this does not work (see KNL-1226) and use of it should be removed from code OR replaced by CacheLoader
public interface CacheRefresher
WARNING: this does NOT work and will not be called when cache entries are not found
See https://jira.sakaiproject.org/browse/KNL-1226 for more details
This defines a kind of listener method which will be called whenever a cache miss occurs.
In other words, if the cache is asked to retrieve an object by a key which does not exist
in the cache then this method will be called if defined for that cache. Then the returned
value will be returned from the lookup (or a null if no new value was found) and
also inserted into the cache (unless the value was null) WARNING: This can make your cache misses very costly so you will want to be careful
about what you make this method actually do
Similar to https://github.com/jsr107/jsr107spec/blob/master/src/main/java/javax/cache/integration/CacheLoader.java
Utility API for classes that will refresh a cache entry when expired.