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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.adapter.enumerable</a></div>
<h2 title="Class EnumUtils" class="title">Class EnumUtils</h2>
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<li>java.lang.Object</li>
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<li>org.apache.calcite.adapter.enumerable.EnumUtils</li>
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<pre>public class <span class="typeNameLabel">EnumUtils</span>
extends java.lang.Object</pre>
<div class="block">Utilities for generating programs in the Enumerable (functional)
style.</div>
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<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>(package private) static boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BRIDGE_METHODS">BRIDGE_METHODS</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static java.util.List&lt;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LEFT_RIGHT">LEFT_RIGHT</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NO_EXPRS">NO_EXPRS</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;<a href="../../linq4j/tree/ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NO_PARAMS">NO_PARAMS</a></span></code></th>
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<td class="colFirst"><code>private </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">EnumUtils</a></span>()</code></th>
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<td class="colFirst"><code>(package private) static <a href="../../linq4j/tree/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="#enforce(java.lang.reflect.Type,org.apache.calcite.linq4j.tree.Expression)">enforce</a></span>&#8203;(java.lang.reflect.Type&nbsp;storageType,
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<td class="colLast">&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fieldRowTypes(org.apache.calcite.rel.type.RelDataType,java.util.List,java.util.List)">fieldRowTypes</a></span>&#8203;(<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;inputRowType,
java.util.List&lt;? extends <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;extraInputs,
java.util.List&lt;java.lang.Integer&gt;&nbsp;argList)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;java.lang.reflect.Type&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fieldTypes(org.apache.calcite.adapter.java.JavaTypeFactory,java.util.List)">fieldTypes</a></span>&#8203;(<a href="../java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a>&nbsp;typeFactory,
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<td class="colLast">&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fromInternal(java.lang.Class%5B%5D,java.util.List)">fromInternal</a></span>&#8203;(java.lang.Class&lt;?&gt;[]&nbsp;targetTypes,
java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;expressions)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>(package private) static java.lang.reflect.Type</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fromInternal(java.lang.reflect.Type)">fromInternal</a></span>&#8203;(java.lang.reflect.Type&nbsp;type)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>(package private) static <a href="../../linq4j/tree/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="#fromInternal(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)">fromInternal</a></span>&#8203;(<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;e,
java.lang.Class&lt;?&gt;&nbsp;targetType)</code></th>
<td class="colLast">
<div class="block">Converts from internal representation to JDBC representation used by
arguments of user-defined functions.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>(package private) static java.util.List&lt;java.lang.reflect.Type&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#internalTypes(java.util.List)">internalTypes</a></span>&#8203;(java.util.List&lt;? extends <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;operandList)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>(package private) static java.lang.reflect.Type</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#javaClass(org.apache.calcite.adapter.java.JavaTypeFactory,org.apache.calcite.rel.type.RelDataType)">javaClass</a></span>&#8203;(<a href="../java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a>&nbsp;typeFactory,
<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>(package private) static <a href="../../linq4j/tree/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="#joinSelector(org.apache.calcite.rel.core.JoinRelType,org.apache.calcite.adapter.enumerable.PhysType,java.util.List)">joinSelector</a></span>&#8203;(<a href="../../rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>&nbsp;joinType,
<a href="PhysType.html" title="interface in org.apache.calcite.adapter.enumerable">PhysType</a>&nbsp;physType,
java.util.List&lt;<a href="PhysType.html" title="interface in org.apache.calcite.adapter.enumerable">PhysType</a>&gt;&nbsp;inputPhysTypes)</code></th>
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<td class="colFirst"><code>static <a href="../../linq4j/tree/MethodDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MethodDeclaration</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#overridingMethodDecl(java.lang.reflect.Method,java.lang.Iterable,org.apache.calcite.linq4j.tree.BlockStatement)">overridingMethodDecl</a></span>&#8203;(java.lang.reflect.Method&nbsp;method,
java.lang.Iterable&lt;<a href="../../linq4j/tree/ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a>&gt;&nbsp;parameters,
<a href="../../linq4j/tree/BlockStatement.html" title="class in org.apache.calcite.linq4j.tree">BlockStatement</a>&nbsp;body)</code></th>
<td class="colLast">
<div class="block">Declares a method that overrides another method.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>(package private) static java.lang.reflect.Type</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toInternal(org.apache.calcite.rel.type.RelDataType)">toInternal</a></span>&#8203;(<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code>(package private) static <a href="../../linq4j/JoinType.html" title="enum in org.apache.calcite.linq4j">JoinType</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toLinq4jJoinType(org.apache.calcite.rel.core.JoinRelType)">toLinq4jJoinType</a></span>&#8203;(<a href="../../rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>&nbsp;joinRelType)</code></th>
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<div class="block">Transforms a JoinRelType to Linq4j JoinType.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
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<h4>BRIDGE_METHODS</h4>
<pre>static final&nbsp;boolean BRIDGE_METHODS</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.calcite.adapter.enumerable.EnumUtils.BRIDGE_METHODS">Constant Field Values</a></dd>
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<pre>static final&nbsp;java.util.List&lt;<a href="../../linq4j/tree/ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a>&gt; NO_PARAMS</pre>
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<pre>static final&nbsp;java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt; NO_EXPRS</pre>
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<pre>public static final&nbsp;java.util.List&lt;java.lang.String&gt; LEFT_RIGHT</pre>
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<h4>EnumUtils</h4>
<pre>private&nbsp;EnumUtils()</pre>
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<pre class="methodSignature">public static&nbsp;<a href="../../linq4j/tree/MethodDeclaration.html" title="class in org.apache.calcite.linq4j.tree">MethodDeclaration</a>&nbsp;overridingMethodDecl&#8203;(java.lang.reflect.Method&nbsp;method,
java.lang.Iterable&lt;<a href="../../linq4j/tree/ParameterExpression.html" title="class in org.apache.calcite.linq4j.tree">ParameterExpression</a>&gt;&nbsp;parameters,
<a href="../../linq4j/tree/BlockStatement.html" title="class in org.apache.calcite.linq4j.tree">BlockStatement</a>&nbsp;body)</pre>
<div class="block">Declares a method that overrides another method.</div>
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<pre class="methodSignature">static&nbsp;java.lang.reflect.Type&nbsp;javaClass&#8203;(<a href="../java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a>&nbsp;typeFactory,
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<pre class="methodSignature">static&nbsp;java.util.List&lt;java.lang.reflect.Type&gt;&nbsp;fieldTypes&#8203;(<a href="../java/JavaTypeFactory.html" title="interface in org.apache.calcite.adapter.java">JavaTypeFactory</a>&nbsp;typeFactory,
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<pre class="methodSignature">static&nbsp;java.util.List&lt;<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;&nbsp;fieldRowTypes&#8203;(<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;inputRowType,
java.util.List&lt;? extends <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;extraInputs,
java.util.List&lt;java.lang.Integer&gt;&nbsp;argList)</pre>
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<h4>joinSelector</h4>
<pre class="methodSignature">static&nbsp;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;joinSelector&#8203;(<a href="../../rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>&nbsp;joinType,
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java.util.List&lt;<a href="PhysType.html" title="interface in org.apache.calcite.adapter.enumerable">PhysType</a>&gt;&nbsp;inputPhysTypes)</pre>
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<h4>fromInternal</h4>
<pre class="methodSignature">static&nbsp;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;fromInternal&#8203;(<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;e,
java.lang.Class&lt;?&gt;&nbsp;targetType)</pre>
<div class="block">Converts from internal representation to JDBC representation used by
arguments of user-defined functions. For example, converts date values from
<code>int</code> to <code>Date</code>.</div>
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<pre class="methodSignature">static&nbsp;java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;fromInternal&#8203;(java.lang.Class&lt;?&gt;[]&nbsp;targetTypes,
java.util.List&lt;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&gt;&nbsp;expressions)</pre>
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<pre class="methodSignature">static&nbsp;java.lang.reflect.Type&nbsp;fromInternal&#8203;(java.lang.reflect.Type&nbsp;type)</pre>
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<pre class="methodSignature">static&nbsp;java.lang.reflect.Type&nbsp;toInternal&#8203;(<a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type)</pre>
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<pre class="methodSignature">static&nbsp;java.util.List&lt;java.lang.reflect.Type&gt;&nbsp;internalTypes&#8203;(java.util.List&lt;? extends <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;operandList)</pre>
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<pre class="methodSignature">static&nbsp;<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;enforce&#8203;(java.lang.reflect.Type&nbsp;storageType,
<a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a>&nbsp;e)</pre>
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<pre class="methodSignature">static&nbsp;<a href="../../linq4j/JoinType.html" title="enum in org.apache.calcite.linq4j">JoinType</a>&nbsp;toLinq4jJoinType&#8203;(<a href="../../rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>&nbsp;joinRelType)</pre>
<div class="block">Transforms a JoinRelType to Linq4j JoinType.</div>
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