class LinearId implements Id {

    @Override
    public int hashCode() {
        if (data_ == null) {
            return 0;
        }
        return data_[data_.length - 1].hashCode();
    }

    public  LinearId();
    public  LinearId(String id);
    public  LinearId(String parent, String tail);
    public  LinearId(String... id);
    public  LinearId(String[] ids, IdAggregator aggregator);
    private  LinearId(String[] ids, IdAggregator aggregator, Void private_constructor);

}