EJB to RDB (bottom-up) Mapping does not generate a primary key
posted 13 years ago
I use the bottom-up mapping approach to generate enterprise beans and map from an existing database. However, after generating the beans, I got one warning message and one error.
Warning message - A primary key does not exist for table: CUSTOMER Error message - Key class CustomerKey does not map to any fields in enterprise bean Customer. (EJB 2.0:10.8, 22.5).
In other words, it does create a CUSTOMER table in the Database module. However, there is no primary key in this table. Consequently, although it created a key class CustomerKey.java, it does not map to any fields in the bean/table, because there is no primary key generated.
When I looked at the associated existing table that I used to generate the bean, there is a primary key defined. Does anybody know why I got the errors?
I am using IBM WebSphere Studio Application Developer v 5.1.1 and DB2 Universal Database for iSeries, V5R2.
I am new to this area and this issue really bothers me for a few days. Please let me know if you have any ideas.