util
Class Hashtable2

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--util.Hashtable2

public class Hashtable2

extends Hashtable

An extension of the Java Hashtable that allows you to address things by either 1 or 2 keys. Implemented as Hashtables inside Hashtables.

See Also:

Serialized Form

Constructor Summary

Hashtable2()

Method Summary

Object	get(Object key1, Object key2)
Enumeration	keyPairs() Returns an Enumeration of Object arrays holding the pairs of keys for addressing all elements in this two-level hashtable.
Enumeration	keys(Object key1) Returns keys of a nested hashtable.
Set	keySet(Object key1)
Object	put(Object key1, Object key2, Object value)
Object	remove(Object key1, Object key2)
int	size() Returns the number of all (leaf) objects stored here.
int	size(Object key1)

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, toString, values

Methods inherited from class java.lang.Object

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

Constructor Detail

Hashtable2

public Hashtable2()

Method Detail

put

public Object put(Object key1,
                  Object key2,
                  Object value)

get

public Object get(Object key1,
                  Object key2)

remove

public Object remove(Object key1,
                     Object key2)

keys

public Enumeration keys(Object key1)

Returns keys of a nested hashtable.

keySet

public Set keySet(Object key1)

size

public int size()

Returns the number of all (leaf) objects stored here.

Overrides:

size in class Hashtable

size

public int size(Object key1)

keyPairs

public Enumeration keyPairs()

Returns an Enumeration of Object arrays holding the pairs of keys for addressing all elements in this two-level hashtable. For elements stored at the first level, the second key is null