@Override
    public boolean isAnyStarted() {
        return anyStarted;
    }

    @Override
    public void onPendingChanges() {
        lock.lock();
        try {
            pendingChanges.changesMade();
            for (RegisteredDeployment deployment : deployments.values()) {
                deployment.outOfDate();
            }
        } finally {
            lock.unlock();
        }
    }

        ChangeVisitor visitor
    ) {
        TrackingVisitor trackingVisitor = new TrackingVisitor(visitor);
        ChangeState changeState = new ChangeState(propertyTitle, trackingVisitor, currentFingerprints, previousFingerprints);

        while (trackingVisitor.isConsumeMore() && changeState.hasMoreToProcess()) {
            changeState.processChange();
        }
        return trackingVisitor.isConsumeMore();
    }