急於使用HQL加載

Question

是否可以在不觸摸映射的情況下使用HQL進行急切加載？ nHibernate完全忽略了「left join fetch」表達式。

var query = Session.CreateQuery("from o in Member left join fetch o.Photos"); 
query.List<Member>(); 

生成的SQL是

SELECT this_.Id as Id7_1_, this_.Name as Name7_1_, this_.AltNames as AltNames7_1_, 
this_.Tags as Tags7_1_, this_.Loved as Loved7_1_, profile2_.id as id6_0_, 
profile2_.Website as Website6_0_, profile2_.Email as Email6_0_, 
profile2_.Shop as Shop6_0_ 
FROM Member this_ 
left outer join member_profile profile2_ on this_.Id=profile2_.id 
limit 10; 

然後10語句抓取照片。 MemberProfile被映射爲OneToOne。

Answer 1

您可以使用關鍵字fetch：

from Cat as cat inner join fetch cat.Mate 

這將急切地加載Mate關聯。