8.1. Single Table per Class Hierarchy
In the single table per class hierarchy
mapping strategy, one database table represents every class of a given hierarchy. In our example, the Person, Customer, and Employee entities are ...
8.2. Table per Concrete Class
In the table per concrete class strategy, a database table is defined for each concrete class in the hierarchy. Each table has columns representing its properties, and all properties of any superclasses.
cr...
8.3. Table per Subclass
In the table per subclass mapping, each subclass has its own table, but this table contains only the properties that are defined on that particular class. In other words, it is similar to the TABLE_PER_CLASS
strateg...
8.4. Mixing Strategies
The persistence specification currently makes mixing inheritance strategies optional. The rules for mixing strategies
in an inheritance hierarchy may be defined in future versions of the spec.
...
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