Issac Goldstand wrote: I can see how other tracking information (like how often the
cached entity is accessed, last access time, etc) would be useful, albeit expensive to keep track of, but I don't understand this specific example.
It's not expensive, as these methods are only called when an object to added or deleted, which is relatively few if you get good cache hit ratio.
There are instances when you need to "purge" url's selectively. Think a publishing system that automatically purges cache for updated pages, for example.
-- Brian Akins Chief Operations Engineer Turner Digital Media Technologies
