Hibernate criteria Inner join to select

问题

I have to translate the next expression into hibernate criteria api:

select * from games gs
INNER JOIN (select gg.ID, gg.CODE, max(gg.DATE) max_date from games gg 
where gg.player_id = 1 group by gg.ID, gg.CODE) ss
 on gs.CODE = ss.CODE
 and gs.ID = ss.ID
 and gs.DATE = ss.max_date
 and gs.player_id = 1

How can I do it? I'm able to create inner and outer criteria separetely, but have no idea how to join them:

    DetachedCriteria innerCriteria = DetachedCriteria.forClass(Games.class, "gg");
    innerCriteria.add(Restrictions.eq("playerId", 1));
    ProjectionList projectionList = Projections.projectionList();
    projectionList.add(Projections.groupProperty("id"));
    projectionList.add(Projections.groupProperty("code"));
    projectionList.add(Projections.max("date"));
    innerCriteria.setProjection(projectionList);

...

    Criteria criteria = getSession().createCriteria(Games.class, "gs");
    criteria.add(Restrictions.eq("playerId", 1));
    criteria.setProjection(Projections.id());
    criteria.list();

回答1:

Hibernate does not support subqueries in the from clause. From the Hibernate 4.3 documentation:

Note that HQL subqueries can occur only in the select or where clauses.

There is a pending feature request for this.

You'll have to rewrite the query to avoid that, or use native queries.

来源：https://stackoverflow.com/questions/35292257/hibernate-criteria-inner-join-to-select