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| <li>Summary: </li> |
| <li>Nested | </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.linq4j.tree</a></div> |
| <h2 title="Class OptimizeShuttle" class="title">Class OptimizeShuttle</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">org.apache.calcite.linq4j.tree.Shuttle</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.linq4j.tree.OptimizeShuttle</li> |
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| <pre>public class <span class="typeNameLabel">OptimizeShuttle</span> |
| extends <a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></pre> |
| <div class="block">Shuttle that optimizes expressions. |
| |
| <p>The optimizations are essential, not mere tweaks. Without |
| optimization, expressions such as <code>false == null</code> will be left in, |
| which are invalid to Janino (because it does not automatically box |
| primitives).</div> |
| </li> |
| </ul> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static java.lang.reflect.Method</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOOLEAN_VALUEOF_BOOL">BOOLEAN_VALUEOF_BOOL</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="MemberExpression.html" title="class in org.apache.calcite.linq4j.tree">MemberExpression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOXED_FALSE_EXPR">BOXED_FALSE_EXPR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="MemberExpression.html" title="class in org.apache.calcite.linq4j.tree">MemberExpression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOXED_TRUE_EXPR">BOXED_TRUE_EXPR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="Statement.html" title="class in org.apache.calcite.linq4j.tree">Statement</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#EMPTY_STATEMENT">EMPTY_STATEMENT</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="ConstantExpression.html" title="class in org.apache.calcite.linq4j.tree">ConstantExpression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#FALSE_EXPR">FALSE_EXPR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static java.util.Set<java.lang.reflect.Method></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#KNOWN_NON_NULL_METHODS">KNOWN_NON_NULL_METHODS</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static java.util.Map<<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a>,​<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NOT_BINARY_COMPLEMENT">NOT_BINARY_COMPLEMENT</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="ConstantExpression.html" title="class in org.apache.calcite.linq4j.tree">ConstantExpression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TRUE_EXPR">TRUE_EXPR</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.summary"> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">OptimizeShuttle</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <li class="blockList"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>private static void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addComplement(org.apache.calcite.linq4j.tree.ExpressionType,org.apache.calcite.linq4j.tree.ExpressionType)">addComplement</a></span>​(<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a> eq, |
| <a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a> ne)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private static java.lang.Boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#always(org.apache.calcite.linq4j.tree.Expression)">always</a></span>​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> x)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether an expression always evaluates to true or false.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#eq(org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)">eq</a></span>​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> a, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> b)</code></th> |
| <td class="colLast"> |
| <div class="block">Treats two expressions equal even if they represent different null types</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isConstantNull(org.apache.calcite.linq4j.tree.Expression)">isConstantNull</a></span>​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isKnownNotNull(org.apache.calcite.linq4j.tree.Expression)">isKnownNotNull</a></span>​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether an expression always returns a non-null result.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.calcite.linq4j.tree.BinaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)">visit</a></span>​(<a href="BinaryExpression.html" title="class in org.apache.calcite.linq4j.tree">BinaryExpression</a> binary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="Statement.html" title="class in org.apache.calcite.linq4j.tree">Statement</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.calcite.linq4j.tree.ConditionalStatement,java.util.List)">visit</a></span>​(<a href="ConditionalStatement.html" title="class in org.apache.calcite.linq4j.tree">ConditionalStatement</a> conditionalStatement, |
| java.util.List<<a href="Node.html" title="interface in org.apache.calcite.linq4j.tree">Node</a>> list)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.calcite.linq4j.tree.MethodCallExpression,org.apache.calcite.linq4j.tree.Expression,java.util.List)">visit</a></span>​(<a href="MethodCallExpression.html" title="class in org.apache.calcite.linq4j.tree">MethodCallExpression</a> methodCallExpression, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> targetExpression, |
| java.util.List<<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>> expressions)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#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="TernaryExpression.html" title="class in org.apache.calcite.linq4j.tree">TernaryExpression</a> ternary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression2)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.calcite.linq4j.tree.UnaryExpression,org.apache.calcite.linq4j.tree.Expression)">visit</a></span>​(<a href="UnaryExpression.html" title="class in org.apache.calcite.linq4j.tree">UnaryExpression</a> unaryExpression, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>private <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit0(org.apache.calcite.linq4j.tree.BinaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)">visit0</a></span>​(<a href="BinaryExpression.html" title="class in org.apache.calcite.linq4j.tree">BinaryExpression</a> binary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.linq4j.tree.Shuttle"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class 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.ClassDeclaration)">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.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.NewExpression)">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.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.BlockStatement,java.util.List)">visit</a>, <a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ClassDeclaration,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 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href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.TryStatement)">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.WhileStatement,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Statement)">visit</a></code></li> |
| </ul> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a id="FALSE_EXPR"> |
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| <h4>FALSE_EXPR</h4> |
| <pre>public static final <a href="ConstantExpression.html" title="class in org.apache.calcite.linq4j.tree">ConstantExpression</a> FALSE_EXPR</pre> |
| </li> |
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| <a id="TRUE_EXPR"> |
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| <h4>TRUE_EXPR</h4> |
| <pre>public static final <a href="ConstantExpression.html" title="class in org.apache.calcite.linq4j.tree">ConstantExpression</a> TRUE_EXPR</pre> |
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| <a id="BOXED_FALSE_EXPR"> |
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| <pre>public static final <a href="MemberExpression.html" title="class in org.apache.calcite.linq4j.tree">MemberExpression</a> BOXED_FALSE_EXPR</pre> |
| </li> |
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| <h4>BOXED_TRUE_EXPR</h4> |
| <pre>public static final <a href="MemberExpression.html" title="class in org.apache.calcite.linq4j.tree">MemberExpression</a> BOXED_TRUE_EXPR</pre> |
| </li> |
| </ul> |
| <a id="EMPTY_STATEMENT"> |
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| </a> |
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| <h4>EMPTY_STATEMENT</h4> |
| <pre>public static final <a href="Statement.html" title="class in org.apache.calcite.linq4j.tree">Statement</a> EMPTY_STATEMENT</pre> |
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| </a> |
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| <h4>KNOWN_NON_NULL_METHODS</h4> |
| <pre>private static final java.util.Set<java.lang.reflect.Method> KNOWN_NON_NULL_METHODS</pre> |
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| <pre>private static final java.util.Map<<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a>,​<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a>> NOT_BINARY_COMPLEMENT</pre> |
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| <h4>BOOLEAN_VALUEOF_BOOL</h4> |
| <pre>private static final java.lang.reflect.Method BOOLEAN_VALUEOF_BOOL</pre> |
| </li> |
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| </ul> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h4>OptimizeShuttle</h4> |
| <pre>public OptimizeShuttle()</pre> |
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| <a id="addComplement(org.apache.calcite.linq4j.tree.ExpressionType,org.apache.calcite.linq4j.tree.ExpressionType)"> |
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| <h4>addComplement</h4> |
| <pre class="methodSignature">private static void addComplement​(<a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a> eq, |
| <a href="ExpressionType.html" title="enum in org.apache.calcite.linq4j.tree">ExpressionType</a> ne)</pre> |
| </li> |
| </ul> |
| <a id="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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| <pre class="methodSignature">public <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> visit​(<a href="TernaryExpression.html" title="class in org.apache.calcite.linq4j.tree">TernaryExpression</a> ternary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression2)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><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></code> in class <code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visit(org.apache.calcite.linq4j.tree.BinaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visit</h4> |
| <pre class="methodSignature">public <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> visit​(<a href="BinaryExpression.html" title="class in org.apache.calcite.linq4j.tree">BinaryExpression</a> binary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><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></code> in class <code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visit0(org.apache.calcite.linq4j.tree.BinaryExpression,org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)"> |
| <!-- --> |
| </a> |
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| <h4>visit0</h4> |
| <pre class="methodSignature">private <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> visit0​(<a href="BinaryExpression.html" title="class in org.apache.calcite.linq4j.tree">BinaryExpression</a> binary, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression0, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression1)</pre> |
| </li> |
| </ul> |
| <a id="visit(org.apache.calcite.linq4j.tree.UnaryExpression,org.apache.calcite.linq4j.tree.Expression)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visit</h4> |
| <pre class="methodSignature">public <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> visit​(<a href="UnaryExpression.html" title="class in org.apache.calcite.linq4j.tree">UnaryExpression</a> unaryExpression, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.UnaryExpression,org.apache.calcite.linq4j.tree.Expression)">visit</a></code> in class <code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visit(org.apache.calcite.linq4j.tree.ConditionalStatement,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visit</h4> |
| <pre class="methodSignature">public <a href="Statement.html" title="class in org.apache.calcite.linq4j.tree">Statement</a> visit​(<a href="ConditionalStatement.html" title="class in org.apache.calcite.linq4j.tree">ConditionalStatement</a> conditionalStatement, |
| java.util.List<<a href="Node.html" title="interface in org.apache.calcite.linq4j.tree">Node</a>> list)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.ConditionalStatement,java.util.List)">visit</a></code> in class <code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="visit(org.apache.calcite.linq4j.tree.MethodCallExpression,org.apache.calcite.linq4j.tree.Expression,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>visit</h4> |
| <pre class="methodSignature">public <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> visit​(<a href="MethodCallExpression.html" title="class in org.apache.calcite.linq4j.tree">MethodCallExpression</a> methodCallExpression, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> targetExpression, |
| java.util.List<<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>> expressions)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="Shuttle.html#visit(org.apache.calcite.linq4j.tree.MethodCallExpression,org.apache.calcite.linq4j.tree.Expression,java.util.List)">visit</a></code> in class <code><a href="Shuttle.html" title="class in org.apache.calcite.linq4j.tree">Shuttle</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isConstantNull(org.apache.calcite.linq4j.tree.Expression)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isConstantNull</h4> |
| <pre class="methodSignature">private boolean isConstantNull​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</pre> |
| </li> |
| </ul> |
| <a id="always(org.apache.calcite.linq4j.tree.Expression)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>always</h4> |
| <pre class="methodSignature">private static java.lang.Boolean always​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> x)</pre> |
| <div class="block">Returns whether an expression always evaluates to true or false. |
| Assumes that expression has already been optimized.</div> |
| </li> |
| </ul> |
| <a id="isKnownNotNull(org.apache.calcite.linq4j.tree.Expression)"> |
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| </a> |
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| <h4>isKnownNotNull</h4> |
| <pre class="methodSignature">protected boolean isKnownNotNull​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression)</pre> |
| <div class="block">Returns whether an expression always returns a non-null result. |
| For instance, primitive types cannot contain null values.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expression</code> - expression to test</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true when the expression is known to be not-null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="eq(org.apache.calcite.linq4j.tree.Expression,org.apache.calcite.linq4j.tree.Expression)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>eq</h4> |
| <pre class="methodSignature">private static boolean eq​(<a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> a, |
| <a href="Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> b)</pre> |
| <div class="block">Treats two expressions equal even if they represent different null types</div> |
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