| Michael Watzek 2005-07-28, 5:45 pm |
| Hi Craig,
I have an orm metadata question. Consider the following inheritance mapping:
Classes "Person" and "Employee" have inheritance strategy "new-table".
Classes "PartTimeEmployee" and "FullTimeEmployee" have inheritance
strategy "superclass-table".
Is is valid to place the dicriminator column in table "employees"? The
spec seems to forbid that in chapter 18.10:
"...
In the least-derived class in the hierarchy that is mapped to a table,
declare the discriminator element with a strategy and column.
...."
If it is valid, can you have a nested <join> element and a nested
<discriminator> element in the same <inheritance> element? E.g.
<class name="Employee" table="employees">
<inheritance strategy="new-table">
<join column="PERSONID"/>
<discriminator strategy="class-name" column="DISCRIMINATOR"
indexed="true"/>
</inheritance>
...
</class>
Regards,
Michael
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