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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.sql.validate</a></div>
<h1 title="Class JoinScope" class="title">Class JoinScope</h1>
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<div class="inheritance"><a href="DelegatingScope.html" title="class in org.apache.calcite.sql.validate">org.apache.calcite.sql.validate.DelegatingScope</a>
<div class="inheritance"><a href="ListScope.html" title="class in org.apache.calcite.sql.validate">org.apache.calcite.sql.validate.ListScope</a>
<div class="inheritance">org.apache.calcite.sql.validate.JoinScope</div>
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<section class="description">
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></code></dd>
</dl>
<hr>
<pre>public class <span class="typeNameLabel">JoinScope</span>
extends <a href="ListScope.html" title="class in org.apache.calcite.sql.validate">ListScope</a></pre>
<div class="block">The name-resolution context for expression inside a JOIN clause. The objects
visible are the joined table expressions, and those inherited from the parent
scope.
<p>Consider "SELECT * FROM (A JOIN B ON {exp1}) JOIN C ON {exp2}". {exp1} is
resolved in the join scope for "A JOIN B", which contains A and B but not
C.</p></div>
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<h2>Nested Class Summary</h2>
<div class="inheritedList">
<h2>Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.sql.validate.<a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></h2>
<a id="nested.classes.inherited.from.class.org.apache.calcite.sql.validate.SqlValidatorScope">
<!-- -->
</a><code><a href="SqlValidatorScope.EmptyPath.html" title="class in org.apache.calcite.sql.validate">SqlValidatorScope.EmptyPath</a>, <a href="SqlValidatorScope.Path.html" title="class in org.apache.calcite.sql.validate">SqlValidatorScope.Path</a>, <a href="SqlValidatorScope.Resolve.html" title="class in org.apache.calcite.sql.validate">SqlValidatorScope.Resolve</a>, <a href="SqlValidatorScope.Resolved.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope.Resolved</a>, <a href="SqlValidatorScope.ResolvedImpl.html" title="class in org.apache.calcite.sql.validate">SqlValidatorScope.ResolvedImpl</a>, <a href="SqlValidatorScope.Step.html" title="class in org.apache.calcite.sql.validate">SqlValidatorScope.Step</a></code></div>
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<h2>Field Summary</h2>
<div class="inheritedList">
<h3>Fields inherited from class&nbsp;org.apache.calcite.sql.validate.<a href="ListScope.html" title="class in org.apache.calcite.sql.validate">ListScope</a></h3>
<a id="fields.inherited.from.class.org.apache.calcite.sql.validate.ListScope">
<!-- -->
</a><code><a href="ListScope.html#children">children</a></code></div>
<div class="inheritedList">
<h3>Fields inherited from class&nbsp;org.apache.calcite.sql.validate.<a href="DelegatingScope.html" title="class in org.apache.calcite.sql.validate">DelegatingScope</a></h3>
<a id="fields.inherited.from.class.org.apache.calcite.sql.validate.DelegatingScope">
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</a><code><a href="DelegatingScope.html#parent">parent</a>, <a href="DelegatingScope.html#validator">validator</a></code></div>
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<h2>Method Summary</h2>
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<div role="tablist" aria-orientation="horizontal"><button role="tab" aria-selected="true" aria-controls="memberSummary_tabpanel" tabindex="0" onkeydown="switchTab(event)" id="t0" class="activeTableTab">All Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t2" class="tableTab" onclick="show(2);">Instance Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t4" class="tableTab" onclick="show(8);">Concrete Methods</button></div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor" id="i0">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addChild(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.lang.String,boolean)">addChild</a></span>&#8203;(<a href="SqlValidatorNamespace.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorNamespace</a>&nbsp;ns,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;alias,
boolean&nbsp;nullable)</code></th>
<td class="colLast">
<div class="block">Registers a relation in this scope.</div>
</td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="../SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNode()">getNode</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the root node of this scope.</div>
</td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getUsingScope()">getUsingScope</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the scope which is used for resolving USING clause.</div>
</td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isWithin(org.apache.calcite.sql.validate.SqlValidatorScope)">isWithin</a></span>&#8203;(<a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope2)</code></th>
<td class="colLast">
<div class="block">Returns whether this scope is enclosed within <code>scope2</code> in such
a way that it can see the contents of <code>scope2</code>.</div>
</td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code><a href="../SqlWindow.html" title="class in org.apache.calcite.sql">SqlWindow</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lookupWindow(java.lang.String)">lookupWindow</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;name)</code></th>
<td class="colLast">
<div class="block">Finds a window with a given name.</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="inheritedList">
<h3>Methods inherited from class&nbsp;org.apache.calcite.sql.validate.<a href="ListScope.html" title="class in org.apache.calcite.sql.validate">ListScope</a></h3>
<a id="methods.inherited.from.class.org.apache.calcite.sql.validate.ListScope">
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</a><code><a href="ListScope.html#findAliases(java.util.Collection)">findAliases</a>, <a href="ListScope.html#findAllColumnNames(java.util.List)">findAllColumnNames</a>, <a href="ListScope.html#findQualifyingTableName(java.lang.String,org.apache.calcite.sql.SqlNode)">findQualifyingTableName</a>, <a href="ListScope.html#findQualifyingTableNames(java.lang.String,org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.validate.SqlNameMatcher)">findQualifyingTableNames</a>, <a href="ListScope.html#getChildren()">getChildren</a>, <a href="ListScope.html#resolve(java.util.List,org.apache.calcite.sql.validate.SqlNameMatcher,boolean,org.apache.calcite.sql.validate.SqlValidatorScope.Resolved)">resolve</a>, <a href="ListScope.html#resolveColumn(java.lang.String,org.apache.calcite.sql.SqlNode)">resolveColumn</a></code></div>
<div class="inheritedList">
<h3>Methods inherited from class&nbsp;org.apache.calcite.sql.validate.<a href="DelegatingScope.html" title="class in org.apache.calcite.sql.validate">DelegatingScope</a></h3>
<a id="methods.inherited.from.class.org.apache.calcite.sql.validate.DelegatingScope">
<!-- -->
</a><code><a href="DelegatingScope.html#addColumnNames(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.util.List)">addColumnNames</a>, <a href="DelegatingScope.html#fullyQualify(org.apache.calcite.sql.SqlIdentifier)">fullyQualify</a>, <a href="DelegatingScope.html#getMonotonicity(org.apache.calcite.sql.SqlNode)">getMonotonicity</a>, <a href="DelegatingScope.html#getOperandScope(org.apache.calcite.sql.SqlCall)">getOperandScope</a>, <a href="DelegatingScope.html#getOrderList()">getOrderList</a>, <a href="DelegatingScope.html#getParent()">getParent</a>, <a href="DelegatingScope.html#getTableNamespace(java.util.List)">getTableNamespace</a>, <a href="DelegatingScope.html#getValidator()">getValidator</a>, <a href="DelegatingScope.html#nullifyType(org.apache.calcite.sql.SqlNode,org.apache.calcite.rel.type.RelDataType)">nullifyType</a>, <a href="DelegatingScope.html#resolveTable(java.util.List,org.apache.calcite.sql.validate.SqlNameMatcher,org.apache.calcite.sql.validate.SqlValidatorScope.Path,org.apache.calcite.sql.validate.SqlValidatorScope.Resolved)">resolveTable</a>, <a href="DelegatingScope.html#validateExpr(org.apache.calcite.sql.SqlNode)">validateExpr</a></code></div>
<div class="inheritedList">
<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<a id="methods.inherited.from.class.java.lang.Object">
<!-- -->
</a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div>
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<h3><a id="getNode()">getNode</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">getNode</span>()</div>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SqlValidatorScope.html#getNode()">SqlValidatorScope</a></code></span></div>
<div class="block">Returns the root node of this scope. Never null.</div>
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<h3><a id="addChild(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.lang.String,boolean)">addChild</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType">void</span>&nbsp;<span class="memberName">addChild</span>&#8203;(<span class="arguments"><a href="SqlValidatorNamespace.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorNamespace</a>&nbsp;ns,
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;alias,
boolean&nbsp;nullable)</span></div>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SqlValidatorScope.html#addChild(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.lang.String,boolean)">SqlValidatorScope</a></code></span></div>
<div class="block">Registers a relation in this scope.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SqlValidatorScope.html#addChild(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.lang.String,boolean)">addChild</a></code>&nbsp;in interface&nbsp;<code><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="ListScope.html#addChild(org.apache.calcite.sql.validate.SqlValidatorNamespace,java.lang.String,boolean)">addChild</a></code>&nbsp;in class&nbsp;<code><a href="ListScope.html" title="class in org.apache.calcite.sql.validate">ListScope</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ns</code> - Namespace representing the result-columns of the relation</dd>
<dd><code>alias</code> - Alias with which to reference the relation, must not be null</dd>
<dd><code>nullable</code> - Whether this is a null-generating side of a join</dd>
</dl>
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<h3><a id="lookupWindow(java.lang.String)">lookupWindow</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../SqlWindow.html" title="class in org.apache.calcite.sql">SqlWindow</a></span>&nbsp;<span class="memberName">lookupWindow</span>&#8203;(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SqlValidatorScope.html#lookupWindow(java.lang.String)">SqlValidatorScope</a></code></span></div>
<div class="block">Finds a window with a given name. Returns null if not found.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SqlValidatorScope.html#lookupWindow(java.lang.String)">lookupWindow</a></code>&nbsp;in interface&nbsp;<code><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="DelegatingScope.html#lookupWindow(java.lang.String)">lookupWindow</a></code>&nbsp;in class&nbsp;<code><a href="DelegatingScope.html" title="class in org.apache.calcite.sql.validate">DelegatingScope</a></code></dd>
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<h3><a id="getUsingScope()">getUsingScope</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a></span>&nbsp;<span class="memberName">getUsingScope</span>()</div>
<div class="block">Returns the scope which is used for resolving USING clause.</div>
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<h3><a id="isWithin(org.apache.calcite.sql.validate.SqlValidatorScope)">isWithin</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType">boolean</span>&nbsp;<span class="memberName">isWithin</span>&#8203;(<span class="arguments"><a href="SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope2)</span></div>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SqlValidatorScope.html#isWithin(org.apache.calcite.sql.validate.SqlValidatorScope)">SqlValidatorScope</a></code></span></div>
<div class="block">Returns whether this scope is enclosed within <code>scope2</code> in such
a way that it can see the contents of <code>scope2</code>.</div>
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