Thomas Martin ha scritto:
Hi List
I'm looking for a way to remove the cache of a website from within the
code.
Hi Thomas.
I'm not sure 100% that it is the only option, but I think that you can
reach your need implementing a custom CachePolicy.
The default CachePolicy (info.magnolia.....cachepolicy.Default) uses
EHCache to store full page rendered code with a key represented by full
page url.
To set a custom cachePolicy go under CONFIG > modules > cache > config >
configuration > default > cachepolicy and overwrite the default cache
policy class.
Remember to extend the default cache policy class to keep the code
effort at minimum.
We have implemented our cache policy wich uses a separated page cache
manager (a simple RAM-based singleton with synchronized interface
methods) and doing that we can flush the entire site cache simply
clearing our custom cache (Cache.reset()).
We intercept this command into our template renderer, because we have
only 1 tpl renderer. But you can also use a custom filters, so that you
can flush the cache from URL. Using a save handler is anyway an option,
of course..
PS: our cache policy keep a page cached only for 1 minute, because we
have a lot of user-generated content too (pages are much dynamic).
HTH
Matteo
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