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

java.lang.Object
  extended by it.unimi.dsi.fastutil.objects.AbstractReferenceCollection<K>
      extended by it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection<K>
          extended by 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

Field Summary
static long serialVersionUID
           
 
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
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values
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 AbstractReferenceCollection<K>
See Also:
Collection.remove(Object)

clone

public java.lang.Object clone()
Overrides:
clone in class java.lang.Object