public long getDeleted() {
        return deleted;
    }

    private void updateProgress() {
        buildOperationContext.progress(mandatoryNumber(deleted, " entry", " entries") + " deleted"
            + optionalNumber(", ", skipped, " skipped"));
    }

    private String mandatoryNumber(long value, String singular, String plural) {
        return value == 1 ? value + singular : value + plural;
    }