Class ReferenceSets.EmptySet<K>

java.lang.Object

java.util.AbstractCollection<K>

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

it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection<K>

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

All Implemented Interfaces:

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

Direct Known Subclasses:

ReferenceSortedSets.EmptySet

Enclosing class:

ReferenceSets

public static class ReferenceSets.EmptySet<K>
extends ReferenceCollections.EmptyCollection<K>
implements ReferenceSet<K>, Serializable, Cloneable

An immutable class representing the empty set and implementing a type-specific set interface.

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
Object	clone()
boolean	equals(Object o)
boolean	remove(Object ok)

Methods inherited from class ReferenceCollections.EmptyCollection

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

Methods inherited from class AbstractReferenceCollection

toString

Methods inherited from class AbstractCollection

add, isEmpty

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface Iterable

forEach

Methods inherited from interface ReferenceSet

iterator, spliterator

Methods inherited from interface Set

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

Method Details

remove

public boolean remove(Object ok)

Specified by:

remove in interface Collection<K>

Specified by:

remove in interface Set<K>

Overrides:

remove in class AbstractCollection<K>

clone

public Object clone()

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<K>

Specified by:

equals in interface Set<K>

Overrides:

equals in class ReferenceCollections.EmptyCollection<K>