* static variables METRICS_TIME, PERSIST,
* and TTL when their corresponding
* properties are updated.
*/
BrokerConfig cfg = Globals.getConfig();
cfg.addListener(METRICS_TIME_PROP, cl);
cfg.addListener(PERSIST_PROP, cl);
cfg.addListener(TTL_PROP, cl);
cfg.addListener(ENABLED_PROP, cl);
}