I am working on a project that takes in a common code base or SQL, HBM, and POJO files. I take the SQL files and build the database. I use the Hibernate mapping files and POJOs and I hit the ground running.

I have the requirement and capability to add columns to the common tables in the database. For example I add column ‘ticker_symbol’ to the common table ‘business’.

I create a POJO. In this example I create MyBusinessObj class that extends the common POJO BusinessObj. In my new class I include the getter and setter methods for this new ticker_symbol field.

My next step is to create the Hibernate mapping file. This is where I am stuck. Could someone help me out here? Point me in the right direction?

Thanks,
Chuck

hibernate tools

http://www.hibernate.org/255.html

I should have mentioned this. I cannot just regenerate the mapping file out. The common mapping file has been tweaked for optimization.

I also cannot just add to this original mapping file. I do not have the privilege to.

I want to have a new mapping file extend from the common one.

ohh, I missed that line. I don't know if you can extend mapping files.

But I know you can extend classes. Can you copy what's in that mapping file and just make a new one?

I can as an absolute last resort ... but do not want to. If the common mapping changed I do not want to be respondsible to update my local copy.

I cannot say I found what I wanted ... but my solution is to create a sub class. So I would create a new table that would just contain the business id and the ticker symbol.