March 2010
Intermediate to advanced
408 pages
9h 59m
English
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Read-through caching
When using cache aside, the application has to check both the cache and (potentially) the database when reading data. Although these operations can be abstracted away for most of the part, it would be easier if the developer could deal with just one source of data.
This is exactly what the read-through pattern provides. With the read-through pattern, the cache is the single interface the application deals with when reading data. If the requested piece of data exists in the cache it will be returned, thus avoiding a hit to the database. If the data is not in the cache, the cache itself will fetch the data from the database, store it, and return the value to the client. This approach has the following advantages:
- The responsibility ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.