目标是获得具有特定ID的某些实体。我想创建一个vararg方法,它将获取实体ID并根据id返回实体列表:
@Override
public List<Entity> getEntities(long... ids) {
Session s = sessionFactory.getCurrentSession();
s.beginTransaction();
Criteria criteria = s.createCriteria(Entity.class);
for (long id : ids) {
// for very id I want to create a Restriction
// but Restriction goes like
// criteria.add(Restrictions.or(Restrictions.eq("id", id),Restrictions.eq("id", id)));
}
s.getTransaction().commit();
return null;
}
用法将是:
List<Entity> list = getEntities(453,282,781,784);
如何创建此类条件查询?
答案 0 :(得分:2)
可变数量的OR id = ?
子句就像一个IN子句。这是使用Restrictions.in
方法完成的:
criteria.add(Restrictions.in("id", ids));
答案 1 :(得分:0)
criteria.add(Restrictions.in("id", ids));
criteria.addOrder(Order.asc("id"));
将解决您的问题,它将按照您传递给varargs的相同顺序返回结果