使用Criteria API进行订购

Question

当我编写HQL查询时

Query q = session.createQuery("SELECT cat from Cat as cat ORDER BY cat.mother.kind.value");
return q.list();

一切安好。但是，当我编写标准时

Criteria c = session.createCriteria(Cat.class);
c.addOrder(Order.asc("mother.kind.value"));
return c.list();

我有一个例外 org.hibernate.QueryException: could not resolve property: kind.value of: my.sample.data.entities.Cat

如果我想使用“标准和顺序”，我应该如何表达我的“顺序”？

Answer 1

您需要为创建别名mother.kind。你是这样做的。

Criteria c = session.createCriteria(Cat.class);
c.createAlias("mother.kind", "motherKind");
c.addOrder(Order.asc("motherKind.value"));
return c.list();