Package org.apache.calcite.util

Class ImmutableIntList

java.lang.Object

org.apache.calcite.runtime.AbstractImmutableList<T>

org.apache.calcite.runtime.FlatLists.AbstractFlatList<java.lang.Integer>

org.apache.calcite.util.ImmutableIntList

All Implemented Interfaces:

java.lang.Iterable<java.lang.Integer>, java.util.Collection<java.lang.Integer>, java.util.List<java.lang.Integer>, java.util.RandomAccess

Direct Known Subclasses:

ImmutableIntList.EmptyImmutableIntList

public class ImmutableIntList
extends FlatLists.AbstractFlatList<java.lang.Integer>

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

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ImmutableIntList.AbstractIndexedListIterator<E>	Extension to UnmodifiableListIterator that operates by index.
private static class	ImmutableIntList.EmptyImmutableIntList	Special sub-class of ImmutableIntList that is always empty and has only one instance.

Field Summary

Fields

Modifier and Type	Field	Description
private static ImmutableIntList	EMPTY
private static java.lang.Object[]	EMPTY_ARRAY
private int[]	ints

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ImmutableIntList(int... ints)

Method Summary

Modifier and Type	Method	Description
ImmutableIntList	append(int element)	Returns a copy of this list with one element added.
ImmutableIntList	append(java.lang.Integer e)	Returns a list that consists of a this list's elements plus a given element.
ImmutableIntList	appendAll(java.lang.Iterable<java.lang.Integer> list)	Returns a copy of this list with all of the given integers added.
private static ImmutableIntList	copyFromCollection(java.util.Collection<? extends java.lang.Number> list)
static ImmutableIntList	copyOf(java.lang.Iterable<? extends java.lang.Number> list)	Creates an ImmutableIntList from an iterable of Number.
static ImmutableIntList	copyOf(java.lang.Number... numbers)	Creates an ImmutableIntList from an array of Number.
static ImmutableIntList	copyOf(java.util.Iterator<? extends java.lang.Number> list)	Creates an ImmutableIntList from an iterator of Number.
boolean	equals(java.lang.Object obj)
java.lang.Integer	get(int index)
int	getInt(int index)
int	hashCode()
static ImmutableIntList	identity(int count)	Returns the identity list [0, ..., count - 1].
int	indexOf(int seek)
int	indexOf(java.lang.Object o)
boolean	isEmpty()
java.util.Iterator<java.lang.Integer>	iterator()
int	lastIndexOf(int seek)
int	lastIndexOf(java.lang.Object o)
java.util.ListIterator<java.lang.Integer>	listIterator()
java.util.ListIterator<java.lang.Integer>	listIterator(int index)
static ImmutableIntList	of()	Returns an empty ImmutableIntList.
static ImmutableIntList	of(int... ints)	Creates an ImmutableIntList from an array of int.
static java.util.List<java.lang.Integer>	range(int lower, int upper)	Returns a list that contains the values lower to upper - 1.
int	size()
java.lang.Object[]	toArray()
<T> T[]	toArray(T[] a)
int[]	toIntArray()	Returns an array of ints with the same contents as this list.
java.lang.String	toString()

Methods inherited from class org.apache.calcite.runtime.FlatLists.AbstractFlatList

toList

Methods inherited from class org.apache.calcite.runtime.AbstractImmutableList

add, add, addAll, addAll, clear, contains, containsAll, remove, remove, removeAll, retainAll, set, subList

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

replaceAll, sort, spliterator

Field Detail

ints

private final int[] ints

EMPTY_ARRAY

private static final java.lang.Object[] EMPTY_ARRAY

EMPTY

private static final ImmutableIntList EMPTY

Constructor Detail

ImmutableIntList

private ImmutableIntList(int... ints)

Method Detail

of

public static ImmutableIntList of()

Returns an empty ImmutableIntList.

of

public static ImmutableIntList of(int... ints)

Creates an ImmutableIntList from an array of int.

copyOf

public static ImmutableIntList copyOf(java.lang.Number... numbers)

Creates an ImmutableIntList from an array of Number.

copyOf

public static ImmutableIntList copyOf(java.lang.Iterable<? extends java.lang.Number> list)

Creates an ImmutableIntList from an iterable of Number.

copyOf

public static ImmutableIntList copyOf(java.util.Iterator<? extends java.lang.Number> list)

Creates an ImmutableIntList from an iterator of Number.

copyFromCollection

private static ImmutableIntList copyFromCollection(java.util.Collection<? extends java.lang.Number> list)

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<java.lang.Integer>

Specified by:

hashCode in interface java.util.List<java.lang.Integer>

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Collection<java.lang.Integer>

Specified by:

equals in interface java.util.List<java.lang.Integer>

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<java.lang.Integer>

Specified by:

isEmpty in interface java.util.List<java.lang.Integer>

Overrides:

isEmpty in class AbstractImmutableList<java.lang.Integer>

size

public int size()

toArray

public java.lang.Object[] toArray()

toArray

public <T> T[] toArray(T[] a)

toIntArray

public int[] toIntArray()

Returns an array of ints with the same contents as this list.

get

public java.lang.Integer get(int index)

getInt

public int getInt(int index)

iterator

public java.util.Iterator<java.lang.Integer> iterator()

Specified by:

iterator in interface java.util.Collection<java.lang.Integer>

Specified by:

iterator in interface java.lang.Iterable<java.lang.Integer>

Specified by:

iterator in interface java.util.List<java.lang.Integer>

Overrides:

iterator in class AbstractImmutableList<java.lang.Integer>

listIterator

public java.util.ListIterator<java.lang.Integer> listIterator()

Specified by:

listIterator in interface java.util.List<java.lang.Integer>

Overrides:

listIterator in class AbstractImmutableList<java.lang.Integer>

listIterator

public java.util.ListIterator<java.lang.Integer> listIterator(int index)

Specified by:

listIterator in interface java.util.List<java.lang.Integer>

Overrides:

listIterator in class AbstractImmutableList<java.lang.Integer>

indexOf

public int indexOf(java.lang.Object o)

indexOf

public int indexOf(int seek)

lastIndexOf

public int lastIndexOf(java.lang.Object o)

lastIndexOf

public int lastIndexOf(int seek)

append

public ImmutableIntList append(java.lang.Integer e)

Description copied from class: FlatLists.AbstractFlatList

Returns a list that consists of a this list's elements plus a given element.

Specified by:

append in class FlatLists.AbstractFlatList<java.lang.Integer>

append

public ImmutableIntList append(int element)

Returns a copy of this list with one element added.

range

public static java.util.List<java.lang.Integer> range(int lower,
                                                      int upper)

Returns a list that contains the values lower to upper - 1.

For example, range(1, 3) contains [1, 2].

identity

public static ImmutableIntList identity(int count)

Returns the identity list [0, ..., count - 1].

See Also:

Mappings.isIdentity(List, int)

appendAll

public ImmutableIntList appendAll(java.lang.Iterable<java.lang.Integer> list)

Returns a copy of this list with all of the given integers added.