I heard that .NET 4 has a new caching API.
Okay, so the good old System.Web.Caching.Cache
(which is, by the way, still there in .NET 4) has the ability to set so-called CacheDependency
objects to determine whether a cached item is expired or not.
One can also specify custom logic for determining whether a cached item is still useable or not by deriving a custom subclass from CacheDependency
.
I'm curious, is there a way to provide such a logic in the new API?