Class Overview
Decorates a Map
to obtain Set
behaviour.
This class is used to create a Set
with the same properties as
the key set of any map. Thus, a ReferenceSet can be created by wrapping a
ReferenceMap
in an instance of this class.
Most map implementation can be used to create a set by passing in dummy values.
Exceptions include BidiMap
implementations, as they require unique values.
Summary
Fields |
protected
final
Object |
dummyValue |
The dummyValue to use |
protected
final
Map |
map |
The map being used as the backing store |
[Expand]
Inherited Methods |
From class
java.lang.Object
Object
|
clone()
|
boolean
|
equals(Object arg0)
|
void
|
finalize()
|
final
Class<?>
|
getClass()
|
int
|
hashCode()
|
final
void
|
notify()
|
final
void
|
notifyAll()
|
String
|
toString()
|
final
void
|
wait()
|
final
void
|
wait(long arg0, int arg1)
|
final
void
|
wait(long arg0)
|
|
From interface
java.lang.Iterable
|
From interface
java.util.Collection
abstract
boolean
|
add(E arg0)
|
abstract
boolean
|
addAll(Collection<? extends E> arg0)
|
abstract
void
|
clear()
|
abstract
boolean
|
contains(Object arg0)
|
abstract
boolean
|
containsAll(Collection<?> arg0)
|
abstract
boolean
|
equals(Object arg0)
|
abstract
int
|
hashCode()
|
abstract
boolean
|
isEmpty()
|
abstract
Iterator<E>
|
iterator()
|
abstract
boolean
|
remove(Object arg0)
|
abstract
boolean
|
removeAll(Collection<?> arg0)
|
abstract
boolean
|
retainAll(Collection<?> arg0)
|
abstract
int
|
size()
|
abstract
<T>
T[]
|
toArray(T[] arg0)
|
abstract
Object[]
|
toArray()
|
|
From interface
java.util.Set
abstract
boolean
|
add(E arg0)
|
abstract
boolean
|
addAll(Collection<? extends E> arg0)
|
abstract
void
|
clear()
|
abstract
boolean
|
contains(Object arg0)
|
abstract
boolean
|
containsAll(Collection<?> arg0)
|
abstract
boolean
|
equals(Object arg0)
|
abstract
int
|
hashCode()
|
abstract
boolean
|
isEmpty()
|
abstract
Iterator<E>
|
iterator()
|
abstract
boolean
|
remove(Object arg0)
|
abstract
boolean
|
removeAll(Collection<?> arg0)
|
abstract
boolean
|
retainAll(Collection<?> arg0)
|
abstract
int
|
size()
|
abstract
<T>
T[]
|
toArray(T[] arg0)
|
abstract
Object[]
|
toArray()
|
|
Fields
protected
final
Object
dummyValue
protected
final
Map
map
The map being used as the backing store
Public Methods
public
boolean
add
(Object obj)
public
boolean
contains
(Object obj)
public
static
Set
decorate
(Map map, Object dummyValue)
Factory method to create a set from a map.
Parameters
map
| the map to decorate, must not be null |
dummyValue
| the dummy value to use |
public
static
Set
decorate
(Map map)
Factory method to create a set from a map.
Parameters
map
| the map to decorate, must not be null |
public
boolean
equals
(Object obj)
public
boolean
isEmpty
()
public
boolean
remove
(Object obj)