net.cscott.jutil
Class GenericInvertibleMap<K,V>

java.lang.Object
  net.cscott.jutil.MapWrapper<K,V>
      net.cscott.jutil.GenericInvertibleMap<K,V>

All Implemented Interfaces:

Map<K,V>, InvertibleMap<K,V>

public class GenericInvertibleMap<K,V>
extends MapWrapper<K,V>
implements InvertibleMap<K,V>

GenericInvertibleMap is a default implementation of InvertibleMap. It returns unmodifiable inverted views of the mappings it maintains.

Version:

$Id: GenericInvertibleMap.java,v 1.5 2006-10-30 19:58:05 cananian Exp $

Author:

Felix S. Klock II

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

GenericInvertibleMap()
Constructs an invertible map backed by a HashMap.

GenericInvertibleMap(Map<K,V> m)

GenericInvertibleMap(MapFactory<K,V> mf, MultiMapFactory<V,K> mmf)
Constructs an invertible map backed by a map constructed by mf and an inverted map constructed by mmf.

Method Summary

MultiMap<V,K>	invert() Returns an unmodifiable inverted view of this.
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)
protected Map<K,V>	wrapped()

Methods inherited from class net.cscott.jutil.MapWrapper

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, size, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, size, values

Constructor Detail

GenericInvertibleMap

public GenericInvertibleMap()

Constructs an invertible map backed by a HashMap.

GenericInvertibleMap

public GenericInvertibleMap(MapFactory<K,V> mf,
                            MultiMapFactory<V,K> mmf)

Constructs an invertible map backed by a map constructed by mf and an inverted map constructed by mmf.

GenericInvertibleMap

public GenericInvertibleMap(Map<K,V> m)

Method Detail

wrapped

protected Map<K,V> wrapped()

Specified by:

wrapped in class MapWrapper<K,V>

invert

public MultiMap<V,K> invert()

Returns an unmodifiable inverted view of this.

Specified by:

invert in interface InvertibleMap<K,V>

put

public V put(K key,
             V value)

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)

Specified by:

putAll in interface Map<K,V>

Overrides:

putAll in class MapWrapper<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class MapWrapper<K,V>