DetachedCriteria是什么
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DetachedCriteria是什么
![DetachedCriteria是什么](/uploads/image/z/7631446-22-6.jpg?t=DetachedCriteria%E6%98%AF%E4%BB%80%E4%B9%88)
hibernate中可以对查询条件进行面向对象的方式来组装.
例如:
DetachedCriteria beautyCriteria = DetachedCriteria.forClass(Beauty.class,"b").;
DetachedCriteria customerCriteria = beautyCriteria.createAlias("customers",c");
beautyCriteria.add(Restrictions.le("b.age",new Long(20))):
customerCriteria.add(Restrictions.eq("c.name","Gates")):
例如:
DetachedCriteria beautyCriteria = DetachedCriteria.forClass(Beauty.class,"b").;
DetachedCriteria customerCriteria = beautyCriteria.createAlias("customers",c");
beautyCriteria.add(Restrictions.le("b.age",new Long(20))):
customerCriteria.add(Restrictions.eq("c.name","Gates")):