super(manager, Group.class);
Preconditions.checkNotNull(db, "DataBroker can not be null!");
this.listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
super(manager, Group.class);
Preconditions.checkNotNull(db, "DataBroker can not be null!");
this.listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,