java - Can I set a TTL for @Cacheable

Question

I am trying out the @Cacheable annotation support for Spring 3.1 and wondering if there is any way to make the cached data clear out after a time by setting a TTL? Right now from what I can see I need to clear it out myself by using the @CacheEvict, and by using that together with @Scheduled I can make a TTL implementation myself but it seems a bit much for such a simple task?

Answer 1

Spring 3.1 and Guava 1.13.1:

@EnableCaching
@Configuration
public class CacheConfiguration implements CachingConfigurer {

    @Override
    public CacheManager cacheManager() {
        ConcurrentMapCacheManager cacheManager = new ConcurrentMapCacheManager() {

            @Override
            protected Cache createConcurrentMapCache(final String name) {
                return new ConcurrentMapCache(name,
                    CacheBuilder.newBuilder().expireAfterWrite(30, TimeUnit.MINUTES).maximumSize(100).build().asMap(), false);
            }
        };

        return cacheManager;
    }

    @Override
    public KeyGenerator keyGenerator() {
        return new DefaultKeyGenerator();
    }

}