code: public boolean containsValue(Object value) {
  		// the value is a direct hit from our cache
  		if(cache.containsValue(value))
  			return true;
  		// the value is a direct hit from our hashmap
  		if(container.containsValue(value))
  			return true;
  		
  		// otherwise, the value isn't within this object
  		return false;
  	}
docs: checks whether a specific value is container within either container or cache