it.unimi.dsi.fastutil.objects

Class ObjectSets.EmptySet<K>

java.lang.Object

java.util.AbstractCollection<K>

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

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

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

All Implemented Interfaces:

ObjectCollection<K>, ObjectIterable<K>, ObjectSet<K>, Serializable, Cloneable, Iterable<K>, Collection<K>, Set<K>

Direct Known Subclasses:

ObjectSortedSets.EmptySet

Enclosing class:

ObjectSets

public static class ObjectSets.EmptySet<K>
extends ObjectCollections.EmptyCollection<K>
implements ObjectSet<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

Field Summary

Fields

Modifier and Type	Field and Description
static long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ObjectSets.EmptySet()

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone()
boolean	remove(Object ok) Removes an element from this set.

Methods inherited from class it.unimi.dsi.fastutil.objects.ObjectCollections.EmptyCollection

add, clear, contains, equals, hashCode, iterator, size, toArray, toArray

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

addAll, containsAll, isEmpty, objectIterator, removeAll, retainAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

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

iterator

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

objectIterator, toArray

Methods inherited from interface java.util.Set

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

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

ObjectSets.EmptySet

protected ObjectSets.EmptySet()

Method Detail

remove

public boolean remove(Object ok)

Description copied from interface: ObjectSet

Removes an element from this set.

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 ObjectSet<K>

Specified by:

remove in interface Collection<K>

Specified by:

remove in interface Set<K>

Overrides:

remove in class ObjectCollections.EmptyCollection<K>

See Also:

Collection.remove(Object)

clone

public Object clone()

Overrides:

clone in class Object