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useBean - type & class

 
Bess Moore
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If I have
- class employee
- interface person

As I understand that I can use

<jsp:useBean id="emp" type="test.person" class ="test.employee" scope="session" />

But I don't understand in what circumstances that I would need both class and type together.
 
Ali Gohar
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But I don't understand in what circumstances that I would need both class and type together

If you want to use polymorphic behaviour
<jsp:useBean id="emp" type="test.person" class ="test.employee" scope="session" />

This will create the Employee object and will store it in Person, if the emp object is already not in session scope.
 
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