Hi,
I'm trying out CachingRecommender to see how much it improves performance for
me (it does a lot when the cache is all warmed up).
One thing that I assumed would happen automatically is that the
CachingRecommender will be refreshed when the underlying file (FileDataModel)
is refreshed. Instead, I do see the FDM re-reading the input file when it
detects the change, but my recommendations remain cached forever, as I'm not
hitting memory limits.
I've been looking at the code, but can't see a clean way to "listen" to the FDM
and find out when it finished re-reading the file, so I can clear my
CachingRecommender. Is there an existing way this should be done that I'm just
not seeing in the code?
Ah, I see another thing now. Consider this:
Recommender recommender = new BooleanUserGenericUserBasedRecommender(model,
hood, similarity);
recommender = new CachingRecommender(recommender);
Now if I did somehow find a way to clear the caching recommender, I imagine I'd
want to call one of its clear(...) methods, and this requires a cast back to
CachingRecommender. Is there a better way?
Thanks,
Otis
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