How to enable caching in a Spring boot application by using Mongo as database and Redis as cache

I am trying to understand how to use the spring boot caching framework that has annotations such has @EnableCaching and @Cacheable to combine both Mongo and Redis. Let's assume I have two DAO layers one for redis and one for Mongo

public class MongoDAO implements DAO{   public getValueId(String id){       //gets value from Mongo   }}public class RedisDAO implements DAO{    public getValueId(String id){      // gets value from hash map in redis. Assume HashKey is "values".    }}

I haven't found a clear example that explains how to combine both DAOs by implementing the Spring Data Caching framework. I am using Sprint Data Redis, Redis Template for the redis operations.