archaius-core/src/main/java/com/netflix/config/sources/JDBCConfigurationSource.java
@Override
	public PollResult poll(boolean initial, Object checkPoint) throws Exception {
		// implement logic to retrieve properties from DB
		Map<String, Object> map = load();
		return PollResult.createFull(map);
	}
@Override
	public PollResult poll(boolean initial, Object checkPoint) throws Exception {
		// implement logic to retrieve properties from DB
		Map<String, Object> map = load();
		return PollResult.createFull(map);
	}
...