Hi,

I have a POJO (IncomeEntry) which is involved in two parent-child relationships (one-to-many):



I therefore need map the IncomeEntry class to multiple tables (payslip_incomeentry and payprofile_incomeentry). I am using X-Doclet to generate my mappings.

My questions are:
1) Since the table that the class is mapped to is defined on the class using the x-doclet tag:


is there any way to model this relationship without merging a custom mapping document into the generated hibernate-cfg.xml file?

2) Is this modelling possible with ejb3 annotations?

Thanks

Maybe I don't quite understand your problem. I would appear tro me that you just need to map an inhertence hierarchy for the tables in question with the sub-domain objects containing the one-to-many mappings. This is possible with XDoclet (hence HBM) and Annotations.

Hi

There is no implicit inheritance hierarchy in the classes involved - so I don't understand how mapping a hierarchy would help me. Perhaps you could elaborate?

PayProfile and Payslip are two completely different classes. Both however have a relationship with an IncomeEntry in a one-to-many manner. In the case of a Payslip, the IncomeEntries represent the payslips income entries, whereas in the case of the PayProfile the IncomeEntries represents the payprofiles income entry.

To solve the issue I have created two new classes, PayslipIncomeEntry and PayProfileIncomeEntry. These classes are mapped to payslip_incomeentry and payprofile_incomeentry respectively. The IncomeEntry class is then mapped as a component in each of these classes. This allows me to re-use the class.

i.e.

Several options - If I understand correct the issue.
1) Could in Java have class PayslipIncomeEntry extend IncomeEntry and map it to the table - no need to have it as a component.
2) H3 only - Use the class mapping attribute 'entityname' see http://www.hibernate.org/hib_docs/v3/reference/en/html/mapping.html#mapping-declaration-class