public Map<Integer, AgeSet> getAgeSets(String regionName) {
return new TreeMap<Integer, AgeSet>(ageMap.getMapFor(Region.getConstant(regionName)));
}
/**
* Returns a copy of the List contained in this MapKeyMap for the given ListKey. This method
* returns null if the given key is not in this MapKeyMap.
*
* <p>This method is value-semantic in that no changes are made to the object passed into the
* method and ownership of the returned List is transferred to the class calling this method.
*
* @param key The ListKey for which a copy of the list should be returned.
* @return a copy of the List contained in this MapKeyMap for the given key; null if the given key
* is not a key in this MapKeyMap.
*/
public <K, V> Map<K, V> getMapFor(MapKey<K, V> key1) {
return map.getMapFor(key1);
}