it.unimi.dsi.fastutil
Class Sets.EmptySet

java.lang.Object
  it.unimi.dsi.fastutil.objects.AbstractObjectCollection
      it.unimi.dsi.fastutil.Collections.EmptyCollection
          it.unimi.dsi.fastutil.Sets.EmptySet

All Implemented Interfaces:

BooleanCollection, BooleanSet, ByteCollection, ByteSet, ByteSortedSet, CharCollection, CharSet, CharSortedSet, Cloneable, Collection, DoubleCollection, DoubleSet, DoubleSortedSet, FloatCollection, FloatSet, FloatSortedSet, IntCollection, IntSet, IntSortedSet, LongCollection, LongSet, LongSortedSet, ObjectCollection, ObjectSet, ObjectSortedSet, ReferenceCollection, ReferenceSet, ReferenceSortedSet, Serializable, Set, ShortCollection, ShortSet, ShortSortedSet, SortedSet

Enclosing class:

Sets

public static class Sets.EmptySet

extends Collections.EmptyCollection

implements BooleanSet, ByteSortedSet, ShortSortedSet, IntSortedSet, LongSortedSet, CharSortedSet, FloatSortedSet, DoubleSortedSet, ObjectSortedSet, ReferenceSortedSet, Serializable, Cloneable

An immutable class representing the empty (sorted) set and implementing all type-specific set interfaces.

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

See Also:

Serialized Form

Field Summary

static long

serialVersionUID

Method Summary

ByteComparator	byteComparator()
CharComparator	charComparator()
Object	clone()
Comparator	comparator()
DoubleComparator	doubleComparator()
Object	first()
boolean	firstBoolean()
byte	firstByte()
char	firstChar()
double	firstDouble()
float	firstFloat()
int	firstInt()
long	firstLong()
short	firstShort()
FloatComparator	floatComparator()
ByteSortedSet	headSet(byte from)
CharSortedSet	headSet(char from)
DoubleSortedSet	headSet(double from)
FloatSortedSet	headSet(float from)
IntSortedSet	headSet(int from)
LongSortedSet	headSet(long from)
SortedSet	headSet(Object from)
ShortSortedSet	headSet(short from)
IntComparator	intComparator()
ByteBidirectionalIterator	iterator(byte from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
CharBidirectionalIterator	iterator(char from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
DoubleBidirectionalIterator	iterator(double from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
FloatBidirectionalIterator	iterator(float from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
IntBidirectionalIterator	iterator(int from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
LongBidirectionalIterator	iterator(long from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
ObjectBidirectionalIterator	iterator(Object from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
ShortBidirectionalIterator	iterator(short from) Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).
Object	last()
boolean	lastBoolean()
byte	lastByte()
char	lastChar()
double	lastDouble()
float	lastFloat()
int	lastInt()
long	lastLong()
short	lastShort()
LongComparator	longComparator()
boolean	remove(boolean k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(byte k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(char k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(double k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(float k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(int k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(long k) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(Object ok) Note that the corresponding method of the type-specific collection is rem().
boolean	remove(short k) Note that the corresponding method of the type-specific collection is rem().
ShortComparator	shortComparator()
ByteSortedSet	subSet(byte from, byte to)
CharSortedSet	subSet(char from, char to)
DoubleSortedSet	subSet(double from, double to)
FloatSortedSet	subSet(float from, float to)
IntSortedSet	subSet(int from, int to)
LongSortedSet	subSet(long from, long to)
SortedSet	subSet(Object from, Object to)
ShortSortedSet	subSet(short from, short to)
ByteSortedSet	tailSet(byte to)
CharSortedSet	tailSet(char to)
DoubleSortedSet	tailSet(double to)
FloatSortedSet	tailSet(float to)
IntSortedSet	tailSet(int to)
LongSortedSet	tailSet(long to)
SortedSet	tailSet(Object to)
ShortSortedSet	tailSet(short to)

Methods inherited from class it.unimi.dsi.fastutil.Collections.EmptyCollection

add, add, add, add, add, add, add, add, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, booleanIterator, byteIterator, charIterator, clear, contains, contains, contains, contains, contains, contains, contains, contains, contains, containsAll, containsAll, containsAll, containsAll, containsAll, containsAll, containsAll, containsAll, doubleIterator, equals, floatIterator, hashCode, intIterator, iterator, longIterator, objectIterator, referenceIterator, rem, rem, rem, rem, rem, rem, rem, rem, removeAll, removeAll, removeAll, removeAll, removeAll, removeAll, removeAll, removeAll, retainAll, retainAll, retainAll, retainAll, retainAll, retainAll, retainAll, retainAll, shortIterator, size, toArray, toArray, toArray, toArray, toArray, toArray, toArray, toArray, toArray, toBooleanArray, toBooleanArray, toByteArray, toByteArray, toCharArray, toCharArray, toDoubleArray, toDoubleArray, toFloatArray, toFloatArray, toIntArray, toIntArray, toLongArray, toLongArray, toShortArray, toShortArray

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObjectCollection

add, addAll, containsAll, isEmpty, rem, removeAll, retainAll, toArray, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, removeAll, retainAll, size, toArray, toArray

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

add, addAll, booleanIterator, contains, containsAll, rem, removeAll, retainAll, toArray, toBooleanArray, toBooleanArray

Methods inherited from interface it.unimi.dsi.fastutil.bytes.ByteCollection

add, addAll, byteIterator, contains, containsAll, rem, removeAll, retainAll, toArray, toByteArray, toByteArray

Methods inherited from interface it.unimi.dsi.fastutil.shorts.ShortCollection

add, addAll, contains, containsAll, rem, removeAll, retainAll, shortIterator, toArray, toShortArray, toShortArray

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

add, addAll, contains, containsAll, intIterator, rem, removeAll, retainAll, toArray, toIntArray, toIntArray

Methods inherited from interface it.unimi.dsi.fastutil.longs.LongCollection

add, addAll, contains, containsAll, longIterator, rem, removeAll, retainAll, toArray, toLongArray, toLongArray

Methods inherited from interface it.unimi.dsi.fastutil.chars.CharCollection

add, addAll, charIterator, contains, containsAll, rem, removeAll, retainAll, toArray, toCharArray, toCharArray

Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatCollection

add, addAll, contains, containsAll, floatIterator, rem, removeAll, retainAll, toArray, toFloatArray, toFloatArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection

add, addAll, contains, containsAll, doubleIterator, rem, removeAll, retainAll, toArray, toDoubleArray, toDoubleArray

Methods inherited from interface it.unimi.dsi.fastutil.objects.ObjectCollection

objectIterator

Methods inherited from interface it.unimi.dsi.fastutil.objects.ReferenceCollection

objectIterator

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

Method Detail

remove

public boolean remove(Object ok)

Description copied from interface: ObjectSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface Set

Overrides:

remove in class AbstractObjectCollection

remove

public boolean remove(boolean k)

Description copied from interface: BooleanSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface BooleanSet

See Also:

Collection.remove(Object)

remove

public boolean remove(byte k)

Description copied from interface: ByteSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface ByteSet

See Also:

Collection.remove(Object)

remove

public boolean remove(char k)

Description copied from interface: CharSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface CharSet

See Also:

Collection.remove(Object)

remove

public boolean remove(short k)

Description copied from interface: ShortSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface ShortSet

See Also:

Collection.remove(Object)

remove

public boolean remove(int k)

Description copied from interface: IntSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface IntSet

See Also:

Collection.remove(Object)

remove

public boolean remove(long k)

Description copied from interface: LongSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface LongSet

See Also:

Collection.remove(Object)

remove

public boolean remove(float k)

Description copied from interface: FloatSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface FloatSet

See Also:

Collection.remove(Object)

remove

public boolean remove(double k)

Description copied from interface: DoubleSet

Note that the corresponding method of the type-specific collection is rem(). This unfortunate situation is caused by the clash with the similarly named index-based method in the List interface.

Specified by:

remove in interface DoubleSet

See Also:

Collection.remove(Object)

iterator

public ByteBidirectionalIterator iterator(byte from)

Description copied from interface: ByteSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface ByteSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public CharBidirectionalIterator iterator(char from)

Description copied from interface: CharSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface CharSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public ShortBidirectionalIterator iterator(short from)

Description copied from interface: ShortSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface ShortSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public IntBidirectionalIterator iterator(int from)

Description copied from interface: IntSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface IntSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public LongBidirectionalIterator iterator(long from)

Description copied from interface: LongSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface LongSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public FloatBidirectionalIterator iterator(float from)

Description copied from interface: FloatSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface FloatSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public DoubleBidirectionalIterator iterator(double from)

Description copied from interface: DoubleSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface DoubleSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

iterator

public ObjectBidirectionalIterator iterator(Object from)

Description copied from interface: ObjectSortedSet

Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

Specified by:

iterator in interface ObjectSortedSet

Parameters:

from - an element to start from.

Returns:

a bidirectional iterator iterator starting at the given element.

subSet

public ByteSortedSet subSet(byte from,
                            byte to)

Specified by:

subSet in interface ByteSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public CharSortedSet subSet(char from,
                            char to)

Specified by:

subSet in interface CharSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public ShortSortedSet subSet(short from,
                             short to)

Specified by:

subSet in interface ShortSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public IntSortedSet subSet(int from,
                           int to)

Specified by:

subSet in interface IntSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public LongSortedSet subSet(long from,
                            long to)

Specified by:

subSet in interface LongSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public FloatSortedSet subSet(float from,
                             float to)

Specified by:

subSet in interface FloatSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public DoubleSortedSet subSet(double from,
                              double to)

Specified by:

subSet in interface DoubleSortedSet

See Also:

SortedSet.subSet(Object,Object)

subSet

public SortedSet subSet(Object from,
                        Object to)

Specified by:

subSet in interface SortedSet

headSet

public ByteSortedSet headSet(byte from)

Specified by:

headSet in interface ByteSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public CharSortedSet headSet(char from)

Specified by:

headSet in interface CharSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public ShortSortedSet headSet(short from)

Specified by:

headSet in interface ShortSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public IntSortedSet headSet(int from)

Specified by:

headSet in interface IntSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public LongSortedSet headSet(long from)

Specified by:

headSet in interface LongSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public FloatSortedSet headSet(float from)

Specified by:

headSet in interface FloatSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public DoubleSortedSet headSet(double from)

Specified by:

headSet in interface DoubleSortedSet

See Also:

SortedSet.headSet(Object)

headSet

public SortedSet headSet(Object from)

Specified by:

headSet in interface SortedSet

tailSet

public ByteSortedSet tailSet(byte to)

Specified by:

tailSet in interface ByteSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public CharSortedSet tailSet(char to)

Specified by:

tailSet in interface CharSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public ShortSortedSet tailSet(short to)

Specified by:

tailSet in interface ShortSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public IntSortedSet tailSet(int to)

Specified by:

tailSet in interface IntSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public LongSortedSet tailSet(long to)

Specified by:

tailSet in interface LongSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public FloatSortedSet tailSet(float to)

Specified by:

tailSet in interface FloatSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public DoubleSortedSet tailSet(double to)

Specified by:

tailSet in interface DoubleSortedSet

See Also:

SortedSet.tailSet(Object)

tailSet

public SortedSet tailSet(Object to)

Specified by:

tailSet in interface SortedSet

first

public Object first()

Specified by:

first in interface SortedSet

firstBoolean

public boolean firstBoolean()

firstByte

public byte firstByte()

Specified by:

firstByte in interface ByteSortedSet

See Also:

SortedSet.first()

firstChar

public char firstChar()

Specified by:

firstChar in interface CharSortedSet

See Also:

SortedSet.first()

firstShort

public short firstShort()

Specified by:

firstShort in interface ShortSortedSet

See Also:

SortedSet.first()

firstInt

public int firstInt()

Specified by:

firstInt in interface IntSortedSet

See Also:

SortedSet.first()

firstLong

public long firstLong()

Specified by:

firstLong in interface LongSortedSet

See Also:

SortedSet.first()

firstFloat

public float firstFloat()

Specified by:

firstFloat in interface FloatSortedSet

See Also:

SortedSet.first()

firstDouble

public double firstDouble()

Specified by:

firstDouble in interface DoubleSortedSet

See Also:

SortedSet.first()

last

public Object last()

Specified by:

last in interface SortedSet

lastBoolean

public boolean lastBoolean()

lastByte

public byte lastByte()

Specified by:

lastByte in interface ByteSortedSet

See Also:

SortedSet.last()

lastChar

public char lastChar()

Specified by:

lastChar in interface CharSortedSet

See Also:

SortedSet.last()

lastShort

public short lastShort()

Specified by:

lastShort in interface ShortSortedSet

See Also:

SortedSet.last()

lastInt

public int lastInt()

Specified by:

lastInt in interface IntSortedSet

See Also:

SortedSet.last()

lastLong

public long lastLong()

Specified by:

lastLong in interface LongSortedSet

See Also:

SortedSet.last()

lastFloat

public float lastFloat()

Specified by:

lastFloat in interface FloatSortedSet

See Also:

SortedSet.last()

lastDouble

public double lastDouble()

Specified by:

lastDouble in interface DoubleSortedSet

See Also:

SortedSet.last()

comparator

public Comparator comparator()

Specified by:

comparator in interface SortedSet

byteComparator

public ByteComparator byteComparator()

charComparator

public CharComparator charComparator()

shortComparator

public ShortComparator shortComparator()

intComparator

public IntComparator intComparator()

longComparator

public LongComparator longComparator()

floatComparator

public FloatComparator floatComparator()

doubleComparator

public DoubleComparator doubleComparator()

clone

public Object clone()