“in subselect"的休眠标准 [英] Hibernate Criteria for "in subselect"

问题描述

我正在尝试做这样的事情，但使用 Criteria 而不是 HQL:

I'm trying to do something like this, but using Criteria instead of HQL:

select user from User where user in (
    select user from UserDomain where domain.id = "XXX"
)

User 是与连接表 UserDomain 具有 一对多 关系的实体.这里的重点只是找到链接到具有 id = "XXX" 的 Domain 的用户.

User being an entity having a one-to-many relationship to the join table UserDomain. The point here is simply to find Users that are linked to a Domain having id = "XXX".

这看起来应该很简单……但到目前为止我还没有找到任何有用的文档.

This seems like it should be very simple... but I'm having no luck so far turning up any useful docs.

推荐答案

我终于找到了.事实证明这毕竟不是那么难......一旦你知道！

I finally found it. Turns out it wasn't so hard after all... once you know!

criteria = criteria.createCriteria(User.USER_DOMAINS).add(Restrictions.eq(UserDomain.DOMAIN, domain));

是的，有一个，在 Javadoc 中正盯着我的脸:http://www.dil.univ-mrs.fr/~massat/docs/hibernate-3.1/api/org/hibernate/Criteria.html

Yep, there is was, staring me right in the face in the Javadoc: http://www.dil.univ-mrs.fr/~massat/docs/hibernate-3.1/api/org/hibernate/Criteria.html

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