// helper methods /////////////////////////////////////////////////////////// protected internal virtual void addActivityHandlers(ActivityImpl activity) { if (historyLevel.isHistoryEventProduced(HistoryEventTypes.ACTIVITY_INSTANCE_START, null)) { activity.addBuiltInListener(PvmEvent.EVENTNAME_START, ACTIVITY_INSTANCE_START_LISTENER, 0); } if (historyLevel.isHistoryEventProduced(HistoryEventTypes.ACTIVITY_INSTANCE_END, null)) { activity.addBuiltInListener(PvmEvent.EVENTNAME_END, ACTIVITY_INSTANCE_END_LISTENER); } }