriate.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>expression</code> - expression to store in final field</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>expression for the given input expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="inventFieldName-org.apache.calcite.linq4j.tree.Expression-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>inventFieldName</h4> |
| <pre>protected <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> inventFieldName(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
| <div class="block">Generates field name to store given expression. |
| The expression is converted to string and all the non-ascii/numeric |
| characters are replaced with underscores and <code>"_$L4J$C$"</code> suffix is |
| added to avoid conflicts with other variables. |
| When multiple variables are mangled to the same name, |
| counter is used to avoid conflicts.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>expression</code> - input expression</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>unique name to store given expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isConstant-org.apache.calcite.linq4j.tree.Expression-"> |
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| <pre>protected boolean isConstant(<a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="org.apache.calcite.linq4j.tree中的类">Expression</a> expression)</pre> |
| <div class="block">Verifies if the expression is effectively constant. |
| It is assumed the expression is simple (e.g. <code>ConstantExpression</code> or |
| <code>ParameterExpression</code>). |
| The method verifies parent chain since the expression might be defined |
| in enclosing class.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#isConstant-org.apache.calcite.linq4j.tree.Expression-">isConstant</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>expression</code> - expression to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true when the expression is known to be constant</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isMethodDeterministic-java.lang.reflect.Method-"> |
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| <h4>isMethodDeterministic</h4> |
| <pre>protected boolean isMethodDeterministic(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Method.html?is-external=true" title="java.lang.reflect中的类或接口">Method</a> method)</pre> |
| <div class="block">Checks if given method is deterministic (i.e. returns the same output |
| given the same inputs).</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>method</code> - method to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true when the method is deterministic</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isConstructorDeterministic-org.apache.calcite.linq4j.tree.NewExpression-"> |
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| <h4>isConstructorDeterministic</h4> |
| <pre>protected boolean isConstructorDeterministic(<a href="../../../../../org/apache/calcite/linq4j/tree/NewExpression.html" title="org.apache.calcite.linq4j.tree中的类">NewExpression</a> newExpression)</pre> |
| <div class="block">Checks if new instance creation can be reused. For instance <code>new |
| BigInteger("42")</code> is effectively final and can be reused.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>newExpression</code> - method to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true when the method is deterministic</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="allMethodsDeterministic-java.lang.Class-"> |
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| <h4>allMethodsDeterministic</h4> |
| <pre>protected boolean allMethodsDeterministic(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a> klass)</pre> |
| <div class="block">Checks if all the methods in given class are deterministic (i.e. return |
| the same value given the same inputs)</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>klass</code> - class to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true when all the methods including constructors are deterministic</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hasField-java.lang.String-"> |
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| <h4>hasField</h4> |
| <pre>protected boolean hasField(<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> name)</pre> |
| <div class="block">Verifies if the variable name is already in use. |
| Only the variables that are explicitly added to <code>fieldsByName</code> are |
| verified. The method verifies parent chain.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#hasField-java.lang.String-">hasField</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>name</code> - name of the variable to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true if the name is used by one of static final fields</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="goDeeper--"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>goDeeper</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/linq4j/tree/DeterministicCodeOptimizer.html" title="org.apache.calcite.linq4j.tree中的类">DeterministicCodeOptimizer</a> goDeeper()</pre> |
| <div class="block">Creates child visitor. It is used to traverse nested class declarations.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html#goDeeper--">goDeeper</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/linq4j/tree/ClassDeclarationFinder.html" title="org.apache.calcite.linq4j.tree中的类">ClassDeclarationFinder</a></code></dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>new Visitor that is used to optimize class declarations</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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