/**
* Clears cached recommendations for the given user.
*
* @param userID clear cached data associated with this user ID
*/
public void clear(final long userID) {
log.debug("Clearing recommendations for user ID '{}'", userID);
recommendationCache.remove(userID);
estimatedPrefCache.removeKeysMatching(
new Cache.MatchPredicate<LongPair>() {
@Override
public boolean matches(LongPair userItemPair) {
return userItemPair.getFirst() == userID;
}
});
}
