class PortPairManager extends AbstractListenerManager<PortPairEvent, PortPairListener> implements
        PortPairService {

    @Override
    public boolean removePortPair(PortPairId portPairId) {
        checkNotNull(portPairId, PORT_PAIR_NULL);

        portPairStore.remove(portPairId);
        if (portPairStore.containsKey(portPairId)) {
            log.debug("The portPair is removed failed whose identifier was {}", portPairId.toString());
            return false;
        }
        return true;
    }

}