return newToken != null;
    }

    public boolean isDeleted() {
        return isUpdated() && newToken.length() == 0;
    }

    @Override
    public int hashCode() {
        return Objects.hash(pos, reading, segmentation, token);
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }