Hi folks, I'd like to ask for suggestions for a problem solution regarding the typesafe handling of cache keys in JCS.
Previously, JCS was not aware of key and value types. So it was possible to mix cache elements having different key types within the same cache instance. This "feature" was abused to implement the cache groups, so that keys of e.g. type String were combined with keys of type GroupAttrName. The current implementation implements this functionality by hacking around the generics type definitions (in all cache implementations) which is definitely not desirable. It also may cause ClassCastExceptions. As I see it, it would be better to use some kind of decorator pattern for the GroupCacheAccess functions that wraps around a regular CacheAccess object. This would mean type-safety at the cost of major API changes. Also it would have the advantage that the cache implementations do not have to know about cache groups at all. Are there better solutions? Other ideas how to resolve this? Your thoughts are very much appreciated. Bye, Thomas. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
