org.fjank.jcache.collection
Class SetProxy

java.lang.Object
  org.fjank.jcache.collection.SetProxy

All Implemented Interfaces:

Iterable, Collection, Set

public class SetProxy
extends Object
implements Set

A proxy for a key set returned from the Map implementation.

Author:

Frank Karlstrøm

Constructor Summary

SetProxy(Set set, CacheGroup group)
Creates a new keySetProxy.

Method Summary

boolean	add(Object o) the implementation of this operation will always throw UnsupportedOperatioinException
boolean	addAll(Collection c) the implementation of this operation will always throw UnsupportedOperationException
void	clear() Clears this set, which will clear the cache of all objects.
boolean	contains(Object o) Returns a boolean indicating wether the object exists in the cache or not.
boolean	containsAll(Collection c)
boolean	isEmpty()
Iterator	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection c)
boolean	retainAll(Collection c)
int	size()
Object[]	toArray()
Object[]	toArray(Object[] a)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

equals, hashCode

Constructor Detail

SetProxy

public SetProxy(Set set,
                CacheGroup group)

Creates a new keySetProxy.

Parameters:

set - the set to be a proxy for.

group -

Method Detail

add

public boolean add(Object o)

the implementation of this operation will always throw UnsupportedOperatioinException

Specified by:

add in interface Collection

Specified by:

add in interface Set

Parameters:

o - the object to add.

Returns:

a boolean indicating wether the operation failed or not.

addAll

public boolean addAll(Collection c)

the implementation of this operation will always throw UnsupportedOperationException

Specified by:

addAll in interface Collection

Specified by:

addAll in interface Set

Parameters:

c - the collection to add objects from.

Returns:

a boolean indicating wether the operation failed or not.

clear

public void clear()

Clears this set, which will clear the cache of all objects. This method behaves the same as invalidate on CacheAccess.

Specified by:

clear in interface Collection

Specified by:

clear in interface Set

See Also:

javax.util.jcache.CacheAccess#invalidate()

contains

public boolean contains(Object o)

Returns a boolean indicating wether the object exists in the cache or not.

Specified by:

contains in interface Collection

Specified by:

contains in interface Set

Parameters:

o - the object to check the existence for.

Returns:

true if the object is present in the cache, false otherwise.

containsAll

public boolean containsAll(Collection c)

Specified by:

containsAll in interface Collection

Specified by:

containsAll in interface Set

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection

Specified by:

isEmpty in interface Set

iterator

public Iterator iterator()

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in interface Set

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection

Specified by:

remove in interface Set

removeAll

public boolean removeAll(Collection c)

Specified by:

removeAll in interface Collection

Specified by:

removeAll in interface Set

retainAll

public boolean retainAll(Collection c)

Specified by:

retainAll in interface Collection

Specified by:

retainAll in interface Set

Parameters:

c -

Returns:

size

public int size()

Specified by:

size in interface Collection

Specified by:

size in interface Set

Returns:

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection

Specified by:

toArray in interface Set

Returns:

toArray

public Object[] toArray(Object[] a)

Specified by:

toArray in interface Collection

Specified by:

toArray in interface Set

Parameters:

a -

Returns:

toString

public String toString()

Overrides:

toString in class Object