Liquibase Hibernate and composite-id

General Discussion
1

Hi there,


I’m trying to get a composite-id to work with liquibase but I can’t get it done.


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I get the following error:


org.hibernate.MappingException: entity class not found: com.my.domain.ExamFormAttribute

at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:137) 

Any idea?

2

To explain a bit more, I am trying to generate my changelog from my hibernate files. If I put a simple id field it works great but as soon as I do a composite-id, it fails. I have a relation A-----[order]------B so I need to map a table with A_id, B_id + my parameter [order]. Liquibase-hibernate can’t seem to be able to generate a changelog from that.

3

I’ve been trying different mapping and can’t get liquibase to understand them. My mapping is validated by hibernate, hbm2ddl understands and creates the table with the right primary/foreign keys.


Does the liquibase-hibernate ext even support the composite-id mapping? 


Thx 

4

It must not be handling that correctly. Liquibase reads the metadata provided by hibernate, but composite IDs are probably an edge case not handed correctly.


I created https://github.com/liquibase/liquibase-hibernate/issues/28 to track the problem.


Nathan

5

Thank you!Ok, I hope it will be fixed in future revisions. 

6

Just to follow-up on this and if someone get this kind of problem, a workaround is to use composite-element as explained here. Doing so is supported by the extension and creates the right table/keys.