How to automatically refresh Cache using Google Guava?

Question

I am using Google Guava library for caching. For automatic cache refresh we can do as follows:

cache = CacheBuilder.newBuilder()               
                      


        

Answer 1

JAVA 8 version with parallel stream:

Executors
        .newSingleThreadScheduledExecutor()
        .scheduleWithFixedDelay(() -> configurationCache
                .asMap()
                .keySet()
                .parallelStream()
                .forEach((key) -> configurationCache.refresh(key)),
            0,
            1, TimeUnit.SECONDS);