blob: 5c4a97cd7dd8c74b65fc32161a023559eb14efa3 [file] [log] [blame]
<!DOCTYPE HTML>
<html lang="en">
<head>
<!-- Generated by javadoc (17) -->
<title>AbstractSchema (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.schema.impl, class: AbstractSchema">
<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><a href="#nested-class-summary">Nested</a>&nbsp;|&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li><a href="#constructor-summary">Constr</a>&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><a href="#constructor-detail">Constr</a>&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.schema.impl</a></div>
<h1 title="Class AbstractSchema" class="title">Class AbstractSchema</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.calcite.schema.impl.AbstractSchema</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
</dl>
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../../adapter/cassandra/CassandraSchema.html" title="class in org.apache.calcite.adapter.cassandra">CassandraSchema</a></code>, <code><a href="../../adapter/clone/CloneSchema.html" title="class in org.apache.calcite.adapter.clone">CloneSchema</a></code>, <code><a href="../../adapter/csv/CsvSchema.html" title="class in org.apache.calcite.adapter.csv">CsvSchema</a></code>, <code><a href="../../adapter/druid/DruidSchema.html" title="class in org.apache.calcite.adapter.druid">DruidSchema</a></code>, <code><a href="../../adapter/elasticsearch/ElasticsearchSchema.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchSchema</a></code>, <code><a href="../../adapter/geode/rel/GeodeSchema.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeSchema</a></code>, <code><a href="../../adapter/geode/simple/GeodeSimpleSchema.html" title="class in org.apache.calcite.adapter.geode.simple">GeodeSimpleSchema</a></code>, <code><a href="../../adapter/innodb/InnodbSchema.html" title="class in org.apache.calcite.adapter.innodb">InnodbSchema</a></code>, <code><a href="../../adapter/jdbc/JdbcCatalogSchema.html" title="class in org.apache.calcite.adapter.jdbc">JdbcCatalogSchema</a></code>, <code><a href="../../adapter/mongodb/MongoSchema.html" title="class in org.apache.calcite.adapter.mongodb">MongoSchema</a></code>, <code><a href="../../adapter/pig/PigSchema.html" title="class in org.apache.calcite.adapter.pig">PigSchema</a></code>, <code><a href="../../adapter/java/ReflectiveSchema.html" title="class in org.apache.calcite.adapter.java">ReflectiveSchema</a></code>, <code><a href="../../adapter/splunk/SplunkSchema.html" title="class in org.apache.calcite.adapter.splunk">SplunkSchema</a></code>, <code><a href="../../adapter/tpcds/TpcdsSchema.html" title="class in org.apache.calcite.adapter.tpcds">TpcdsSchema</a></code>, <code><a href="../../adapter/tpch/TpchSchema.html" title="class in org.apache.calcite.adapter.tpch">TpchSchema</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">AbstractSchema</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
implements <a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></span></div>
<div class="block">Abstract implementation of <a href="../Schema.html" title="interface in org.apache.calcite.schema"><code>Schema</code></a>.
<p>Behavior is as follows:</p>
<ul>
<li>The schema has no tables unless you override
<a href="#getTableMap()"><code>getTableMap()</code></a>.</li>
<li>The schema has no functions unless you override
<a href="#getFunctionMultimap()"><code>getFunctionMultimap()</code></a>.</li>
<li>The schema has no sub-schemas unless you override
<a href="#getSubSchemaMap()"><code>getSubSchemaMap()</code></a>.</li>
<li>The schema is mutable unless you override
<a href="#isMutable()"><code>isMutable()</code></a>.</li>
<li>The name and parent schema are as specified in the constructor
arguments.</li>
</ul></div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<li>
<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="caption"><span>Nested Classes</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Class</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static class&nbsp;</code></div>
<div class="col-second even-row-color"><code><a href="AbstractSchema.Factory.html" class="type-name-link" title="class in org.apache.calcite.schema.impl">AbstractSchema.Factory</a></code></div>
<div class="col-last even-row-color">
<div class="block">Schema factory that creates an
<a href="AbstractSchema.html" title="class in org.apache.calcite.schema.impl"><code>AbstractSchema</code></a>.</div>
</div>
</div>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.apache.calcite.schema.Schema">Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.schema.<a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></h2>
<code><a href="../Schema.TableType.html" title="enum in org.apache.calcite.schema">Schema.TableType</a></code></div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">AbstractSchema</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== 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-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete 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-tab4"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getExpression(org.apache.calcite.schema.SchemaPlus,java.lang.String)" class="member-name-link">getExpression</a><wbr>(@Nullable <a href="../SchemaPlus.html" title="interface in org.apache.calcite.schema">SchemaPlus</a>&nbsp;parentSchema,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the expression by which this schema can be referenced in generated
code.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected com.google.common.collect.Multimap&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Function.html" title="interface in org.apache.calcite.schema">Function</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getFunctionMultimap()" class="member-name-link">getFunctionMultimap</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a multi-map of functions in this schema by name.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getFunctionNames()" class="member-name-link">getFunctionNames</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the names of the functions in this schema.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Collection.html" title="class or interface in java.util" class="external-link">Collection</a>&lt;<a href="../Function.html" title="interface in org.apache.calcite.schema">Function</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getFunctions(java.lang.String)" class="member-name-link">getFunctions</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a list of functions in this schema with the given name, or
an empty list if there is no such function.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final @Nullable <a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSubSchema(java.lang.String)" class="member-name-link">getSubSchema</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a sub-schema with a given name, or null.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSubSchemaMap()" class="member-name-link">getSubSchemaMap</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a map of sub-schemas in this schema by name.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSubSchemaNames()" class="member-name-link">getSubSchemaNames</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the names of this schema's child schemas.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final @Nullable <a href="../Table.html" title="interface in org.apache.calcite.schema">Table</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTable(java.lang.String)" class="member-name-link">getTable</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a table with a given name, or null if not found.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Table.html" title="interface in org.apache.calcite.schema">Table</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTableMap()" class="member-name-link">getTableMap</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a map of tables in this schema by name.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTableNames()" class="member-name-link">getTableNames</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the names of the tables in this schema.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>@Nullable <a href="../../rel/type/RelProtoDataType.html" title="interface in org.apache.calcite.rel.type">RelProtoDataType</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getType(java.lang.String)" class="member-name-link">getType</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a type with a given name, or null if not found.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../../rel/type/RelProtoDataType.html" title="interface in org.apache.calcite.rel.type">RelProtoDataType</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTypeMap()" class="member-name-link">getTypeMap</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns a map of types in this schema by name.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTypeNames()" class="member-name-link">getTypeNames</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the names of the types in this schema.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isMutable()" class="member-name-link">isMutable</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns whether the user is allowed to create new tables, functions
and sub-schemas in this schema, in addition to those returned automatically
by methods such as <a href="../Schema.html#getTable(java.lang.String)"><code>Schema.getTable(String)</code></a>.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#snapshot(org.apache.calcite.schema.SchemaVersion)" class="member-name-link">snapshot</a><wbr>(<a href="../SchemaVersion.html" title="interface in org.apache.calcite.schema">SchemaVersion</a>&nbsp;version)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the snapshot of this schema as of the specified time.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>AbstractSchema</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">AbstractSchema</span>()</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="isMutable()">
<h3>isMutable</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isMutable</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#isMutable()">Schema</a></code></span></div>
<div class="block">Returns whether the user is allowed to create new tables, functions
and sub-schemas in this schema, in addition to those returned automatically
by methods such as <a href="../Schema.html#getTable(java.lang.String)"><code>Schema.getTable(String)</code></a>.
<p>Even if this method returns true, the maps are not modified. Calcite
stores the defined objects in a wrapper object.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#isMutable()">isMutable</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Returns:</dt>
<dd>Whether the user is allowed to create new tables, functions
and sub-schemas in this schema</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="snapshot(org.apache.calcite.schema.SchemaVersion)">
<h3>snapshot</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></span>&nbsp;<span class="element-name">snapshot</span><wbr><span class="parameters">(<a href="../SchemaVersion.html" title="interface in org.apache.calcite.schema">SchemaVersion</a>&nbsp;version)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#snapshot(org.apache.calcite.schema.SchemaVersion)">Schema</a></code></span></div>
<div class="block">Returns the snapshot of this schema as of the specified time. The
contents of the schema snapshot should not change over time.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#snapshot(org.apache.calcite.schema.SchemaVersion)">snapshot</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>version</code> - The current schema version</dd>
<dt>Returns:</dt>
<dd>the schema snapshot.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getExpression(org.apache.calcite.schema.SchemaPlus,java.lang.String)">
<h3>getExpression</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></span>&nbsp;<span class="element-name">getExpression</span><wbr><span class="parameters">(@Nullable <a href="../SchemaPlus.html" title="interface in org.apache.calcite.schema">SchemaPlus</a>&nbsp;parentSchema,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getExpression(org.apache.calcite.schema.SchemaPlus,java.lang.String)">Schema</a></code></span></div>
<div class="block">Returns the expression by which this schema can be referenced in generated
code.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getExpression(org.apache.calcite.schema.SchemaPlus,java.lang.String)">getExpression</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>parentSchema</code> - Parent schema</dd>
<dd><code>name</code> - Name of this schema</dd>
<dt>Returns:</dt>
<dd>Expression by which this schema can be referenced in generated code</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTableMap()">
<h3>getTableMap</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Table.html" title="interface in org.apache.calcite.schema">Table</a>&gt;</span>&nbsp;<span class="element-name">getTableMap</span>()</div>
<div class="block">Returns a map of tables in this schema by name.
<p>The implementations of <a href="#getTableNames()"><code>getTableNames()</code></a>
and <a href="#getTable(java.lang.String)"><code>getTable(String)</code></a> depend on this map.
The default implementation of this method returns the empty map.
Override this method to change their behavior.</p></div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Map of tables in this schema by name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTableNames()">
<h3>getTableNames</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</span>&nbsp;<span class="element-name">getTableNames</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getTableNames()">Schema</a></code></span></div>
<div class="block">Returns the names of the tables in this schema.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getTableNames()">getTableNames</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Returns:</dt>
<dd>Names of the tables in this schema</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTable(java.lang.String)">
<h3>getTable</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">@Nullable <a href="../Table.html" title="interface in org.apache.calcite.schema">Table</a></span>&nbsp;<span class="element-name">getTable</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getTable(java.lang.String)">Schema</a></code></span></div>
<div class="block">Returns a table with a given name, or null if not found.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getTable(java.lang.String)">getTable</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>name</code> - Table name</dd>
<dt>Returns:</dt>
<dd>Table, or null</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTypeMap()">
<h3>getTypeMap</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../../rel/type/RelProtoDataType.html" title="interface in org.apache.calcite.rel.type">RelProtoDataType</a>&gt;</span>&nbsp;<span class="element-name">getTypeMap</span>()</div>
<div class="block">Returns a map of types in this schema by name.
<p>The implementations of <a href="#getTypeNames()"><code>getTypeNames()</code></a>
and <a href="#getType(java.lang.String)"><code>getType(String)</code></a> depend on this map.
The default implementation of this method returns the empty map.
Override this method to change their behavior.</p></div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Map of types in this schema by name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getType(java.lang.String)">
<h3>getType</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">@Nullable <a href="../../rel/type/RelProtoDataType.html" title="interface in org.apache.calcite.rel.type">RelProtoDataType</a></span>&nbsp;<span class="element-name">getType</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getType(java.lang.String)">Schema</a></code></span></div>
<div class="block">Returns a type with a given name, or null if not found.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getType(java.lang.String)">getType</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>name</code> - Table name</dd>
<dt>Returns:</dt>
<dd>Table, or null</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTypeNames()">
<h3>getTypeNames</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</span>&nbsp;<span class="element-name">getTypeNames</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getTypeNames()">Schema</a></code></span></div>
<div class="block">Returns the names of the types in this schema.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getTypeNames()">getTypeNames</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Returns:</dt>
<dd>Names of the tables in this schema</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getFunctionMultimap()">
<h3>getFunctionMultimap</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">com.google.common.collect.Multimap&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Function.html" title="interface in org.apache.calcite.schema">Function</a>&gt;</span>&nbsp;<span class="element-name">getFunctionMultimap</span>()</div>
<div class="block">Returns a multi-map of functions in this schema by name.
It is a multi-map because functions are overloaded; there may be more than
one function in a schema with a given name (as long as they have different
parameter lists).
<p>The implementations of <a href="#getFunctionNames()"><code>getFunctionNames()</code></a>
and <a href="../Schema.html#getFunctions(java.lang.String)"><code>Schema.getFunctions(String)</code></a> depend on this map.
The default implementation of this method returns the empty multi-map.
Override this method to change their behavior.</p></div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Multi-map of functions in this schema by name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getFunctions(java.lang.String)">
<h3>getFunctions</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Collection.html" title="class or interface in java.util" class="external-link">Collection</a>&lt;<a href="../Function.html" title="interface in org.apache.calcite.schema">Function</a>&gt;</span>&nbsp;<span class="element-name">getFunctions</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getFunctions(java.lang.String)">Schema</a></code></span></div>
<div class="block">Returns a list of functions in this schema with the given name, or
an empty list if there is no such function.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getFunctions(java.lang.String)">getFunctions</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>name</code> - Name of function</dd>
<dt>Returns:</dt>
<dd>List of functions with given name, or empty list</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getFunctionNames()">
<h3>getFunctionNames</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</span>&nbsp;<span class="element-name">getFunctionNames</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getFunctionNames()">Schema</a></code></span></div>
<div class="block">Returns the names of the functions in this schema.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getFunctionNames()">getFunctionNames</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Returns:</dt>
<dd>Names of the functions in this schema</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSubSchemaMap()">
<h3>getSubSchemaMap</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a>&gt;</span>&nbsp;<span class="element-name">getSubSchemaMap</span>()</div>
<div class="block">Returns a map of sub-schemas in this schema by name.
<p>The implementations of <a href="#getSubSchemaNames()"><code>getSubSchemaNames()</code></a>
and <a href="#getSubSchema(java.lang.String)"><code>getSubSchema(String)</code></a> depend on this map.
The default implementation of this method returns the empty map.
Override this method to change their behavior.</p></div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Map of sub-schemas in this schema by name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSubSchemaNames()">
<h3>getSubSchemaNames</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a>&lt;<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</span>&nbsp;<span class="element-name">getSubSchemaNames</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getSubSchemaNames()">Schema</a></code></span></div>
<div class="block">Returns the names of this schema's child schemas.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getSubSchemaNames()">getSubSchemaNames</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Returns:</dt>
<dd>Names of this schema's child schemas</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSubSchema(java.lang.String)">
<h3>getSubSchema</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">@Nullable <a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></span>&nbsp;<span class="element-name">getSubSchema</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;name)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../Schema.html#getSubSchema(java.lang.String)">Schema</a></code></span></div>
<div class="block">Returns a sub-schema with a given name, or null.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../Schema.html#getSubSchema(java.lang.String)">getSubSchema</a></code>&nbsp;in interface&nbsp;<code><a href="../Schema.html" title="interface in org.apache.calcite.schema">Schema</a></code></dd>
<dt>Parameters:</dt>
<dd><code>name</code> - Sub-schema name</dd>
<dt>Returns:</dt>
<dd>Sub-schema with a given name, or null</dd>
</dl>
</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>