Problem/Motivation
I tried to build a caching decorator for the default mysql cache tag invalidator.
But the 'consistent' backend only gives me a calculateChecksum method, while what I need are the current values for the tags.
Proposed resolution
- Add a getValues() method to the CacheTagsChecksumInterface
Remaining tasks
- Create patch
- Extend unit tests
User interface changes
* None
API changes
* Add getInvalidations(array $tags) method to the Interface and in core validators.