[jboss-dev-forums] [Design of JBossCache] - SingletonStoreCacheLoader in 2.0

[galder.zamarreno@jboss.com]

Couple of things came to my mind while I was coding this:

- AsyncCacheLoader and SingletonStoreCacheLoader share the same 
paradigm in that none of them write to the actual store, but delegate to an 
underlying cache loader. I thought about extending the CacheLoader 
interface, creating an interface named DelegatingCacheLoader. This would 
containg a getCacheLoader() method that would return the underlying 
CacheLoader instance. This would also simplify 
CacheLoaderInterceptor.isCustomCacheLoaderConfigured() implementation 
as the instanceOf would be done by DelegatingCacheLoader instead of the 
individual caches.

- Also, let's say a customer creates a singleton and async cacheloader. The 
delegating order should not be any problem, but I'd quite likely have singleton
 on top so that if the node is not the coordinator, don't even bother with the 
async layer.

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