Uses of Package
org.apache.calcite.util

Packages that use org.apache.calcite.util

Package	Description
org.apache.calcite.adapter.cassandra	Cassandra query provider.
org.apache.calcite.adapter.clone	Provides utility classes.
org.apache.calcite.adapter.csv	Calcite query provider that reads from CSV (comma-separated value) files.
org.apache.calcite.adapter.druid	Query provider based on a Druid database.
org.apache.calcite.adapter.elasticsearch	Query provider based on an Elasticsearch2 DB.
org.apache.calcite.adapter.enumerable	Query optimizer rules for Java calling convention.
org.apache.calcite.adapter.file	Calcite query provider that reads from web tables (HTML).
org.apache.calcite.adapter.geode.rel	Query provider based on Apache Geode (Gemfire) In Memory Data Grid
org.apache.calcite.adapter.jdbc	Query provider based on a JDBC data source.
org.apache.calcite.adapter.mongodb	Query provider based on a MongoDB database.
org.apache.calcite.adapter.pig	Pig query provider.
org.apache.calcite.interpreter	Provides an implementation of relational expressions using an interpreter.
org.apache.calcite.jdbc	JDBC driver for Calcite.
org.apache.calcite.materialize	Management of materialized query results.
org.apache.calcite.model	Provides model files, in JSON format, defining schemas and other metadata.
org.apache.calcite.piglet	Piglet, a Pig-like language.
org.apache.calcite.plan	Defines interfaces for constructing rule-based optimizers of relational expressions.
org.apache.calcite.plan.volcano	Optimizes relational expressions.
org.apache.calcite.prepare	Preparation of queries (parsing, planning and implementation).
org.apache.calcite.profile	Utilities to analyze data sets.
org.apache.calcite.rel	Defines relational expressions.
org.apache.calcite.rel.core	Defines core relational expressions.
org.apache.calcite.rel.externalize	Facilities to externalize RelNodes to and from XML and JSON format.
org.apache.calcite.rel.logical	Defines logical relational expressions.
org.apache.calcite.rel.metadata	Defines metadata interfaces and utilities for relational expressions.
org.apache.calcite.rel.mutable	Defines mutable relational expressions.
org.apache.calcite.rel.rel2sql	Translates a relational expression to SQL parse tree.
org.apache.calcite.rel.rules	Provides a core set of planner rules.
org.apache.calcite.rel.type	Defines a type system for relational expressions.
org.apache.calcite.rex	Provides a language for representing row-expressions.
org.apache.calcite.runtime	Utilities required at runtime.
org.apache.calcite.schema	Schema SPI.
org.apache.calcite.schema.impl	Utilities to help implement Calcite's SPIs.
org.apache.calcite.sql	Provides a SQL parser and object model.
org.apache.calcite.sql.ddl	Parse tree for SQL DDL statements.
org.apache.calcite.sql.fun	Defines the set of standard SQL row-level functions and operators.
org.apache.calcite.sql.parser	Provides a SQL parser.
org.apache.calcite.sql.type	SQL type system.
org.apache.calcite.sql.util	Utility classes for the SQL object model, parsing, and validation.
org.apache.calcite.sql.validate	SQL validation.
org.apache.calcite.sql2rel	Translates a SQL parse tree to relational expression.
org.apache.calcite.tools	Provides utility classes.
org.apache.calcite.util	Provides utility classes.
org.apache.calcite.util.graph	Graph-theoretic algorithms and data structures.
org.apache.calcite.util.mapping	Support for algebraic maps.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.cassandra

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.clone

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.csv

Class	Description
Source	Source of data.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.druid

Class	Description
Holder	A mutable slot that can contain one object.
ImmutableBitSet	An immutable list of bits.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.elasticsearch

Class	Description
ImmutableBitSet	An immutable list of bits.
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.enumerable

Class	Description
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.file

Class	Description
Source	Source of data.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.geode.rel

Class	Description
ImmutableBitSet	An immutable list of bits.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.jdbc

Class	Description
ImmutableBitSet	An immutable list of bits.
Pair	Pair of objects.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.mongodb

Class	Description
ImmutableBitSet	An immutable list of bits.
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.adapter.pig

Class	Description
ImmutableBitSet	An immutable list of bits.

Classes in org.apache.calcite.util used by org.apache.calcite.interpreter

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.
ReflectiveVisitDispatcher	Interface for looking up methods relating to reflective visitation.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).

Classes in org.apache.calcite.util used by org.apache.calcite.jdbc

Class	Description
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
NameMap	Map whose keys are names and can be accessed with and without case sensitivity.
NameMultimap	Multimap whose keys are names and can be accessed with and without case sensitivity.
NameSet	Set of names that can be accessed with and without case sensitivity.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.materialize

Class	Description
ImmutableBitSet	An immutable list of bits.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.model

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.piglet

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.plan

Class	Description
CancelFlag	CancelFlag is used to post and check cancellation requests.
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
ImmutableBitSet	An immutable list of bits.
ImmutableBitSet.Builder	Builder.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.
Permutation	Represents a mapping which reorders elements in an array.

Classes in org.apache.calcite.util used by org.apache.calcite.plan.volcano

Class	Description
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.prepare

Class	Description
ImmutableBitSet	An immutable list of bits.
Pair	Pair of objects.
TryThreadLocal	Thread-local variable that returns a handle that can be closed.

Classes in org.apache.calcite.util used by org.apache.calcite.profile

Class	Description
ImmutableBitSet	An immutable list of bits.
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
Pair	Pair of objects.
PartiallyOrderedSet	Partially-ordered set.
PartiallyOrderedSet.Ordering	Ordering relation.

Classes in org.apache.calcite.util used by org.apache.calcite.rel

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.core

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.
Permutation	Represents a mapping which reorders elements in an array.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.externalize

Class	Description
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
Pair	Pair of objects.
XmlOutput	Streaming XML output.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.logical

Class	Description
ImmutableBitSet	An immutable list of bits.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.metadata

Class	Description
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
ImmutableBitSet	An immutable list of bits.
ImmutableBitSet.Builder	Builder.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).

Classes in org.apache.calcite.util used by org.apache.calcite.rel.mutable

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.rel2sql

Class	Description
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).
ReflectUtil.MethodDispatcher	Can invoke a method on an object of type E with return type T.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.rules

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableBitSet.Builder	Builder.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.rel.type

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.rex

Class	Description
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
DateString	Date literal.
Litmus	Callback to be called when a test for validity succeeds or fails.
NlsString	A string, optionally with character set and SqlCollation.
Pair	Pair of objects.
Permutation	Represents a mapping which reorders elements in an array.
TimestampString	Timestamp literal.
TimeString	Time literal.

Classes in org.apache.calcite.util used by org.apache.calcite.runtime

Class	Description
Holder	A mutable slot that can contain one object.

Classes in org.apache.calcite.util used by org.apache.calcite.schema

Class	Description
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.schema.impl

Class	Description
ImmutableIntList	An immutable list of Integer values backed by an array of ints.

Classes in org.apache.calcite.util used by org.apache.calcite.sql

Class	Description
BarfingInvocationHandler	A class derived from BarfingInvocationHandler handles a method call by looking for a method in itself with identical parameters.
BitString	String of bits.
DateString	Date literal.
Litmus	Callback to be called when a test for validity succeeds or fails.
NlsString	A string, optionally with character set and SqlCollation.
Optionality	Four states that describe whether a particular behavior or property is allowed and/or not allowed.
PrecedenceClimbingParser	Parser that takes a collection of tokens (atoms and operators) and groups them together according to the operators' precedence and associativity.
PrecedenceClimbingParser.Token	A token: either an atom, a call to an operator with arguments, or an unmatched operator.
SerializableCharset	Serializable wrapper around a Charset.
TimestampString	Timestamp literal.
TimeString	Time literal.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.ddl

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.fun

Class	Description
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.parser

Class	Description
CalciteParserException	Tagging interface to allow a SqlParseException to be identified without adding a dependency on it from client-side code.
PrecedenceClimbingParser	Parser that takes a collection of tokens (atoms and operators) and groups them together according to the operators' precedence and associativity.
PrecedenceClimbingParser.Token	A token: either an atom, a call to an operator with arguments, or an unmatched operator.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.type

Class	Description
SerializableCharset	Serializable wrapper around a Charset.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.util

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.sql.validate

Class	Description
CalciteValidatorException	Tagging interface to allow a SqlValidatorException to be identified without adding a dependency on it from client-side code.
ImmutableBitSet	An immutable list of bits.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
Optionality	Four states that describe whether a particular behavior or property is allowed and/or not allowed.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.sql2rel

Class	Description
Holder	A mutable slot that can contain one object.
ImmutableBitSet	An immutable list of bits.
Litmus	Callback to be called when a test for validity succeeds or fails.
Pair	Pair of objects.
ReflectiveVisitDispatcher	Interface for looking up methods relating to reflective visitation.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).
ReflectUtil.MethodDispatcher	Can invoke a method on an object of type E with return type T.
Util.FoundOne	Exception used to interrupt a tree walk of any kind.

Classes in org.apache.calcite.util used by org.apache.calcite.tools

Class	Description
Holder	A mutable slot that can contain one object.
ImmutableBitSet	An immutable list of bits.
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.util

Class	Description
Benchmark.Statistician	Collects statistics for a test that is run multiple times.
BitString	String of bits.
BuiltInMethod	Built-in methods.
CaseInsensitiveComparator	Comparator that compares all strings differently, but if two strings are equal in case-insensitive match they are right next to each other.
ChunkList.ChunkListIterator	Iterator over a ChunkList.
ClosableAllocation	ClosableAllocation represents an object which requires a call in order to release resources early rather than waiting for finalization.
ClosableAllocationOwner	ClosableAllocationOwner represents an object which can take ownership of ClosableAllocations and guarantee that they will be cleaned up correctly when its own closeAllocation() is called.
CompositeList	Read-only list that is the concatenation of sub-lists.
CompositeMap	Unmodifiable view onto multiple backing maps.
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
DateString	Date literal.
Glossary	A collection of terms.
Holder	A mutable slot that can contain one object.
ImmutableBitSet	An immutable list of bits.
ImmutableBitSet.Builder	Builder.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
ImmutableNullableList.Builder	A builder for creating immutable nullable list instances.
IntegerIntervalSet.Handler	A callback.
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
Litmus	Callback to be called when a test for validity succeeds or fails.
NameMap	Map whose keys are names and can be accessed with and without case sensitivity.
NameSet	Set of names that can be accessed with and without case sensitivity.
NlsString	A string, optionally with character set and SqlCollation.
Optionality	Four states that describe whether a particular behavior or property is allowed and/or not allowed.
Pair	Pair of objects.
PartiallyOrderedSet.Node	Holds a value, its parent nodes, and child nodes.
PartiallyOrderedSet.Ordering	Ordering relation.
Permutation	Represents a mapping which reorders elements in an array.
PrecedenceClimbingParser	Parser that takes a collection of tokens (atoms and operators) and groups them together according to the operators' precedence and associativity.
PrecedenceClimbingParser.Builder	Fluent helper to build a parser containing a list of tokens.
PrecedenceClimbingParser.Call	A token that is a call to an operator with arguments.
PrecedenceClimbingParser.Op	An operator token.
PrecedenceClimbingParser.Result	Result of a call to PrecedenceClimbingParser.Special.apply(org.apache.calcite.util.PrecedenceClimbingParser, org.apache.calcite.util.PrecedenceClimbingParser.SpecialOp).
PrecedenceClimbingParser.Special	Callback defining the behavior of a special function.
PrecedenceClimbingParser.SpecialOp	An token corresponding to a special operator.
PrecedenceClimbingParser.Token	A token: either an atom, a call to an operator with arguments, or an unmatched operator.
PrecedenceClimbingParser.Type	Token type.
ReflectiveVisitDispatcher	Interface for looking up methods relating to reflective visitation.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).
ReflectUtil.MethodDispatcher	Can invoke a method on an object of type E with return type T.
SaffronProperties	Provides an environment for debugging information, et cetera, used by saffron.
SerializableCharset	Serializable wrapper around a Charset.
Source	Source of data.
Template	String template.
TimestampString	Timestamp literal.
TimestampWithTimeZoneString	Timestamp with time-zone literal.
TimeString	Time literal.
TimeWithTimeZoneString	Time with time-zone literal.
TryThreadLocal	Thread-local variable that returns a handle that can be closed.
TryThreadLocal.Memo	Remembers to set the value back.
UnmodifiableArrayList	A view onto an array that cannot be modified by the client.
Util.FoundOne	Exception used to interrupt a tree walk of any kind.
Util.OverFinder	Visitor which looks for an OVER clause inside a tree of SqlNode objects.
Util.TransformingList	List that returns the same number of elements as a backing list, applying a transformation function to each one.
XmlOutput.StringEscaper	Utility for replacing special characters with escape sequences in strings.
XmlOutput.XMLAttrVector	List of attribute names and values.

Classes in org.apache.calcite.util used by org.apache.calcite.util.graph

Class	Description
Pair	Pair of objects.

Classes in org.apache.calcite.util used by org.apache.calcite.util.mapping

Class	Description
ImmutableBitSet	An immutable list of bits.