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Showing posts from August, 2009

Sub Class Mapping

Mapping Inheritance with Java Classes In just about any application, some kind of inheritance hierarchy needs to be mapped to permanent stor- age. As you saw there are several ways to map the inherence hierarchy. In our mapping, we’ll consider the following methods: ❑ Table-per-class hierarchy ❑ Table-per-subclass ❑ Table-per-concrete class