Inheritance and specific class level query

pbzdyl · **Joined:** Sun Jan 23, 2005 6:49 pm **Posts:** 7

Hello,

I have following class structure:

Code:

public class A {
    private Long id;
    private String field1;
    // getters and setters omitted
}
public class B extends A {
    private String field2;
    // getters and setters omitted
}
public class C extends B {
    private String field3;
    // getters and setters omitted
}

I use joined-subclass inheritance:

Code:

<class name="A" table="class_a" ...>
[... id, fields ...]
    <joined-subclass name="B" table="class_b">
        <key column="a_id"/>
        [ fields ... ]
        <joined-subclass name="C" table="class_c">
            <key column="b_id"/>
            [ fields.... ]
        </joined-subclass>
    </joined-subclass>
</class>

Everything (creating, updating, deleting etc) works fine.

I don't know how to get all instances of class B, but only of class B (without instances of class C which are extending class B), or how to get all instances only of class A (without instances of B and C).

Warm regards,