@Override
public void close() {
assert shardKeyMap.size() == 0 : shardKeyMap.size();
assert shardStats.isEmpty() : shardStats.keySet();
assert stats2.isEmpty() : stats2;
cache.clear();
}
/** Clear all entries that belong to the given index. */
public void clearIndex(String index) {
final Set<Object> coreCacheKeys = shardKeyMap.getCoreKeysForIndex(index);
for (Object coreKey : coreCacheKeys) {
cache.clearCoreCacheKey(coreKey);
}
// This cache stores two things: filters, and doc id sets. Calling
// clear only removes the doc id sets, but if we reach the situation
// that the cache does not contain any DocIdSet anymore, then it
// probably means that the user wanted to remove everything.
if (cache.getCacheSize() == 0) {
cache.clear();
}
}