Hibernate Tools: Mappings and Annotations Fail

Question

This is driving me crazy -- I'm pretty sure that Hibernate can determine mapping relationships between tables and thus reflect this in the POJO's generated.

Except it's not.

I am using MySQL with STS & Hibernate Tools 4.0.0 and I have a one-to-many and a one-to-one table relationship, between Person <--> Phone and Phone <--> PhoneType and I am able to generate using the 'Hibernate Code Generation Configuration' the 'Domain Code' and the 'DAO Code', however neither of the files have any mappings between the tables.

Now here is a possible issue:

In order to get any annotations at all, I have switched on the option 'Generate EJB3 annotations'. Now I am using plain old Hibernate here, and not JPA.

So my questions are:

1. Can Hibernate Tools generate Annotations for plain old Hibernate?
2. Can it generate mapping information in the POJO's (i.e. @manytomany / @manytoone) ?

Thanks a lot for your help,

Bob

Answer 1

OK, I got it work at last!

The problem was, as with all things of a technical nature both simple and profound.

In a word: CaseSensitive

I had created my tables with capitaliZatioN (i.e. Person, Phone) and I used the MySQL Workbench to create the foreign keys and they looked like this:

CONSTRAINT FK_Phone_Person FOREIGN KEY (person_id) REFERENCES Person (person_id)

instead of

CONSTRAINT FK_Phone_Person FOREIGN KEY (person_id) REFERENCES person (person_id)

Notice the capitalization.

SOO happy after spending a lot of blood, sweat and tears trying to get that damn thing to work when all along the case was the problem!

Answer 2

Worked:

I created new reverse engineering XML "hibernateII.reveng.xml" from Hibernate tool plugin in STS eclipse, and it resolved the problem.

Though i had also tried changing content of existing file, but that did not work out and content of old and new files were same, weird, but new file solved the issue.