it.unimi.dsi.fastutil.ints

Class IntLists.EmptyList

java.lang.Object

java.util.AbstractCollection<java.lang.Integer>

it.unimi.dsi.fastutil.ints.AbstractIntCollection

it.unimi.dsi.fastutil.ints.IntCollections.EmptyCollection

it.unimi.dsi.fastutil.ints.IntLists.EmptyList

All Implemented Interfaces:

IntCollection, IntIterable, IntList, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<java.util.List<? extends java.lang.Integer>>, java.lang.Iterable<java.lang.Integer>, java.util.Collection<java.lang.Integer>, java.util.List<java.lang.Integer>, java.util.RandomAccess

Enclosing class:

IntLists

public static class IntLists.EmptyList
extends IntCollections.EmptyCollection
implements IntList, java.util.RandomAccess, java.io.Serializable, java.lang.Cloneable

An immutable class representing an empty type-specific list.

This class may be useful to implement your own in case you subclass a type-specific list.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmptyList()

Method Summary

Modifier and Type	Method and Description
boolean	add(java.lang.Integer k) Deprecated. Please use the corresponding type-specific method instead.
void	add(int index, int k) Inserts the specified element at the specified position in this list (optional operation).
void	add(int index, java.lang.Integer k) Deprecated. Please use the corresponding type-specific method instead.
boolean	addAll(int i, java.util.Collection<? extends java.lang.Integer> c)
boolean	addAll(int i, IntCollection c) Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
boolean	addAll(int i, IntList c) Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
boolean	addAll(IntList c) Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
void	addElements(int index, int[] a) Add (hopefully quickly) elements to this type-specific list.
void	addElements(int index, int[] a, int offset, int length) Add (hopefully quickly) elements to this type-specific list.
java.lang.Object	clone()
int	compareTo(java.util.List<? extends java.lang.Integer> o)
boolean	equals(java.lang.Object o)
java.lang.Integer	get(int index) Deprecated. Please use the corresponding type-specific method instead.
void	getElements(int from, int[] a, int offset, int length) Copies (hopefully quickly) elements of this type-specific list into the given array.
int	getInt(int i) Returns the element at the specified position in this list.
int	hashCode()
int	indexOf(int k) Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	indexOf(java.lang.Object k) Deprecated. Please use the corresponding type-specific method instead.
IntListIterator	iterator() Returns a type-specific iterator on the elements of this collection.
int	lastIndexOf(int k) Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
int	lastIndexOf(java.lang.Object k) Deprecated. Please use the corresponding type-specific method instead.
IntListIterator	listIterator() Returns a type-specific list iterator on the list.
IntListIterator	listIterator(int i) Returns a type-specific list iterator on the list starting at a given index.
boolean	rem(int k) Removes a single instance of the specified element from this collection, if it is present (optional operation).
java.lang.Integer	remove(int k) Deprecated. Please use the corresponding type-specific method instead.
void	removeElements(int from, int to) Removes (hopefully quickly) elements of this type-specific list.
int	removeInt(int i) Removes the element at the specified position in this list (optional operation).
void	replaceAll(java.util.function.IntUnaryOperator operator) Replaces each element of this list with the result of applying the operator to that element.
void	replaceAll(java.util.function.UnaryOperator<java.lang.Integer> operator) Deprecated.
int	set(int index, int k) Replaces the element at the specified position in this list with the specified element (optional operation).
java.lang.Integer	set(int index, java.lang.Integer k) Deprecated. Please use the corresponding type-specific method instead.
void	setElements(int[] a) Set (hopefully quickly) elements to match the array given.
void	setElements(int index, int[] a) Set (hopefully quickly) elements to match the array given.
void	setElements(int index, int[] a, int offset, int length) Set (hopefully quickly) elements to match the array given.
void	size(int s) Sets the size of this list.
void	sort(java.util.Comparator<? super java.lang.Integer> comparator) Deprecated.
void	sort(it.unimi.dsi.fastutil.ints.IntComparator comparator) Sort a list using a type-specific comparator.
IntList	subList(int from, int to) Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.
java.lang.String	toString()
void	unstableSort(java.util.Comparator<? super java.lang.Integer> comparator) Deprecated.
void	unstableSort(it.unimi.dsi.fastutil.ints.IntComparator comparator) Sorts this list using a sort not assured to be stable.

Methods inherited from class it.unimi.dsi.fastutil.ints.IntCollections.EmptyCollection

addAll, addAll, clear, contains, containsAll, containsAll, forEach, forEach, removeAll, removeAll, removeIf, removeIf, retainAll, retainAll, size, spliterator, toArray, toArray, toIntArray, toIntArray

Methods inherited from class it.unimi.dsi.fastutil.ints.AbstractIntCollection

add, contains, forEach, remove, removeIf, toArray

Methods inherited from class java.util.AbstractCollection

isEmpty

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntList

add, contains, of, of, of, of, of, remove, replaceAll, spliterator

Methods inherited from interface java.util.List

addAll, clear, containsAll, isEmpty, removeAll, retainAll, size, toArray, toArray

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntCollection

addAll, contains, containsAll, intIterator, intParallelStream, intSpliterator, intStream, parallelStream, removeAll, removeIf, removeIf, removeIf, retainAll, stream, toArray, toIntArray, toIntArray

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntIterable

forEach, forEach, forEach

Constructor Detail

EmptyList

protected EmptyList()

Method Detail

getInt

public int getInt(int i)

Description copied from interface: IntList

Returns the element at the specified position in this list.

Specified by:

getInt in interface IntList

See Also:

List.get(int)

rem

public boolean rem(int k)

Description copied from class: AbstractIntCollection

Removes a single instance of the specified element from this collection, if it is present (optional operation).

Note that this method should be called remove(), but the clash with the similarly named index-based method in the List interface forces us to use a distinguished name. For simplicity, the set interfaces reinstates remove().

Specified by:

rem in interface IntCollection

Overrides:

rem in class AbstractIntCollection

See Also:

Collection.remove(Object)

removeInt

public int removeInt(int i)

Description copied from interface: IntList

Removes the element at the specified position in this list (optional operation).

Specified by:

removeInt in interface IntList

See Also:

List.remove(int)

add

public void add(int index,
                int k)

Description copied from interface: IntList

Inserts the specified element at the specified position in this list (optional operation).

Specified by:

add in interface IntList

See Also:

List.add(int,Object)

set

public int set(int index,
               int k)

Description copied from interface: IntList

Replaces the element at the specified position in this list with the specified element (optional operation).

Specified by:

set in interface IntList

See Also:

List.set(int,Object)

indexOf

public int indexOf(int k)

Description copied from interface: IntList

Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.

Specified by:

indexOf in interface IntList

See Also:

List.indexOf(Object)

lastIndexOf

public int lastIndexOf(int k)

Description copied from interface: IntList

Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.

Specified by:

lastIndexOf in interface IntList

See Also:

List.lastIndexOf(Object)

addAll

public boolean addAll(int i,
                      java.util.Collection<? extends java.lang.Integer> c)

Specified by:

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

replaceAll

@Deprecated
public void replaceAll(java.util.function.UnaryOperator<java.lang.Integer> operator)

Deprecated.

Description copied from interface: IntList

Specified by:

replaceAll in interface IntList

Specified by:

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

replaceAll

public void replaceAll(java.util.function.IntUnaryOperator operator)

Description copied from interface: IntList

Replaces each element of this list with the result of applying the operator to that element.

Specified by:

replaceAll in interface IntList

Parameters:

operator - the operator to apply to each element.

See Also:

List.replaceAll(java.util.function.UnaryOperator<E>)

addAll

public boolean addAll(IntList c)

Description copied from interface: IntList

Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).

Specified by:

addAll in interface IntList

See Also:

List.addAll(Collection)

addAll

public boolean addAll(int i,
                      IntCollection c)

Description copied from interface: IntList

Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).

Specified by:

addAll in interface IntList

See Also:

List.addAll(int,java.util.Collection)

addAll

public boolean addAll(int i,
                      IntList c)

Description copied from interface: IntList

Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).

Specified by:

addAll in interface IntList

See Also:

List.addAll(int,Collection)

add

@Deprecated
public void add(int index,
                            java.lang.Integer k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

add in interface IntList

Specified by:

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

get

@Deprecated
public java.lang.Integer get(int index)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

get in interface IntList

Specified by:

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

add

@Deprecated
public boolean add(java.lang.Integer k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

add in interface IntCollection

Specified by:

add in interface IntList

Specified by:

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

Specified by:

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

Overrides:

add in class AbstractIntCollection

set

@Deprecated
public java.lang.Integer set(int index,
                                         java.lang.Integer k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

set in interface IntList

Specified by:

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

remove

@Deprecated
public java.lang.Integer remove(int k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

remove in interface IntList

Specified by:

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

indexOf

@Deprecated
public int indexOf(java.lang.Object k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

indexOf in interface IntList

Specified by:

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

lastIndexOf

@Deprecated
public int lastIndexOf(java.lang.Object k)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

lastIndexOf in interface IntList

Specified by:

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

sort

public void sort(it.unimi.dsi.fastutil.ints.IntComparator comparator)

Description copied from interface: IntList

Sort a list using a type-specific comparator.

Pass null to sort using natural ordering.

Specified by:

sort in interface IntList

See Also:

List.sort(java.util.Comparator)

unstableSort

public void unstableSort(it.unimi.dsi.fastutil.ints.IntComparator comparator)

Description copied from interface: IntList

Sorts this list using a sort not assured to be stable.

Pass null to sort using natural ordering.

This differs from List.sort(java.util.Comparator) in that the results are not assured to be stable, but may be a bit faster.

Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.

Specified by:

unstableSort in interface IntList

sort

@Deprecated
public void sort(java.util.Comparator<? super java.lang.Integer> comparator)

Deprecated.

Description copied from interface: IntList

Specified by:

sort in interface IntList

Specified by:

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

unstableSort

@Deprecated
public void unstableSort(java.util.Comparator<? super java.lang.Integer> comparator)

Deprecated.

Description copied from interface: IntList

Sorts this list using a sort not assured to be stable.

Specified by:

unstableSort in interface IntList

listIterator

public IntListIterator listIterator()

Description copied from interface: IntList

Returns a type-specific list iterator on the list.

Specified by:

listIterator in interface IntList

Specified by:

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

See Also:

List.listIterator()

iterator

public IntListIterator iterator()

Description copied from interface: IntCollection

Returns a type-specific iterator on the elements of this collection.

Specified by:

iterator in interface IntCollection

Specified by:

iterator in interface IntIterable

Specified by:

iterator in interface IntList

Specified by:

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

Specified by:

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

Specified by:

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

Overrides:

iterator in class IntCollections.EmptyCollection

Returns:

a type-specific iterator on the elements of this collection.

See Also:

Iterable.iterator()

listIterator

public IntListIterator listIterator(int i)

Description copied from interface: IntList

Returns a type-specific list iterator on the list starting at a given index.

Specified by:

listIterator in interface IntList

Specified by:

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

See Also:

List.listIterator(int)

subList

public IntList subList(int from,
                       int to)

Description copied from interface: IntList

Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.

Specified by:

subList in interface IntList

Specified by:

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

See Also:

List.subList(int,int)

getElements

public void getElements(int from,
                        int[] a,
                        int offset,
                        int length)

Description copied from interface: IntList

Copies (hopefully quickly) elements of this type-specific list into the given array.

Specified by:

getElements in interface IntList

Parameters:

from - the start index (inclusive).

a - the destination array.

offset - the offset into the destination array where to store the first element copied.

length - the number of elements to be copied.

removeElements

public void removeElements(int from,
                           int to)

Description copied from interface: IntList

Removes (hopefully quickly) elements of this type-specific list.

Specified by:

removeElements in interface IntList

Parameters:

from - the start index (inclusive).

to - the end index (exclusive).

addElements

public void addElements(int index,
                        int[] a,
                        int offset,
                        int length)

Description copied from interface: IntList

Add (hopefully quickly) elements to this type-specific list.

Specified by:

addElements in interface IntList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

offset - the offset of the first element to add.

length - the number of elements to add.

addElements

public void addElements(int index,
                        int[] a)

Description copied from interface: IntList

Add (hopefully quickly) elements to this type-specific list.

Specified by:

addElements in interface IntList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

setElements

public void setElements(int[] a)

Description copied from interface: IntList

Set (hopefully quickly) elements to match the array given.

Specified by:

setElements in interface IntList

Parameters:

a - the array containing the elements.

setElements

public void setElements(int index,
                        int[] a)

Description copied from interface: IntList

Set (hopefully quickly) elements to match the array given.

Specified by:

setElements in interface IntList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements.

setElements

public void setElements(int index,
                        int[] a,
                        int offset,
                        int length)

Description copied from interface: IntList

Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by

 ListIterator iter = listIterator(index);
 int i = 0;
 while (i < length) {
   iter.next();
   iter.set(a[offset + i++]);
 }
 

However, the exact implementation may be more efficient, taking into account whether random access is faster or not, or at the discretion of subclasses, abuse internals.

Specified by:

setElements in interface IntList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements

offset - the offset of the first element to add.

length - the number of elements to add.

size

public void size(int s)

Description copied from interface: IntList

Sets the size of this list.

If the specified size is smaller than the current size, the last elements are discarded. Otherwise, they are filled with 0/null/false.

Specified by:

size in interface IntList

Parameters:

s - the new size.

compareTo

public int compareTo(java.util.List<? extends java.lang.Integer> o)

Specified by:

compareTo in interface java.lang.Comparable<java.util.List<? extends java.lang.Integer>>

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

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 IntCollections.EmptyCollection

equals

public boolean equals(java.lang.Object o)

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 IntCollections.EmptyCollection

toString

public java.lang.String toString()

Overrides:

toString in class AbstractIntCollection