Hibernate 子查询和 DetachedCriteria

发布于 2024-08-31 11:23:09 字数 1055 浏览 10 评论 0原文

我创建了一个 DetachedCriteria，用于检索 isApproved 和 isPublished 设置为 true 的资产。它是这样定义的：

DetachedCriteria activePublishedCriteria = DetachedCriteria.forClass(Estate.class)
    .add(Restrictions.eq("isApproved", true))
    .add(Restrictions.eq("isPublished", true))
    .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);

我想在某些查询中重用此条件。在这种情况下，我想用 DetachedCriteria 替换 isApproved 和 isPublished 限制

Criteria criteria = getSession().createCriteria(Estate.class)
       .createAlias("city", "c")
       .add(Restrictions.eq("c.id", cityID))
       // the following 2 lines should use the DetachedCriteria 
       .add(Restrictions.eq("isApproved", true))
       .add(Restrictions.eq("isPublished", true))
       .setProjection(Projections.rowCount());
  return (Integer) criteria.list().get(0);

有没有办法做到这一点？尝试使用

.add(Subqueries.geAll(....

但无法使其正常工作。我找不到有关 Hibernate 子查询的正确文档。欢迎提示。

原文

I have created a DetachedCriteria that is retrieving estates that have the isApproved and isPublished set to true. It is defined in this way:

DetachedCriteria activePublishedCriteria = DetachedCriteria.forClass(Estate.class)
    .add(Restrictions.eq("isApproved", true))
    .add(Restrictions.eq("isPublished", true))
    .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY);

I would like to reuse this criteria in some of the queries. In this case I would like to replace the isApproved and isPublished restrictions with the DetachedCriteria

Criteria criteria = getSession().createCriteria(Estate.class)
       .createAlias("city", "c")
       .add(Restrictions.eq("c.id", cityID))
       // the following 2 lines should use the DetachedCriteria 
       .add(Restrictions.eq("isApproved", true))
       .add(Restrictions.eq("isPublished", true))
       .setProjection(Projections.rowCount());
  return (Integer) criteria.list().get(0);

Is there a way to do this ? Tried to use