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

java.lang.Object
  extended by java.util.AbstractCollection<K>
      extended by it.unimi.dsi.fastutil.objects.AbstractObjectCollection<K>
          extended by it.unimi.dsi.fastutil.objects.ObjectCollections.EmptyCollection<K>
              extended by 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
static long serialVersionUID
           
 
Constructor Summary
protected ObjectSets.EmptySet()
           
 
Method Summary
 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


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