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 and Description
boolean	add(K k)
boolean	addAll(Collection<? extends K> c) Adds all elements of the given collection to this collection.
Object	clone()
boolean	contains(Object k)
ObjectListIterator<K>	iterator() Returns a type-specific iterator on the elements of this collection.
boolean	removeAll(Collection<?> c) Remove from this collection all elements in the given collection.
boolean	retainAll(Collection<?> c) Retains in this collection only elements from the given collection.
int	size()

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

equals, hashCode, remove

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

containsAll, isEmpty, objectIterator, toArray, toArray, toString

Methods inherited from class java.util.AbstractCollection

clear

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

objectIterator, toArray

Methods inherited from interface java.util.Set

clear, containsAll, isEmpty, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

add

public boolean add(K k)

Specified by:

add in interface Collection<K>

Specified by:

add in interface Set<K>

Overrides:

add in class AbstractReferenceCollection<K>

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>

addAll

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

Description copied from class: AbstractReferenceCollection

Adds all elements of the given collection to this collection.

Specified by:

addAll in interface Collection<K>

Specified by:

addAll in interface Set<K>

Overrides:

addAll in class AbstractReferenceCollection<K>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: AbstractReferenceCollection

Remove from this collection all elements in the given collection. If the collection is an instance of this class, it uses faster iterators.

Specified by:

removeAll in interface Collection<K>

Specified by:

removeAll in interface Set<K>

Overrides:

removeAll in class AbstractReferenceCollection<K>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: AbstractReferenceCollection

Retains in this collection only elements from the given collection.

Specified by:

retainAll in interface Collection<K>

Specified by:

retainAll in interface Set<K>

Overrides:

retainAll in class AbstractReferenceCollection<K>

Parameters:

c - a collection.

Returns:

true if this collection changed as a result of the call.

iterator

public ObjectListIterator<K> iterator()

Description copied from interface: ReferenceCollection

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

Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.

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 Iterable<K>

Specified by:

iterator in interface Collection<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.

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>

clone

public Object clone()

Overrides:

clone in class Object