public void add(K k, V v) {
HashSet<V> hs = hm.get(k);
if (hs==null) hm.put(k, hs = new HashSet<V>());
+ size -= hs.size();
hs.add(v);
+ size += hs.size();
}
public void addAll(K k, Iterable<V> iv) {
public void remove(K k, V v) {
if (hm.get(k)==null) return;
- hm.get(k).remove(v);
+ HashSet<V> hs = hm.get(k);
+ if (hs==null) return;
+ size -= hs.size();
+ hs.remove(v);
+ size += hs.size();
+ }
+
+ public void removeAll(K k, Iterable<V> iv) {
+ for(V v : iv) remove(k, v);
}
public void clear() { hm.clear(); }
return hm.get(k)!=null && hm.get(k).contains(v);
}
+ public void addAll(HashMapBag<K,V> hmb) {
+ for(K k : hmb) addAll(k, hmb.getAll(k));
+ }
+ public void removeAll(HashMapBag<K,V> hmb) {
+ for(K k : hmb) removeAll(k, hmb.getAll(k));
+ }
+
public Iterator<K> iterator() { return hm.keySet().iterator(); }
+ public int size() { return size; }
+ private int size = 0;
}