net.cscott.jutil

Class UnmodifiableMap<K,V>

java.lang.Object

net.cscott.jutil.MapWrapper<K,V>

net.cscott.jutil.UnmodifiableMap<K,V>

All Implemented Interfaces:

Map<K,V>

Direct Known Subclasses:

UnmodifiableMultiMap

public abstract class UnmodifiableMap<K,V>
extends MapWrapper<K,V>

This wrapper for Maps implements Map.entrySet() so that it returns an UnmodifiableMapSet.

Version:

$Id: UnmodifiableMap.java,v 1.2 2006-10-30 16:19:00 cananian Exp $

Author:

C. Scott Ananian

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	UnmodifiableMap()

Method Summary

Modifier and Type	Method and Description
void	clear() Throws UnsupportedOperationException.
abstract MapSet<K,V>	entrySet()
Set<K>	keySet() Throws UnsupportedOperationException.
static <K,V> UnmodifiableMap<K,V>	proxy(Map<K,V> m)
V	put(K k, V v) Throws UnsupportedOperationException.
void	putAll(Map<? extends K,? extends V> m) Throws UnsupportedOperationException.
V	remove(Object o) Throws UnsupportedOperationException.
Collection<V>	values()

Methods inherited from class net.cscott.jutil.MapWrapper

containsKey, containsValue, equals, get, hashCode, isEmpty, size, toString, wrapped

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

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

Constructor Detail

UnmodifiableMap

protected UnmodifiableMap()

Method Detail

proxy

public static <K,V> UnmodifiableMap<K,V> proxy(Map<K,V> m)

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

Overrides:

values in class MapWrapper<K,V>

entrySet

public abstract MapSet<K,V> entrySet()

Specified by:

entrySet in interface Map<K,V>

Overrides:

entrySet in class MapWrapper<K,V>

clear

public void clear()

Throws UnsupportedOperationException.

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class MapWrapper<K,V>

keySet

public Set<K> keySet()

Throws UnsupportedOperationException.

Specified by:

keySet in interface Map<K,V>

Overrides:

keySet in class MapWrapper<K,V>

put

public V put(K k,
             V v)

Throws UnsupportedOperationException.

Specified by:

put in interface Map<K,V>

Overrides:

put in class MapWrapper<K,V>

putAll

public void putAll(Map<? extends K,? extends V> m)

Throws UnsupportedOperationException.

Specified by:

putAll in interface Map<K,V>

Overrides:

putAll in class MapWrapper<K,V>

remove

public V remove(Object o)

Throws UnsupportedOperationException.

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class MapWrapper<K,V>