DetachedCriteria关联有两种方式

1.    DetachedCriteria dc = DetachedCriteria.forClass(EmailPushRecord.class);

       dc.setFetchMode("user", FetchMode.JOIN);          dc.setFetchMode("emailTemplate", FetchMode.JOIN);  

       dc.createAlias("user", "user");  

       dc.createAlias("emailTemplate", "emailTemplate");  

到了这一步下面就可以直接用

      dc.add(Restrictions.or(

     Restrictions.like("user.name", messageReturn.getTitle(),MatchMode.ANYWHERE),          Restrictions.like("emailTemplate.name", messageReturn.getTitle(),MatchMode.ANYWHERE),          Restrictions.like("emailTemplate.title", messageReturn.getTitle(), MatchMode.ANYWHERE))

);

             

2.Disjunction disjunction = Restrictions.disjunction();

   DetachedCriteria dc = dc.createAlias("user", "user",      CriteriaSpecification.LEFT_JOIN).createAlias("emailTemplate",    "emailTemplate",CriteriaSpecification.LEFT_JOIN);

   disjunction.add(Restrictions.or(

   Restrictions.like("user.name", messageReturn.getTitle(),MatchMode.ANYWHERE),    Restrictions.like("emailTemplate.name", messageReturn.getTitle(),MatchMode.ANYWHERE),    Restrictions.like("emailTemplate.title", messageReturn.getTitle(), MatchMode.ANYWHERE))

   );