public Map<String, Set<String>> getReverseResourcePathMap(SessionState.ResourceType t) {
    Map<String, Set<String>> result = reverse_resource_path_map.get(t);
    if (result == null) {
      result = new HashMap<String, Set<String>>();
      reverse_resource_path_map.put(t, result);
    }
    return result;
  }
Retrieves the query cache for the given query.
@param queryId the unique identifier of the query
@return the cache for the query
ql/src/java/org/apache/hadoop/hive/ql/session/SessionState.java