Package it.unimi.dsi.fastutil.objects

Class ReferenceSets.Singleton<K>

java.lang.Object

java.util.AbstractCollection<K>

it.unimi.dsi.fastutil.objects.AbstractReferenceCollection<K>

it.unimi.dsi.fastutil.objects.AbstractReferenceSet<K>

it.unimi.dsi.fastutil.objects.ReferenceSets.Singleton<K>

All Implemented Interfaces:

ObjectIterable<K>, ReferenceCollection<K>, ReferenceSet<K>, Serializable, Cloneable, Iterable<K>, Collection<K>, Set<K>

Direct Known Subclasses:

ReferenceSortedSets.Singleton

Enclosing class:

ReferenceSets

public static class ReferenceSets.Singleton<K>
extends AbstractReferenceSet<K>
implements Serializable, Cloneable

An immutable class representing a type-specific singleton set.

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

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
boolean	addAll(Collection<? extends K> c)
Object	clone()
boolean	contains(Object k)
void	forEach(Consumer<? super K> action)
ObjectListIterator<K>	iterator()	Returns a type-specific iterator on the elements of this collection.
boolean	remove(Object k)
boolean	removeAll(Collection<?> c)
boolean	removeIf(Predicate<? super K> filter)
boolean	retainAll(Collection<?> c)
int	size()
ObjectSpliterator<K>	spliterator()	Returns a type-specific spliterator on the elements of this set.
Object[]	toArray()

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

equals, hashCode

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

toString

Methods inherited from class java.util.AbstractCollection

add, clear, containsAll, isEmpty, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, stream, toArray

Methods inherited from interface java.util.Set

add, clear, containsAll, isEmpty, toArray

Method Details

contains

public boolean contains(Object k)

Specified by:

contains in interface Collection<K>

Specified by:

contains in interface Set<K>

Overrides:

contains in class AbstractCollection<K>

remove

public boolean remove(Object k)

Specified by:

remove in interface Collection<K>

Specified by:

remove in interface Set<K>

Overrides:

remove in class AbstractCollection<K>

iterator

public ObjectListIterator<K> iterator()

Description copied from interface: ReferenceCollection

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

Specified by:

iterator in interface Collection<K>

Specified by:

iterator in interface Iterable<K>

Specified by:

iterator in interface ObjectIterable<K>

Specified by:

iterator in interface ReferenceCollection<K>

Specified by:

iterator in interface ReferenceSet<K>

Specified by:

iterator in interface Set<K>

Specified by:

iterator in class AbstractReferenceSet<K>

Returns:

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

See Also:

• Iterable.iterator()

spliterator

public ObjectSpliterator<K> spliterator()

Description copied from interface: ReferenceSet

Returns a type-specific spliterator on the elements of this set.

Set spliterators must report at least Spliterator.DISTINCT.

See Set.spliterator() for more documentation on the requirements of the returned spliterator.

Specified by:

spliterator in interface Collection<K>

Specified by:

spliterator in interface Iterable<K>

Specified by:

spliterator in interface ObjectIterable<K>

Specified by:

spliterator in interface ReferenceCollection<K>

Specified by:

spliterator in interface ReferenceSet<K>

Specified by:

spliterator in interface Set<K>

Returns:

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

size

public int size()

Specified by:

size in interface Collection<K>

Specified by:

size in interface Set<K>

Specified by:

size in class AbstractCollection<K>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<K>

Specified by:

toArray in interface Set<K>

Overrides:

toArray in class AbstractCollection<K>

forEach

public void forEach(Consumer<? super K> action)

Specified by:

forEach in interface Iterable<K>

addAll

public boolean addAll(Collection<? extends K> c)

Specified by:

addAll in interface Collection<K>

Specified by:

addAll in interface Set<K>

Overrides:

addAll in class AbstractCollection<K>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<K>

Specified by:

removeAll in interface Set<K>

Overrides:

removeAll in class AbstractCollection<K>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<K>

Specified by:

retainAll in interface Set<K>

Overrides:

retainAll in class AbstractCollection<K>

removeIf

public boolean removeIf(Predicate<? super K> filter)

Specified by:

removeIf in interface Collection<K>

clone

public Object clone()