How to add new CMP field to CMP bean

Question

I am back for your amusement. I have seen similar things to this in other postings, but I have not been able to find one that, when action is taken, solves my problem.
I am using Sun Java Studio Enterprise 7 2004Q4
Our database changed by adding one new field. I need to update the bean for that table. Since the bean was created from a schema, I thought I need to update the schema first. Having found no way to do that yet, I recreated the schema under a different name, deleted the old one and renamed the new one to the old name. Follow that? :|
Ok. So now I have a new schema with the old name. I still have the old one in CVS so I can get it back (see I am learning someting).
I then went to the bean and added a new CMP field. I updated all my code to use the new field accessors. Changed the create method to have one more field and use the accessor.
Then in the module where the bean is being used I mapped the new field to the field in the database. The CMP is in a relationship with two other beans, but this field is not used (not yet anyway).
I then compiled and depoyed. Everything went ok. "I am really getting the hang of this EJB stuff", I said to my self. Then I tried to run it.... I should have saved the comment for another time... :(
I got this message and exception :
"Validation error in class com.PersonCMPBean685435892_JDOState: com.sun.jdo.api.persistence.model.util.ModelValidationException: Warning: Cannot find the column person.p_umd_id for mapping the field pUmdId in the class com.PersonCMPBean685435892_JDOState.
Verify that the schema file exists and that its contents are correct."
com.sun.jdo.api.persistence.support.JDOUserException: The mapping for class com.PersonCMPBean685435892_JDOState is invalid. Compile the class in the IDE, correct any errors, and verify that all required files are packaged for execution.
The schema exists. The field is in the new schema. Hmmm. I screwed up. Stamp it on my forehead with the others from working with EJB.... :)
So what did I do wrong? How is this supposed to be done. Is there an easier way to update the schema?
Any help will be greatly appreciated. Thank you.

Answer 1

Ok. I found something that works, albeit I don't think it is the recommended way. But since I can't find a recommended way, I will settle for working. This was a suggestion from someone else who had this problem ( http://swforum.sun.com/jive/thread.jspa?forumID=122&threadID=23428 ). But I have broken it down into steps and refined it a bit.
1. Create a new schema under a different name.
2. Go to the module that has a bean that is using the old schema.
3. Find the reference for the bean under the module and look at the properties for the bean.
4. In the properties in the Sun Java System As section there is a property called Mapped Schema. Change it to the new schema.
5. deploy
There's more...
If you need to have the same name for the schema, like I did because I keep it in CVS, do this:
6. Shutdown the IDE
7. Go to the directory where the schema is and rename it to whatever you need (whatever you had originally).
8. restart the IDE
9. repeat steps 2-4
10. restart the IDE again before you deploy!
I know this is insane. But it is all I could figure out so far. If anybody has something else that is better, please, please, please let me know!