code: public static Collection<Comparable<?>> getTableShardingValues(final String logicTable) {
          return null == HINT_MANAGER_HOLDER.get() ? Collections.<Comparable<?>>emptyList() : HINT_MANAGER_HOLDER.get().tableShardingValues.get(logicTable);
      }
docs: Get table sharding values.
  
  @param logicTable logic table name
  @return table sharding values