Class IdentityMap

java.lang.Object

org.castor.core.util.IdentityMap

All Implemented Interfaces:

Map

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: 7491 $ $Date: 2006-04-13 10:49:49 -0600 (Thu, 13 Apr 2006) $

Author:

Ralf Joachim

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
final class	IdentityMap.Entry	An entry of the IdentityMap.

Constructor Summary

Constructors

Constructor	Description
IdentityMap()

Method Summary

Modifier and Type	Method	Description
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.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

IdentityMap

public IdentityMap()

Method Details

clear

public void clear()

Specified by:

clear in interface Map

See Also:

• Map.clear()

size

public int size()

Specified by:

size in interface Map

See Also:

• Map.size()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map

See Also:

• Map.isEmpty()

put

public Object put(Object key,
 Object value)

Specified by:

put in interface Map

See Also:

• Map.put(java.lang.Object, java.lang.Object)

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map

See Also:

• Map.containsKey(java.lang.Object)

get

public Object get(Object key)

Specified by:

get in interface Map

See Also:

• Map.get(java.lang.Object)

remove

public Object remove(Object key)

Specified by:

remove in interface Map

See Also:

• Map.remove(java.lang.Object)

keySet

public Set keySet()

Specified by:

keySet in interface Map

See Also:

• Map.keySet()

entrySet

public Set entrySet()

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

Specified by:

entrySet in interface Map

See Also:

• Map.entrySet()

values

public Collection values()

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

Specified by:

values in interface Map

See Also:

• Map.values()

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.

Specified by:

containsValue in interface Map

See Also:

• Map.containsValue(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.

Specified by:

putAll in interface Map

See Also:

• Map.putAll(java.util.Map<? extends K, ? extends V>)