code: private void setDefaultCapacity() {
          Object capacity = getParam("ddb_default_read_capacity"); 
          if (capacity != null) {
              READ_CAPACITY_UNITS = Integer.parseInt(capacity.toString());
          }
          capacity = getParam("ddb_default_write_capacity");
          if (capacity != null) {
              WRITE_CAPACITY_UNITS = Integer.parseInt(capacity.toString());
          }
          m_logger.info("Default table capacity: read={}, write={}", READ_CAPACITY_UNITS, WRITE_CAPACITY_UNITS);
      }
docs: Set READ_CAPACITY_UNITS and WRITE_CAPACITY_UNITS if overridden.