public void setWaitInterval(long waitInterval) {
      this.waitInterval = waitInterval;
    }
Process this notification by adding it to metastore DB.

@param event NotificationEvent is the object written to the metastore DB.
@param listenerEvent ListenerEvent (from which NotificationEvent was based) used only to set the
                     DB_NOTIFICATION_EVENT_ID_KEY_NAME for future reference by other listeners.
hcatalog/server-extensions/src/main/java/org/apache/hive/hcatalog/listener/DbNotificationListener.java