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<h1 title="Uses of Package org.apache.calcite.util" class="title">Uses of Package<br>org.apache.calcite.util</h1>
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<table class="useSummary">
<caption><span>Packages that use <a href="package-summary.html">org.apache.calcite.util</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.cassandra">org.apache.calcite.adapter.cassandra</a></th>
<td class="colLast">
<div class="block">Cassandra query provider.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.clone">org.apache.calcite.adapter.clone</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.csv">org.apache.calcite.adapter.csv</a></th>
<td class="colLast">
<div class="block">Calcite query provider that reads from CSV (comma-separated value) files.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.druid">org.apache.calcite.adapter.druid</a></th>
<td class="colLast">
<div class="block">Query provider based on a Druid database.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.elasticsearch">org.apache.calcite.adapter.elasticsearch</a></th>
<td class="colLast">
<div class="block">Query provider based on an Elasticsearch2 DB.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.enumerable">org.apache.calcite.adapter.enumerable</a></th>
<td class="colLast">
<div class="block">Query optimizer rules for Java calling convention.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.file">org.apache.calcite.adapter.file</a></th>
<td class="colLast">
<div class="block">Calcite query provider that reads from web tables (HTML).</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.geode.rel">org.apache.calcite.adapter.geode.rel</a></th>
<td class="colLast">
<div class="block">Query provider based on Apache Geode (Gemfire) In Memory Data Grid</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.jdbc">org.apache.calcite.adapter.jdbc</a></th>
<td class="colLast">
<div class="block">Query provider based on a JDBC data source.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.mongodb">org.apache.calcite.adapter.mongodb</a></th>
<td class="colLast">
<div class="block">Query provider based on a MongoDB database.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.adapter.pig">org.apache.calcite.adapter.pig</a></th>
<td class="colLast">
<div class="block">Pig query provider.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.interpreter">org.apache.calcite.interpreter</a></th>
<td class="colLast">
<div class="block">Provides an implementation of relational expressions using an interpreter.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.jdbc">org.apache.calcite.jdbc</a></th>
<td class="colLast">
<div class="block">JDBC driver for Calcite.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.materialize">org.apache.calcite.materialize</a></th>
<td class="colLast">
<div class="block">Management of materialized query results.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.model">org.apache.calcite.model</a></th>
<td class="colLast">
<div class="block">Provides model files, in JSON format, defining schemas and other metadata.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.piglet">org.apache.calcite.piglet</a></th>
<td class="colLast">
<div class="block">Piglet, a Pig-like language.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.plan">org.apache.calcite.plan</a></th>
<td class="colLast">
<div class="block">Defines interfaces for constructing rule-based optimizers of
relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.plan.hep">org.apache.calcite.plan.hep</a></th>
<td class="colLast">
<div class="block">Provides a heuristic planner implementation for the interfaces in
<a href="../plan/package-summary.html"><code>org.apache.calcite.plan</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.plan.volcano">org.apache.calcite.plan.volcano</a></th>
<td class="colLast">
<div class="block">Optimizes relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.prepare">org.apache.calcite.prepare</a></th>
<td class="colLast">
<div class="block">Preparation of queries (parsing, planning and implementation).</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.profile">org.apache.calcite.profile</a></th>
<td class="colLast">
<div class="block">Utilities to analyze data sets.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel">org.apache.calcite.rel</a></th>
<td class="colLast">
<div class="block">Defines relational expressions.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.core">org.apache.calcite.rel.core</a></th>
<td class="colLast">
<div class="block">Defines core relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.externalize">org.apache.calcite.rel.externalize</a></th>
<td class="colLast">
<div class="block">Facilities to externalize <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>s to and from
XML and JSON format.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.logical">org.apache.calcite.rel.logical</a></th>
<td class="colLast">
<div class="block">Defines logical relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.metadata">org.apache.calcite.rel.metadata</a></th>
<td class="colLast">
<div class="block">Defines metadata interfaces and utilities for relational
expressions.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.mutable">org.apache.calcite.rel.mutable</a></th>
<td class="colLast">
<div class="block">Defines mutable relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.rel2sql">org.apache.calcite.rel.rel2sql</a></th>
<td class="colLast">
<div class="block">Translates a relational expression to SQL parse tree.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.rules">org.apache.calcite.rel.rules</a></th>
<td class="colLast">
<div class="block">Provides a core set of planner rules.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.type">org.apache.calcite.rel.type</a></th>
<td class="colLast">
<div class="block">Defines a type system for relational expressions.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rex">org.apache.calcite.rex</a></th>
<td class="colLast">
<div class="block">Provides a language for representing row-expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.runtime">org.apache.calcite.runtime</a></th>
<td class="colLast">
<div class="block">Utilities required at runtime.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.schema">org.apache.calcite.schema</a></th>
<td class="colLast">
<div class="block">Schema SPI.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.schema.impl">org.apache.calcite.schema.impl</a></th>
<td class="colLast">
<div class="block">Utilities to help implement Calcite's SPIs.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql">org.apache.calcite.sql</a></th>
<td class="colLast">
<div class="block">Provides a SQL parser and object model.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.ddl">org.apache.calcite.sql.ddl</a></th>
<td class="colLast">
<div class="block">Parse tree for SQL DDL statements.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.fun">org.apache.calcite.sql.fun</a></th>
<td class="colLast">
<div class="block">Defines the set of standard SQL row-level functions and
operators.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.parser">org.apache.calcite.sql.parser</a></th>
<td class="colLast">
<div class="block">Provides a SQL parser.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.type">org.apache.calcite.sql.type</a></th>
<td class="colLast">
<div class="block">SQL type system.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.util">org.apache.calcite.sql.util</a></th>
<td class="colLast">
<div class="block">Utility classes for the SQL object model, parsing, and validation.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql.validate">org.apache.calcite.sql.validate</a></th>
<td class="colLast">
<div class="block">SQL validation.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.sql2rel">org.apache.calcite.sql2rel</a></th>
<td class="colLast">
<div class="block">Translates a SQL parse tree to relational expression.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.tools">org.apache.calcite.tools</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.util">org.apache.calcite.util</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.util.graph">org.apache.calcite.util.graph</a></th>
<td class="colLast">
<div class="block">Graph-theoretic algorithms and data structures.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.util.mapping">org.apache.calcite.util.mapping</a></th>
<td class="colLast">
<div class="block">Support for algebraic maps.</div>
</td>
</tr>
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<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
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<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.adapter.cassandra">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
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<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.adapter.clone">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
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<th class="colFirst" scope="row"><a href="class-use/Source.html#org.apache.calcite.adapter.csv">Source</a></th>
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<div class="block">Source of data.</div>
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<th class="colFirst" scope="row"><a href="class-use/Holder.html#org.apache.calcite.adapter.druid">Holder</a></th>
<td class="colLast">
<div class="block">A mutable slot that can contain one object.</div>
</td>
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<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.adapter.druid">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
</td>
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<th class="colFirst" scope="row"><a href="class-use/Litmus.html#org.apache.calcite.adapter.druid">Litmus</a></th>
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<div class="block">Callback to be called when a test for validity succeeds or fails.</div>
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<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.adapter.druid">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.adapter.elasticsearch">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
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<th class="colFirst" scope="row"><a href="class-use/BuiltInMethod.html#org.apache.calcite.adapter.enumerable">BuiltInMethod</a></th>
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<div class="block">Built-in methods.</div>
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<th class="colFirst" scope="row"><a href="class-use/ControlFlowException.html#org.apache.calcite.adapter.enumerable">ControlFlowException</a></th>
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<div class="block">Exception intended to be used for control flow, as opposed to the usual
use of exceptions which is to signal an error condition.</div>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.adapter.enumerable">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableIntList.html#org.apache.calcite.adapter.enumerable">ImmutableIntList</a></th>
<td class="colLast">
<div class="block">An immutable list of <code>Integer</code> values backed by an array of
<code>int</code>s.</div>
</td>
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<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.adapter.enumerable">Pair</a></th>
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<div class="block">Pair of objects.</div>
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<th class="colFirst" scope="row"><a href="class-use/Source.html#org.apache.calcite.adapter.file">Source</a></th>
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<div class="block">Source of data.</div>
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<div class="block">An immutable list of <code>Integer</code> values backed by an array of
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<div class="block">An immutable list of bits.</div>
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<div class="block">An immutable list of bits.</div>
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<th class="colFirst" scope="row"><a href="class-use/Permutation.html#org.apache.calcite.plan">Permutation</a></th>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.rel">ImmutableBitSet</a></th>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.rel.core">ImmutableBitSet</a></th>
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<th class="colFirst" scope="col">Class</th>
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<th class="colFirst" scope="row"><a href="class-use/CalciteValidatorException.html#org.apache.calcite.sql.validate">CalciteValidatorException</a></th>
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<div class="block">Tagging interface to allow a
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.sql.validate">ImmutableBitSet</a></th>
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<div class="block">An immutable list of bits.</div>
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</tr>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableIntList.html#org.apache.calcite.sql.validate">ImmutableIntList</a></th>
<td class="colLast">
<div class="block">An immutable list of <code>Integer</code> values backed by an array of
<code>int</code>s.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Optionality.html#org.apache.calcite.sql.validate">Optionality</a></th>
<td class="colLast">
<div class="block">Four states that describe whether a particular behavior or
property is allowed and/or not allowed.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.sql.validate">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
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<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Holder.html#org.apache.calcite.sql2rel">Holder</a></th>
<td class="colLast">
<div class="block">A mutable slot that can contain one object.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.sql2rel">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
</td>
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<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Litmus.html#org.apache.calcite.sql2rel">Litmus</a></th>
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<div class="block">Callback to be called when a test for validity succeeds or fails.</div>
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<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.sql2rel">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
</td>
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<th class="colFirst" scope="row"><a href="class-use/ReflectiveVisitDispatcher.html#org.apache.calcite.sql2rel">ReflectiveVisitDispatcher</a></th>
<td class="colLast">
<div class="block">Interface for looking up methods relating to reflective visitation.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ReflectiveVisitor.html#org.apache.calcite.sql2rel">ReflectiveVisitor</a></th>
<td class="colLast">
<div class="block">Object which can be a target for a reflective visitation (see
<a href="ReflectUtil.html#invokeVisitor(org.apache.calcite.util.ReflectiveVisitor,java.lang.Object,java.lang.Class,java.lang.String)"><code>ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String)</code></a>.</div>
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<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/ReflectUtil.MethodDispatcher.html#org.apache.calcite.sql2rel">ReflectUtil.MethodDispatcher</a></th>
<td class="colLast">
<div class="block">Can invoke a method on an object of type E with return type T.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Util.FoundOne.html#org.apache.calcite.sql2rel">Util.FoundOne</a></th>
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<div class="block">Exception used to interrupt a tree walk of any kind.</div>
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<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Holder.html#org.apache.calcite.tools">Holder</a></th>
<td class="colLast">
<div class="block">A mutable slot that can contain one object.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.tools">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.tools">Pair</a></th>
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<div class="block">Pair of objects.</div>
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<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Benchmark.Statistician.html#org.apache.calcite.util">Benchmark.Statistician</a></th>
<td class="colLast">
<div class="block">Collects statistics for a test that is run multiple times.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/BitString.html#org.apache.calcite.util">BitString</a></th>
<td class="colLast">
<div class="block">String of bits.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/BuiltInMethod.html#org.apache.calcite.util">BuiltInMethod</a></th>
<td class="colLast">
<div class="block">Built-in methods.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/CaseInsensitiveComparator.html#org.apache.calcite.util">CaseInsensitiveComparator</a></th>
<td class="colLast">
<div class="block">Comparator that compares all strings differently, but if two strings are
equal in case-insensitive match they are right next to each other.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/ChunkList.ChunkListIterator.html#org.apache.calcite.util">ChunkList.ChunkListIterator</a></th>
<td class="colLast">
<div class="block">Iterator over a <a href="ChunkList.html" title="class in org.apache.calcite.util"><code>ChunkList</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/CompositeList.html#org.apache.calcite.util">CompositeList</a></th>
<td class="colLast">
<div class="block">Read-only list that is the concatenation of sub-lists.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/CompositeMap.html#org.apache.calcite.util">CompositeMap</a></th>
<td class="colLast">
<div class="block">Unmodifiable view onto multiple backing maps.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ControlFlowException.html#org.apache.calcite.util">ControlFlowException</a></th>
<td class="colLast">
<div class="block">Exception intended to be used for control flow, as opposed to the usual
use of exceptions which is to signal an error condition.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/DateString.html#org.apache.calcite.util">DateString</a></th>
<td class="colLast">
<div class="block">Date literal.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Glossary.html#org.apache.calcite.util">Glossary</a></th>
<td class="colLast">
<div class="block">A collection of terms.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Holder.html#org.apache.calcite.util">Holder</a></th>
<td class="colLast">
<div class="block">A mutable slot that can contain one object.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.util">ImmutableBitSet</a></th>
<td class="colLast">
<div class="block">An immutable list of bits.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.Builder.html#org.apache.calcite.util">ImmutableBitSet.Builder</a></th>
<td class="colLast">
<div class="block">Builder.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableIntList.html#org.apache.calcite.util">ImmutableIntList</a></th>
<td class="colLast">
<div class="block">An immutable list of <code>Integer</code> values backed by an array of
<code>int</code>s.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/ImmutableNullableList.Builder.html#org.apache.calcite.util">ImmutableNullableList.Builder</a></th>
<td class="colLast">
<div class="block">A builder for creating immutable nullable list instances.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/IntegerIntervalSet.Handler.html#org.apache.calcite.util">IntegerIntervalSet.Handler</a></th>
<td class="colLast">
<div class="block">A callback.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/JsonBuilder.html#org.apache.calcite.util">JsonBuilder</a></th>
<td class="colLast">
<div class="block">Builder for JSON documents (represented as <code>List</code>, <code>Map</code>,
<code>String</code>, <code>Boolean</code>, <code>Long</code>).</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Litmus.html#org.apache.calcite.util">Litmus</a></th>
<td class="colLast">
<div class="block">Callback to be called when a test for validity succeeds or fails.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/NameMap.html#org.apache.calcite.util">NameMap</a></th>
<td class="colLast">
<div class="block">Map whose keys are names and can be accessed with and without case
sensitivity.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/NameSet.html#org.apache.calcite.util">NameSet</a></th>
<td class="colLast">
<div class="block">Set of names that can be accessed with and without case sensitivity.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/NlsString.html#org.apache.calcite.util">NlsString</a></th>
<td class="colLast">
<div class="block">A string, optionally with <code>character set</code> and
<a href="../sql/SqlCollation.html" title="class in org.apache.calcite.sql"><code>SqlCollation</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Optionality.html#org.apache.calcite.util">Optionality</a></th>
<td class="colLast">
<div class="block">Four states that describe whether a particular behavior or
property is allowed and/or not allowed.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.util">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/PartiallyOrderedSet.Node.html#org.apache.calcite.util">PartiallyOrderedSet.Node</a></th>
<td class="colLast">
<div class="block">Holds a value, its parent nodes, and child nodes.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PartiallyOrderedSet.Ordering.html#org.apache.calcite.util">PartiallyOrderedSet.Ordering</a></th>
<td class="colLast">
<div class="block">Ordering relation.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Permutation.html#org.apache.calcite.util">Permutation</a></th>
<td class="colLast">
<div class="block">Represents a mapping which reorders elements in an array.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.html#org.apache.calcite.util">PrecedenceClimbingParser</a></th>
<td class="colLast">
<div class="block">Parser that takes a collection of tokens (atoms and operators)
and groups them together according to the operators' precedence
and associativity.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Builder.html#org.apache.calcite.util">PrecedenceClimbingParser.Builder</a></th>
<td class="colLast">
<div class="block">Fluent helper to build a parser containing a list of tokens.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Call.html#org.apache.calcite.util">PrecedenceClimbingParser.Call</a></th>
<td class="colLast">
<div class="block">A token that is a call to an operator with arguments.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Op.html#org.apache.calcite.util">PrecedenceClimbingParser.Op</a></th>
<td class="colLast">
<div class="block">An operator token.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Result.html#org.apache.calcite.util">PrecedenceClimbingParser.Result</a></th>
<td class="colLast">
<div class="block">Result of a call to <a href="PrecedenceClimbingParser.Special.html#apply(org.apache.calcite.util.PrecedenceClimbingParser,org.apache.calcite.util.PrecedenceClimbingParser.SpecialOp)"><code>PrecedenceClimbingParser.Special.apply(org.apache.calcite.util.PrecedenceClimbingParser, org.apache.calcite.util.PrecedenceClimbingParser.SpecialOp)</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Special.html#org.apache.calcite.util">PrecedenceClimbingParser.Special</a></th>
<td class="colLast">
<div class="block">Callback defining the behavior of a special function.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.SpecialOp.html#org.apache.calcite.util">PrecedenceClimbingParser.SpecialOp</a></th>
<td class="colLast">
<div class="block">An token corresponding to a special operator.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Token.html#org.apache.calcite.util">PrecedenceClimbingParser.Token</a></th>
<td class="colLast">
<div class="block">A token: either an atom, a call to an operator with arguments,
or an unmatched operator.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/PrecedenceClimbingParser.Type.html#org.apache.calcite.util">PrecedenceClimbingParser.Type</a></th>
<td class="colLast">
<div class="block">Token type.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ReflectiveVisitDispatcher.html#org.apache.calcite.util">ReflectiveVisitDispatcher</a></th>
<td class="colLast">
<div class="block">Interface for looking up methods relating to reflective visitation.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/ReflectiveVisitor.html#org.apache.calcite.util">ReflectiveVisitor</a></th>
<td class="colLast">
<div class="block">Object which can be a target for a reflective visitation (see
<a href="ReflectUtil.html#invokeVisitor(org.apache.calcite.util.ReflectiveVisitor,java.lang.Object,java.lang.Class,java.lang.String)"><code>ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String)</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/ReflectUtil.MethodDispatcher.html#org.apache.calcite.util">ReflectUtil.MethodDispatcher</a></th>
<td class="colLast">
<div class="block">Can invoke a method on an object of type E with return type T.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/SaffronProperties.html#org.apache.calcite.util">SaffronProperties</a></th>
<td class="colLast">
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">As of release 1.19,
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<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/SerializableCharset.html#org.apache.calcite.util">SerializableCharset</a></th>
<td class="colLast">
<div class="block">Serializable wrapper around a <code>Charset</code>.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Source.html#org.apache.calcite.util">Source</a></th>
<td class="colLast">
<div class="block">Source of data.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Template.html#org.apache.calcite.util">Template</a></th>
<td class="colLast">
<div class="block">String template.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/TimestampString.html#org.apache.calcite.util">TimestampString</a></th>
<td class="colLast">
<div class="block">Timestamp literal.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/TimestampWithTimeZoneString.html#org.apache.calcite.util">TimestampWithTimeZoneString</a></th>
<td class="colLast">
<div class="block">Timestamp with time-zone literal.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/TimeString.html#org.apache.calcite.util">TimeString</a></th>
<td class="colLast">
<div class="block">Time literal.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/TimeWithTimeZoneString.html#org.apache.calcite.util">TimeWithTimeZoneString</a></th>
<td class="colLast">
<div class="block">Time with time-zone literal.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/TryThreadLocal.html#org.apache.calcite.util">TryThreadLocal</a></th>
<td class="colLast">
<div class="block">Thread-local variable that returns a handle that can be closed.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/TryThreadLocal.Memo.html#org.apache.calcite.util">TryThreadLocal.Memo</a></th>
<td class="colLast">
<div class="block">Remembers to set the value back.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/UnmodifiableArrayList.html#org.apache.calcite.util">UnmodifiableArrayList</a></th>
<td class="colLast">
<div class="block">A view onto an array that cannot be modified by the client.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Util.FoundOne.html#org.apache.calcite.util">Util.FoundOne</a></th>
<td class="colLast">
<div class="block">Exception used to interrupt a tree walk of any kind.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Util.OverFinder.html#org.apache.calcite.util">Util.OverFinder</a></th>
<td class="colLast">
<div class="block">Visitor which looks for an OVER clause inside a tree of
<a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> objects.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/Util.TransformingList.html#org.apache.calcite.util">Util.TransformingList</a></th>
<td class="colLast">
<div class="block">List that returns the same number of elements as a backing list,
applying a transformation function to each one.</div>
</td>
</tr>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/XmlOutput.StringEscaper.html#org.apache.calcite.util">XmlOutput.StringEscaper</a></th>
<td class="colLast">
<div class="block">Utility for replacing special characters
with escape sequences in strings.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="class-use/XmlOutput.XMLAttrVector.html#org.apache.calcite.util">XmlOutput.XMLAttrVector</a></th>
<td class="colLast">
<div class="block">List of attribute names and values.</div>
</td>
</tr>
</tbody>
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<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="class-use/Pair.html#org.apache.calcite.util.graph">Pair</a></th>
<td class="colLast">
<div class="block">Pair of objects.</div>
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<th class="colFirst" scope="row"><a href="class-use/ImmutableBitSet.html#org.apache.calcite.util.mapping">ImmutableBitSet</a></th>
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