Using Guava for high performance thread-safe caching

Question

I am trying to implement a high performance thread-safe caching. Here is the code I have implemented. I don\'t want any on demand computing. Can I use cache.asMap() and retrieve

Answer 1

Guava contributor here:

Yes, that looks just fine, although I'm not sure what the point is of wrapping the cache in another object. (Also, Cache.getIfPresent(key) is fully equivalent to Cache.asMap().get(key).)

Answer 2

If you want high performance, why don't you instanciate the Cache statically instead of using a synchronized getInstance()?