Hello,
I want to implement
EJB with @MapKey and use
JBoss 5.1.0.GA.
The following works perfectly (object A):
The database tables (mysql) will look like this:
Table A
Table B,
Table A_B with (A_id, name_id)
But I need more Maps like 'name' in A, e.g.
The database tables (mysql) will look like this:
Table A
Table B,
Table A_B with (A_id, name_id,symbol_id)
If I want to persist a object A (with a single object B in the Map name) I get this error:
Caused by: java.sql.BatchUpdateException: Field 'symbol_id' doesn't have a default value
I'm surprised a little bit about the databse structure and understand the error, but how to solve this??
Thank you
Thorsten