public static Object getByKey(String key) throws OkuyamaClientException{
		OkuyamaClient client = null;
		try {
			client = getClient();
			Object[] result = client.getObjectValue(key);
			if (result[0].equals("true")) {
				return result[1];
			}
		} finally {
			if (client != null) {
				client.close();
			}
		}
		return null;
	}