Load - caches and so forth?

[Alex Tweedly]

Dave Cragg wrote:

>
>> Finally if I want a semi-permanent disk based "cache" - I guess I  
>> should trap something using a front script? What would be the best  
>> way to do this? Trap "getUrl"?, passing it if the url is not in the  
>> disk based cache?
>
>
> I'd be wary of trapping geturl. This is a handler inside libUrl that  
> gets called directly by the engine, and it contains some irregular  
> syntax.
>
> Why not just have your own set of handlers for getting urls. Crude  
> example:
> <...>
> Sorry, no space for the isInCache, getFromCache, putInCache  handlers. 
> :-)
>
And the most important - invalidateCache() and invalidateCacheEntry()
Coming up with the right strategy to do this may be the hardest part, 
depending on your application :-)

It can certainly lead to some hair-pulling debugging sessions (he said, 
displaying scars to prove it :-)



-- 
Alex Tweedly       http://www.tweedly.net



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