I don't understand. Are you making a cache, or a database?

You keep using the word cache. What are you caching? A cache means you are saving one calculated result in an attempt to avoid recaculating it again. A cache also means it can simply disappear, and it shouldn't affect any part of your design except to slow it down a bit. (In fact, your program should still work even if the cache was completely forgetful.)

So, are you building a cache, or a database?

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re^3: Selecting one of two implementations by merlyn
in thread Selecting one of two implementations by Tanktalus

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