org.apache.lucene.util
Class MapOfSets

java.lang.Object
  org.apache.lucene.util.MapOfSets

public class MapOfSets
extends Object

Helper class for keeping Lists of Objects associated with keys. WARNING: THIS CLASS IS NOT THREAD SAFE

Constructor Summary

MapOfSets(Map m)

Method Summary

Map	getMap()
int	put(Object key, Object val) Adds val to the Set associated with key in the Map.
int	putAll(Object key, Collection vals) Adds multiple vals to the Set associated with key in the Map.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapOfSets

public MapOfSets(Map m)

Parameters:

m - the backing store for this object

Method Detail

getMap

public Map getMap()

Returns:

direct access to the map backing this object.

put

public int put(Object key,
               Object val)

Adds val to the Set associated with key in the Map. If key is not already in the map, a new Set will first be created.

Returns:

the size of the Set associated with key once val is added to it.

putAll

public int putAll(Object key,
                  Collection vals)

Adds multiple vals to the Set associated with key in the Map. If key is not already in the map, a new Set will first be created.

Returns:

the size of the Set associated with key once val is added to it.