protected ID idFromRedisKey(String redisKey) {
		// + 1 is for "." length
		String serialized = redisKey.substring(repoPrefix.length() + 1);
		return deserializeId(serialized);
	}
Deserialize an entity id from its String representation.
spring-xd-analytics/src/main/java/org/springframework/xd/store/AbstractRedisRepository.java