Package it.unimi.dsi.fastutil.booleans

Class BooleanLists.EmptyList

java.lang.Object

java.util.AbstractCollection<Boolean>

it.unimi.dsi.fastutil.booleans.AbstractBooleanCollection

it.unimi.dsi.fastutil.booleans.BooleanCollections.EmptyCollection

it.unimi.dsi.fastutil.booleans.BooleanLists.EmptyList

All Implemented Interfaces:

BooleanCollection, BooleanIterable, BooleanList, Serializable, Cloneable, Comparable<List<? extends Boolean>>, Iterable<Boolean>, Collection<Boolean>, List<Boolean>, RandomAccess

Enclosing class:

BooleanLists

public static class BooleanLists.EmptyList
extends BooleanCollections.EmptyCollection
implements BooleanList, RandomAccess, Serializable, 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

Method Summary

Modifier and Type	Method	Description
void	add(int index, boolean k)	Inserts the specified element at the specified position in this list (optional operation).
void	add(int index, Boolean k)	Deprecated. Please use the corresponding type-specific method instead.
boolean	add(Boolean k)	Deprecated. Please use the corresponding type-specific method instead.
boolean	addAll(int i, BooleanCollection 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, BooleanList 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(int i, Collection<? extends Boolean> c)
boolean	addAll(BooleanList 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, boolean[] a)	Add (hopefully quickly) elements to this type-specific list.
void	addElements(int index, boolean[] a, int offset, int length)	Add (hopefully quickly) elements to this type-specific list.
Object	clone()
int	compareTo(List<? extends Boolean> o)
boolean	equals(Object o)
Boolean	get(int index)	Deprecated. Please use the corresponding type-specific method instead.
boolean	getBoolean(int i)	Returns the element at the specified position in this list.
void	getElements(int from, boolean[] a, int offset, int length)	Copies (hopefully quickly) elements of this type-specific list into the given array.
int	hashCode()
int	indexOf(boolean 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(Object k)	Deprecated. Please use the corresponding type-specific method instead.
BooleanListIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
int	lastIndexOf(boolean 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(Object k)	Deprecated. Please use the corresponding type-specific method instead.
BooleanListIterator	listIterator()	Returns a type-specific list iterator on the list.
BooleanListIterator	listIterator(int i)	Returns a type-specific list iterator on the list starting at a given index.
boolean	rem(boolean k)	Removes a single instance of the specified element from this collection, if it is present (optional operation).
Boolean	remove(int k)	Deprecated. Please use the corresponding type-specific method instead.
boolean	removeBoolean(int i)	Removes the element at the specified position in this list (optional operation).
void	removeElements(int from, int to)	Removes (hopefully quickly) elements of this type-specific list.
void	replaceAll(BooleanUnaryOperator operator)	Replaces each element of this list with the result of applying the operator to that element.
void	replaceAll(UnaryOperator<Boolean> operator)	Deprecated.
boolean	set(int index, boolean k)	Replaces the element at the specified position in this list with the specified element (optional operation).
Boolean	set(int index, Boolean k)	Deprecated. Please use the corresponding type-specific method instead.
void	setElements(boolean[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, boolean[] a)	Set (hopefully quickly) elements to match the array given.
void	setElements(int index, boolean[] 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(BooleanComparator comparator)	Sort a list using a type-specific comparator.
void	sort(Comparator<? super Boolean> comparator)	Deprecated.
BooleanList	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.
String	toString()
void	unstableSort(BooleanComparator comparator)	Sorts this list using a sort not assured to be stable.
void	unstableSort(Comparator<? super Boolean> comparator)	Deprecated.

Methods inherited from class it.unimi.dsi.fastutil.booleans.BooleanCollections.EmptyCollection

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

Methods inherited from class it.unimi.dsi.fastutil.booleans.AbstractBooleanCollection

add, contains, remove, toArray

Methods inherited from class java.util.AbstractCollection

isEmpty

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.booleans.BooleanCollection

addAll, contains, containsAll, removeAll, removeIf, removeIf, retainAll, toArray, toBooleanArray, toBooleanArray

Methods inherited from interface it.unimi.dsi.fastutil.booleans.BooleanIterable

forEach, forEach

Methods inherited from interface it.unimi.dsi.fastutil.booleans.BooleanList

add, contains, remove, spliterator

Methods inherited from interface java.util.Collection

parallelStream, stream, toArray

Methods inherited from interface java.util.List

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

Method Details

getBoolean

public boolean getBoolean(int i)

Description copied from interface: BooleanList

Returns the element at the specified position in this list.

Specified by:

getBoolean in interface BooleanList

See Also:

• List.get(int)

rem

public boolean rem(boolean k)

Description copied from class: AbstractBooleanCollection

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 BooleanCollection

Overrides:

rem in class AbstractBooleanCollection

See Also:

• Collection.remove(Object)

removeBoolean

public boolean removeBoolean(int i)

Description copied from interface: BooleanList

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

Specified by:

removeBoolean in interface BooleanList

See Also:

• List.remove(int)

add

public void add(int index,
 boolean k)

Description copied from interface: BooleanList

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

Specified by:

add in interface BooleanList

See Also:

• List.add(int,Object)

set

public boolean set(int index,
 boolean k)

Description copied from interface: BooleanList

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

Specified by:

set in interface BooleanList

See Also:

• List.set(int,Object)

indexOf

public int indexOf(boolean k)

Description copied from interface: BooleanList

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 BooleanList

See Also:

• List.indexOf(Object)

lastIndexOf

public int lastIndexOf(boolean k)

Description copied from interface: BooleanList

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 BooleanList

See Also:

• List.lastIndexOf(Object)

addAll

public boolean addAll(int i,
 Collection<? extends Boolean> c)

Specified by:

addAll in interface List<Boolean>

replaceAll

@Deprecated
public void replaceAll(UnaryOperator<Boolean> operator)

Deprecated.

Description copied from interface: BooleanList

Specified by:

replaceAll in interface BooleanList

Specified by:

replaceAll in interface List<Boolean>

replaceAll

public void replaceAll(BooleanUnaryOperator operator)

Description copied from interface: BooleanList

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

Specified by:

replaceAll in interface BooleanList

Parameters:

operator - the operator to apply to each element.

See Also:

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

addAll

public boolean addAll(BooleanList c)

Description copied from interface: BooleanList

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 BooleanList

See Also:

• List.addAll(Collection)

addAll

public boolean addAll(int i,
 BooleanCollection c)

Description copied from interface: BooleanList

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 BooleanList

See Also:

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

addAll

public boolean addAll(int i,
 BooleanList c)

Description copied from interface: BooleanList

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 BooleanList

See Also:

• List.addAll(int,Collection)

add

@Deprecated
public void add(int index,
 Boolean k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

add in interface BooleanList

Specified by:

add in interface List<Boolean>

get

@Deprecated
public Boolean get(int index)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

get in interface BooleanList

Specified by:

get in interface List<Boolean>

add

@Deprecated
public boolean add(Boolean k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

add in interface BooleanCollection

Specified by:

add in interface BooleanList

Specified by:

add in interface Collection<Boolean>

Specified by:

add in interface List<Boolean>

Overrides:

add in class AbstractBooleanCollection

set

@Deprecated
public Boolean set(int index,
 Boolean k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

set in interface BooleanList

Specified by:

set in interface List<Boolean>

remove

@Deprecated
public Boolean remove(int k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

remove in interface BooleanList

Specified by:

remove in interface List<Boolean>

indexOf

@Deprecated
public int indexOf(Object k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

indexOf in interface BooleanList

Specified by:

indexOf in interface List<Boolean>

lastIndexOf

@Deprecated
public int lastIndexOf(Object k)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

lastIndexOf in interface BooleanList

Specified by:

lastIndexOf in interface List<Boolean>

sort

public void sort(BooleanComparator comparator)

Description copied from interface: BooleanList

Sort a list using a type-specific comparator.

Pass null to sort using natural ordering.

Specified by:

sort in interface BooleanList

See Also:

• List.sort(java.util.Comparator)

unstableSort

public void unstableSort(BooleanComparator comparator)

Description copied from interface: BooleanList

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 BooleanList

sort

@Deprecated
public void sort(Comparator<? super Boolean> comparator)

Deprecated.

Description copied from interface: BooleanList

Specified by:

sort in interface BooleanList

Specified by:

sort in interface List<Boolean>

unstableSort

@Deprecated
public void unstableSort(Comparator<? super Boolean> comparator)

Deprecated.

Description copied from interface: BooleanList

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

Specified by:

unstableSort in interface BooleanList

listIterator

public BooleanListIterator listIterator()

Description copied from interface: BooleanList

Returns a type-specific list iterator on the list.

Specified by:

listIterator in interface BooleanList

Specified by:

listIterator in interface List<Boolean>

See Also:

• List.listIterator()

iterator

public BooleanListIterator iterator()

Description copied from interface: BooleanCollection

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

Specified by:

iterator in interface BooleanCollection

Specified by:

iterator in interface BooleanIterable

Specified by:

iterator in interface BooleanList

Specified by:

iterator in interface Collection<Boolean>

Specified by:

iterator in interface Iterable<Boolean>

Specified by:

iterator in interface List<Boolean>

Overrides:

iterator in class BooleanCollections.EmptyCollection

Returns:

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

See Also:

• Iterable.iterator()

listIterator

public BooleanListIterator listIterator(int i)

Description copied from interface: BooleanList

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

Specified by:

listIterator in interface BooleanList

Specified by:

listIterator in interface List<Boolean>

See Also:

• List.listIterator(int)

subList

public BooleanList subList(int from,
 int to)

Description copied from interface: BooleanList

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 BooleanList

Specified by:

subList in interface List<Boolean>

See Also:

• List.subList(int,int)

getElements

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

Description copied from interface: BooleanList

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

Specified by:

getElements in interface BooleanList

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: BooleanList

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

Specified by:

removeElements in interface BooleanList

Parameters:

from - the start index (inclusive).

to - the end index (exclusive).

addElements

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

Description copied from interface: BooleanList

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

Specified by:

addElements in interface BooleanList

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,
 boolean[] a)

Description copied from interface: BooleanList

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

Specified by:

addElements in interface BooleanList

Parameters:

index - the index at which to add elements.

a - the array containing the elements.

setElements

public void setElements(boolean[] a)

Description copied from interface: BooleanList

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

Specified by:

setElements in interface BooleanList

Parameters:

a - the array containing the elements.

setElements

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

Description copied from interface: BooleanList

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

Specified by:

setElements in interface BooleanList

Parameters:

index - the index at which to start setting elements.

a - the array containing the elements.

setElements

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

Description copied from interface: BooleanList

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 BooleanList

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: BooleanList

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 BooleanList

Parameters:

s - the new size.

compareTo

public int compareTo(List<? extends Boolean> o)

Specified by:

compareTo in interface Comparable<List<? extends Boolean>>

clone

public Object clone()

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<Boolean>

Specified by:

hashCode in interface List<Boolean>

Overrides:

hashCode in class BooleanCollections.EmptyCollection

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<Boolean>

Specified by:

equals in interface List<Boolean>

Overrides:

equals in class BooleanCollections.EmptyCollection

toString

public String toString()

Overrides:

toString in class AbstractBooleanCollection