子句

Question

我从Hibernate开始， 我有以下代码：

public List<Table> getDaoByDate(Date valDate, boolean checkPast, Class daoClass)  {
     EntityManager em = factory.createEntityManager();
    em.getTransaction().begin();

    CriteriaBuilder builder = factory.getCriteriaBuilder();
    CriteriaQuery criteriaQuery = builder.createQuery(daoClass);
    Root table = criteriaQuery.from(daoClass);
    criteriaQuery.select(table);

    SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy");

    String[] let = { "A", "B", "CD", "D", "DB", "DN", "DR", "DV", "E", "ER", "H", "J", "K", "KR", "L", "M",
            "N", "Q", "RE", "S", "W", "Z" };
    List<String> valuesErtae = Arrays.asList(let);

    In<Object> inLet = builder.in(table.get("let"));

    for (String value : valuesErtae) {
        inLet.value(value);
    }

    Predicate globalRestr = inLet;
    if (!checkPast) {
        In<Object> inAnnouncement = builder.in(table.get("FirstDate"));
        inAnnouncement.value(sdf.format(valDate));

        globalRestr = builder.and(globalRestr, inAnnouncement);
    }
    globalRestr = builder.and(globalRestr,  builder.lt(builder.concat(builder.concat( builder.substring(table.get("TestDate"), 5, 4), builder.substring(table.get("TestDate"), 3, 2)), builder.substring(table.get("TestDate"), 1, 2)).as(Number.class), 20180219));

    criteriaQuery.where(globalRestr);

    TypedQuery q = em.createQuery(criteriaQuery);

    List<Table> dao = null;
    try {
        dao = q.getResultList();

        ...

我加入后  globalRestr = builder.and（globalRestr，builder.lt（builder.concat（builder.concat（builder.substring（table.get（“TestDate”），5,4），builder.substring（table.get（“TestDate”）） ，3，2）），builder.substring（table.get（“TestDate”），1,2））。as（Number.class），20180219））;

得到：

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: expecting CLOSE, found '.' near line 1, column 501

我想要实现的目标是：

and substring(TestDate, 5,4)+ substring(TestDate, 3,2)+ substring(TestDate, 1,2) < '20180312'

添加此条件应该是什么方法？ THX