it.unimi.dsi.fastutil.objects
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>, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>

Direct Known Subclasses:

ReferenceSortedSets.EmptySet

Enclosing class:

ReferenceSets

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

java.lang.Object	clone()
boolean	remove(java.lang.Object ok) Removes an element from this set.

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

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

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

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

iterator

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

objectIterator, toArray

Methods inherited from interface java.util.Set

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

Method Detail

remove

public boolean remove(java.lang.Object ok)

Description copied from interface: ReferenceSet

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 ReferenceSet<K>

Specified by:

remove in interface java.util.Collection<K>

Specified by:

remove in interface java.util.Set<K>

Overrides:

remove in class ReferenceCollections.EmptyCollection<K>

See Also:

Collection.remove(Object)

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object