How to use Hibernate Criteria for joining two tables with OneToMany relation
I have two tables for which I can't implement mapping @OneToMany
in their entities unless I have a circle dependency. I want to create a Hibernate Criteria so that I'd be able to join this tables on ids' fields plus a restriction. However, I have a sql query which gives me a result I'm looking for, I failed to understand how to implement the criteria.
Tables which have a shared id:
| Table A | Table B |
|id | id |
|languageId | code |
|comment | |
SQL query:
select a.id, a.languageId, a.comment, b.code from TableA a join TableB b on a.id=b.id
Could anybody help me to write the 开发者_如何学CHibernate Criteria?
Thank you in advance, L.
You cannot do it - Hibernate Criteria doesn't support join on arbitrary conditions.
You have to use HQL query (it doesn't support JOIN
syntax with arbitrary condition too, but you can use old-style syntax):
SELECT a, b FROM A a, B b WHERE a.id = b.id
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