org.castor.util

Class IdentityMap

public final class IdentityMap extends Object implements Map

An IdentityMap that uses reference-equality instead of object-equality. According to its special function it violates some design contracts of the Map interface.

Since: 0.9.9

Version: $Revision: 6230 $ $Date: 2006-04-13 10:49:49 -0600 (Thu, 13 Apr 2006) $

Author: Ralf Joachim

Nested Class Summary
class	IdentityMap.Entry An entry of the `IdentityMap`.

Method Summary
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value) In contrast with the design contract of the `Map` interface this method has not been implemented and throws a `UnsupportedOperationException`.
Set	entrySet() In contrast with the design contract of the `Map` interface this method has not been implemented and throws a `UnsupportedOperationException`.
Object	get(Object key)
boolean	isEmpty()
Set	keySet()
Object	put(Object key, Object value)
void	putAll(Map map) This optional method has not been implemented for `IdentityMap` instead it throws a `UnsupportedOperationException` as defined in the `Map` interface.
Object	remove(Object key)
int	size()
Collection	values() In contrast with the design contract of the `Map` interface this method has not been implemented and throws a `UnsupportedOperationException`.

Method Detail

clear

public void clear()

{@inheritDoc }

containsKey

public boolean containsKey(Object key)

{@inheritDoc }

See Also: java.util.Map#containsKey(java.lang.Object)

containsValue

public boolean containsValue(Object value)

In contrast with the design contract of the Map interface this method has not been implemented and throws a UnsupportedOperationException. {@inheritDoc }

entrySet

public Set entrySet()

In contrast with the design contract of the Map interface this method has not been implemented and throws a UnsupportedOperationException. {@inheritDoc }

get

public Object get(Object key)

{@inheritDoc }

See Also: java.util.Map#get(java.lang.Object)

isEmpty

public boolean isEmpty()

{@inheritDoc }

keySet

public Set keySet()

{@inheritDoc }

put

public Object put(Object key, Object value)

{@inheritDoc }

See Also: java.util.Map#put(java.lang.Object, java.lang.Object)

putAll

public void putAll(Map map)

This optional method has not been implemented for IdentityMap instead it throws a UnsupportedOperationException as defined in the Map interface. {@inheritDoc }

remove

public Object remove(Object key)

{@inheritDoc }

See Also: java.util.Map#remove(java.lang.Object)

size

public int size()

{@inheritDoc }

values

public Collection values()

In contrast with the design contract of the Map interface this method has not been implemented and throws a UnsupportedOperationException. {@inheritDoc }