blob: dee590b7a15d2cb5ab6b1392a648c0c57ca5b8da [file] [log] [blame]
<!DOCTYPE HTML>
<html lang="en">
<head>
<!-- Generated by javadoc (17) -->
<title>Mappings.SourceMapping (Apache Calcite API)</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="description" content="declaration: package: org.apache.calcite.util.mapping, class: Mappings, interface: SourceMapping">
<meta name="generator" content="javadoc/ClassWriterImpl">
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
<link rel="stylesheet" type="text/css" href="../../../../../script-dir/jquery-ui.min.css" title="Style">
<link rel="stylesheet" type="text/css" href="../../../../../jquery-ui.overrides.css" title="Style">
<script type="text/javascript" src="../../../../../script.js"></script>
<script type="text/javascript" src="../../../../../script-dir/jquery-3.5.1.min.js"></script>
<script type="text/javascript" src="../../../../../script-dir/jquery-ui.min.js"></script>
</head>
<body class="class-declaration-page">
<script type="text/javascript">var evenRowColor = "even-row-color";
var oddRowColor = "odd-row-color";
var tableTab = "table-tab";
var activeTableTab = "active-table-tab";
var pathtoroot = "../../../../../";
loadScripts(document, 'script');</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<div class="flex-box">
<header role="banner" class="flex-header">
<nav role="navigation">
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="top-nav" id="navbar-top">
<div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div>
<div class="about-language"><b>Apache Calcite</b></div>
<ul id="navbar-top-firstrow" class="nav-list" title="Navigation">
<li><a href="../../../../../index.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="nav-bar-cell1-rev">Class</li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../help-doc.html#class">Help</a></li>
</ul>
</div>
<div class="sub-nav">
<div>
<ul class="sub-nav-list">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method-summary">Method</a></li>
</ul>
<ul class="sub-nav-list">
<li>Detail:&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method-detail">Method</a></li>
</ul>
</div>
<div class="nav-list-search"><label for="search-input">SEARCH:</label>
<input type="text" id="search-input" value="search" disabled="disabled">
<input type="reset" id="reset-button" value="reset" disabled="disabled">
</div>
</div>
<!-- ========= END OF TOP NAVBAR ========= -->
<span class="skip-nav" id="skip-navbar-top"></span></nav>
</header>
<div class="flex-content">
<main role="main">
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.util.mapping</a></div>
<h1 title="Interface Mappings.SourceMapping" class="title">Interface Mappings.SourceMapping</h1>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Superinterfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;<a href="IntPair.html" title="class in org.apache.calcite.util.mapping">IntPair</a>&gt;</code>, <code><a href="Mappings.CoreMapping.html" title="interface in org.apache.calcite.util.mapping">Mappings.CoreMapping</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Subinterfaces:</dt>
<dd><code><a href="Mapping.html" title="interface in org.apache.calcite.util.mapping">Mapping</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="AbstractSourceMapping.html" title="class in org.apache.calcite.util.mapping">AbstractSourceMapping</a></code>, <code><a href="AbstractTargetMapping.html" title="class in org.apache.calcite.util.mapping">AbstractTargetMapping</a></code>, <code><a href="Mappings.AbstractMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.AbstractMapping</a></code>, <code><a href="Mappings.FiniteAbstractMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.FiniteAbstractMapping</a></code>, <code><a href="Mappings.IdentityMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.IdentityMapping</a></code>, <code><a href="Mappings.OverridingSourceMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.OverridingSourceMapping</a></code>, <code><a href="Mappings.OverridingTargetMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.OverridingTargetMapping</a></code>, <code><a href="Mappings.PartialMapping.html" title="class in org.apache.calcite.util.mapping">Mappings.PartialMapping</a></code>, <code><a href="../Permutation.html" title="class in org.apache.calcite.util">Permutation</a></code></dd>
</dl>
<dl class="notes">
<dt>Enclosing class:</dt>
<dd><a href="Mappings.html" title="class in org.apache.calcite.util.mapping">Mappings</a></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public static interface </span><span class="element-name type-name-label">Mappings.SourceMapping</span><span class="extends-implements">
extends <a href="Mappings.CoreMapping.html" title="interface in org.apache.calcite.util.mapping">Mappings.CoreMapping</a></span></div>
<div class="block">Mapping suitable for sourcing columns.
<p>Properties:
<ul>
<li>It has a finite number of sources and targets
<li>Each target has exactly one source
<li>Each source has at most one target
</ul>
<p>TODO: figure out which interfaces this should extend</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="MappingType.html" title="enum in org.apache.calcite.util.mapping">MappingType</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getMappingType()" class="member-name-link">getMappingType</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the mapping type.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSource(int)" class="member-name-link">getSource</a><wbr>(int&nbsp;target)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the source that a target maps to.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSourceCount()" class="member-name-link">getSourceCount</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSourceOpt(int)" class="member-name-link">getSourceOpt</a><wbr>(int&nbsp;target)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the source that a target maps to, or -1 if it is not mapped.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getTargetCount()" class="member-name-link">getTargetCount</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getTargetOpt(int)" class="member-name-link">getTargetOpt</a><wbr>(int&nbsp;source)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the target that a source maps to, or -1 if it is not mapped.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Mapping.html" title="interface in org.apache.calcite.util.mapping">Mapping</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#inverse()" class="member-name-link">inverse</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isIdentity()" class="member-name-link">isIdentity</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Iterable">Methods inherited from interface&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html#forEach(java.util.function.Consumer)" title="class or interface in java.lang" class="external-link">forEach</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html#iterator()" title="class or interface in java.lang" class="external-link">iterator</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html#spliterator()" title="class or interface in java.lang" class="external-link">spliterator</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.calcite.util.mapping.Mappings.CoreMapping">Methods inherited from interface&nbsp;org.apache.calcite.util.mapping.<a href="Mappings.CoreMapping.html" title="interface in org.apache.calcite.util.mapping">Mappings.CoreMapping</a></h3>
<code><a href="Mappings.CoreMapping.html#size()">size</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getSourceCount()">
<h3>getSourceCount</h3>
<div class="member-signature"><span class="return-type">int</span>&nbsp;<span class="element-name">getSourceCount</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getSource(int)">
<h3>getSource</h3>
<div class="member-signature"><span class="return-type">int</span>&nbsp;<span class="element-name">getSource</span><wbr><span class="parameters">(int&nbsp;target)</span></div>
<div class="block">Returns the source that a target maps to.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>target</code> - target</dd>
<dt>Returns:</dt>
<dd>source</dd>
<dt>Throws:</dt>
<dd><code><a href="Mappings.NoElementException.html" title="class in org.apache.calcite.util.mapping">Mappings.NoElementException</a></code> - if target is not mapped</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSourceOpt(int)">
<h3>getSourceOpt</h3>
<div class="member-signature"><span class="return-type">int</span>&nbsp;<span class="element-name">getSourceOpt</span><wbr><span class="parameters">(int&nbsp;target)</span></div>
<div class="block">Returns the source that a target maps to, or -1 if it is not mapped.</div>
</section>
</li>
<li>
<section class="detail" id="getTargetCount()">
<h3>getTargetCount</h3>
<div class="member-signature"><span class="return-type">int</span>&nbsp;<span class="element-name">getTargetCount</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getTargetOpt(int)">
<h3>getTargetOpt</h3>
<div class="member-signature"><span class="return-type">int</span>&nbsp;<span class="element-name">getTargetOpt</span><wbr><span class="parameters">(int&nbsp;source)</span></div>
<div class="block">Returns the target that a source maps to, or -1 if it is not mapped.</div>
</section>
</li>
<li>
<section class="detail" id="getMappingType()">
<h3>getMappingType</h3>
<div class="member-signature"><span class="return-type"><a href="MappingType.html" title="enum in org.apache.calcite.util.mapping">MappingType</a></span>&nbsp;<span class="element-name">getMappingType</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Mappings.CoreMapping.html#getMappingType()">Mappings.CoreMapping</a></code></span></div>
<div class="block">Returns the mapping type.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Mappings.CoreMapping.html#getMappingType()">getMappingType</a></code>&nbsp;in interface&nbsp;<code><a href="Mappings.CoreMapping.html" title="interface in org.apache.calcite.util.mapping">Mappings.CoreMapping</a></code></dd>
<dt>Returns:</dt>
<dd>Mapping type</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isIdentity()">
<h3>isIdentity</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">isIdentity</span>()</div>
</section>
</li>
<li>
<section class="detail" id="inverse()">
<h3>inverse</h3>
<div class="member-signature"><span class="return-type"><a href="Mapping.html" title="interface in org.apache.calcite.util.mapping">Mapping</a></span>&nbsp;<span class="element-name">inverse</span>()</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
<!-- ========= END OF CLASS DATA ========= -->
</main>
<footer role="contentinfo">
<hr>
<p class="legal-copy"><small>Copyright &copy; 2012-2023 Apache Software Foundation. All Rights Reserved.</small></p>
</footer>
</div>
</div>
</body>
</html>