ChangeState changeState = new ChangeState(propertyTitle, trackingVisitor, currentFingerprints, previousFingerprints);

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

    private static class TrackingVisitor implements ChangeVisitor {