code: public WriteResult<T, K> updateMulti(T query, T object) throws MongoException {
          return update(query, object, false, true);
      }
docs: calls {@link DBCollection#update(com.mongodb.DBObject, com.mongodb.DBObject, boolean, boolean)} with upsert=false and multi=true
  
  @param query  search query for old object to update
  @param object object with which to update <tt>query</tt>
  @return The result
  @throws MongoException If an error occurred