it.unimi.dsi.fastutil.chars
Class CharSets.Singleton

java.lang.Object
  extended by java.util.AbstractCollection<java.lang.Character>
      extended by it.unimi.dsi.fastutil.chars.AbstractCharCollection
          extended by it.unimi.dsi.fastutil.chars.AbstractCharSet
              extended by it.unimi.dsi.fastutil.chars.CharSets.Singleton
All Implemented Interfaces:
CharCollection, CharIterable, CharSet, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<java.lang.Character>, java.util.Collection<java.lang.Character>, java.util.Set<java.lang.Character>
Direct Known Subclasses:
CharSortedSets.Singleton
Enclosing class:
CharSets

public static class CharSets.Singleton
extends AbstractCharSet
implements java.io.Serializable, java.lang.Cloneable

An immutable class representing a type-specific singleton set.

This class may be useful to implement your own in case you subclass a type-specific set.

See Also:
Serialized Form

Method Summary
 boolean add(char k)
           
 boolean addAll(CharCollection c)
          Adds all elements of the given type-specific collection to this collection.
 boolean addAll(java.util.Collection<? extends java.lang.Character> c)
          Adds all elements of the given collection to this collection.
 java.lang.Object clone()
           
 boolean contains(char k)
           
 CharListIterator iterator()
          Returns a type-specific iterator on the elements of this collection.
 boolean removeAll(CharCollection c)
          Remove from this collection all elements in the given type-specific collection.
 boolean removeAll(java.util.Collection<?> c)
          Remove from this collection all elements in the given collection.
 boolean retainAll(CharCollection c)
          Retains in this collection only elements from the given type-specific collection.
 boolean retainAll(java.util.Collection<?> c)
          Retains in this collection only elements from the given collection.
 int size()
           
 char[] toCharArray()
          Returns a primitive type array containing the items of this collection.
 
Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharSet
equals, hashCode, rem, remove, remove
 
Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharCollection
add, charIterator, contains, containsAll, containsAll, isEmpty, rem, toArray, toArray, toArray, toCharArray, toString
 
Methods inherited from class java.util.AbstractCollection
clear
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface it.unimi.dsi.fastutil.chars.CharCollection
charIterator, containsAll, toArray, toArray, toCharArray
 
Methods inherited from interface java.util.Set
add, clear, contains, containsAll, isEmpty, toArray, toArray
 

Method Detail

add

public boolean add(char k)
Specified by:
add in interface CharCollection
Overrides:
add in class AbstractCharCollection
See Also:
Collection.add(Object)

contains

public boolean contains(char k)
Specified by:
contains in interface CharCollection
Overrides:
contains in class AbstractCharCollection
See Also:
Collection.contains(Object)

addAll

public boolean addAll(java.util.Collection<? extends java.lang.Character> c)
Description copied from class: AbstractCharCollection
Adds all elements of the given collection to this collection.

Specified by:
addAll in interface java.util.Collection<java.lang.Character>
Specified by:
addAll in interface java.util.Set<java.lang.Character>
Overrides:
addAll in class AbstractCharCollection
Parameters:
c - a collection.
Returns:
true if this collection changed as a result of the call.

removeAll

public boolean removeAll(java.util.Collection<?> c)
Description copied from class: AbstractCharCollection
Remove from this collection all elements in the given collection. If the collection is an instance of this class, it uses faster iterators.

Specified by:
removeAll in interface java.util.Collection<java.lang.Character>
Specified by:
removeAll in interface java.util.Set<java.lang.Character>
Overrides:
removeAll in class AbstractCharCollection
Parameters:
c - a collection.
Returns:
true if this collection changed as a result of the call.

retainAll

public boolean retainAll(java.util.Collection<?> c)
Description copied from class: AbstractCharCollection
Retains in this collection only elements from the given collection.

Specified by:
retainAll in interface java.util.Collection<java.lang.Character>
Specified by:
retainAll in interface java.util.Set<java.lang.Character>
Overrides:
retainAll in class AbstractCharCollection
Parameters:
c - a collection.
Returns:
true if this collection changed as a result of the call.

toCharArray

public char[] toCharArray()
Description copied from interface: CharCollection
Returns a primitive type array containing the items of this collection.

Specified by:
toCharArray in interface CharCollection
Overrides:
toCharArray in class AbstractCharCollection
Returns:
a primitive type array containing the items of this collection.
See Also:
Collection.toArray()

addAll

public boolean addAll(CharCollection c)
Description copied from class: AbstractCharCollection
Adds all elements of the given type-specific collection to this collection.

Specified by:
addAll in interface CharCollection
Overrides:
addAll in class AbstractCharCollection
Parameters:
c - a type-specific collection.
Returns:
true if this collection changed as a result of the call.
See Also:
Collection.addAll(Collection)

removeAll

public boolean removeAll(CharCollection c)
Description copied from class: AbstractCharCollection
Remove from this collection all elements in the given type-specific collection.

Specified by:
removeAll in interface CharCollection
Overrides:
removeAll in class AbstractCharCollection
Parameters:
c - a type-specific collection.
Returns:
true if this collection changed as a result of the call.
See Also:
Collection.removeAll(Collection)

retainAll

public boolean retainAll(CharCollection c)
Description copied from class: AbstractCharCollection
Retains in this collection only elements from the given type-specific collection.

Specified by:
retainAll in interface CharCollection
Overrides:
retainAll in class AbstractCharCollection
Parameters:
c - a type-specific collection.
Returns:
true if this collection changed as a result of the call.
See Also:
Collection.retainAll(Collection)

iterator

public CharListIterator iterator()
Description copied from interface: CharCollection
Returns a type-specific iterator on the elements of this collection.

Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.

Specified by:
iterator in interface CharCollection
Specified by:
iterator in interface CharIterable
Specified by:
iterator in interface CharSet
Specified by:
iterator in interface java.lang.Iterable<java.lang.Character>
Specified by:
iterator in interface java.util.Collection<java.lang.Character>
Specified by:
iterator in interface java.util.Set<java.lang.Character>
Specified by:
iterator in class AbstractCharSet
Returns:
a type-specific iterator on the elements of this collection.

size

public int size()
Specified by:
size in interface java.util.Collection<java.lang.Character>
Specified by:
size in interface java.util.Set<java.lang.Character>
Specified by:
size in class java.util.AbstractCollection<java.lang.Character>

clone

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