net.kwfgrid.gwes.uiproxy
Class HashMapOfMaps

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap
          net.kwfgrid.gwes.uiproxy.HashMapOfMaps

All Implemented Interfaces:

Serializable, Cloneable, Map

public class HashMapOfMaps
extends HashMap

A two dimensional HashMap.

See Also:

Serialized Form

Nested Class Summary

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

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

Constructor Summary

HashMapOfMaps()

Method Summary

Map	createKey(Object key) Create a mapping from the specified key to an empty map.
Object	get(Object key1, Object key2) Get the value for a two dimensional mapping.
Map	getMap(Object key) Get the map the specified key is mapped to.
Object	put(Object key, Object value) Overridden.
Object	put(Object key1, Object key2, Object value) Create a two dimensional mapping for the specified keys and value.
Object	remove(Object key1, Object key2) Remove a two dimensional mapping.

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, 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 java.util.Map

equals, hashCode

Constructor Detail

HashMapOfMaps

public HashMapOfMaps()

Method Detail

createKey

public Map createKey(Object key)

Create a mapping from the specified key to an empty map. If the key already exists this method will do nothing.

Returns:

The map the specified key is mapped to.

put

public Object put(Object key,
                  Object value)

Overridden. This method is not allowed for this class and thus does nothing.

Specified by:

put in interface Map

Overrides:

put in class HashMap

Returns:

null

put

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

Create a two dimensional mapping for the specified keys and value.

Returns:

The value formerly mapped to the specified keys (maybe null).

getMap

public Map getMap(Object key)

Get the map the specified key is mapped to.

Returns:

The map or null if no mapping for the specified key exists.

get

public Object get(Object key1,
                  Object key2)

Get the value for a two dimensional mapping.

remove

public Object remove(Object key1,
                     Object key2)

Remove a two dimensional mapping.

Returns:

The value formerly mapped to the specified keys.