public function get($key, $default = null)
	{
		if (isset($this->jar[$key]) and ! $this->jar[$key]->isDeleted())
		{
			return $this->jar[$key]->getValue();
		}
		elseif ($this->has($key))
		{
			return $this->parent->get($key, $default);
		}

		return $default;
	}