net.ontopia.utils
Class HashMapIndex<K,E>

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap<K,E>
          net.ontopia.utils.HashMapIndex<K,E>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<K,E>, LookupIndexIF<K,E>

public class HashMapIndex<K,E>
extends java.util.HashMap<K,E>
implements LookupIndexIF<K,E>

INTERNAL: A lookup index that extends HashMap. It never forgets what it is told using put(), but will, if given a fallback object, ask the fallback for values it does not have.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Field Summary

protected LookupIndexIF<K,E>

fallback

Constructor Summary

HashMapIndex()

HashMapIndex(LookupIndexIF<K,E> fallback)

HashMapIndex(java.util.Map<K,E> map)

HashMapIndex(java.util.Map<K,E> map, LookupIndexIF<K,E> fallback)

Method Summary

E	get(java.lang.Object key)

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.ontopia.utils.LookupIndexIF

put, remove

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

fallback

protected LookupIndexIF<K,E> fallback

Constructor Detail

HashMapIndex

public HashMapIndex()

HashMapIndex

public HashMapIndex(java.util.Map<K,E> map)

HashMapIndex

public HashMapIndex(LookupIndexIF<K,E> fallback)

HashMapIndex

public HashMapIndex(java.util.Map<K,E> map,
                    LookupIndexIF<K,E> fallback)

Method Detail

get

public E get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,E>

Specified by:

get in interface LookupIndexIF<K,E>

Overrides:

get in class java.util.HashMap<K,E>