[wp-trac] [WordPress Trac] #22661: Allow object caches to degrade gracefully

[WordPress Trac]

#22661: Allow object caches to degrade gracefully
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 Reporter:  markjaquith   |       Owner:
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  Future Release
Component:  Cache API     |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  2nd-opinion   |     Focuses:
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Comment (by jipmoors):

 Using filters it not going to work. The only problem is wp_cache_get which
 needs to be able to return a 'null' when the cache contains this value for
 a key.

 A method that allows you to registers a cache handler with a priority
 would be a solution.
 The public functions will work through the registered handlers until the
 request is completed.
 The handlers should extend the WP_CacheHandler abstract class to ensure
 minimal function compliance.

 I think this is a concept that has a lot of potential and will see if I
 can make an elegant implementation.

 Please forget/ignore/remove my previous patches.

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Ticket URL: <https://core.trac.wordpress.org/ticket/22661#comment:15>
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