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How Is The Action Class Called??

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Hi Everyone, Im working on a project where the Action class extends itself from some other class, the "execute()" method is missing in the action class but is present in its superclass, my question is : how is action class called??..the constructor simply calls the constructor of the super class, BUT HOW DOES THE execute() METHOD IN THE SUPER CLASS GET CALLED??.
Heres some of the code from both the superclass and the actionclass.Please note, the path pointed to in the struts-config is that of the subclass or the ListViewActionClass:

The Action Class:

Now, the superclass:

Thanks in advance,
Ravissant Markenday
[ April 10, 2008: Message edited by: Ravissant Markandey ]
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Originally posted by Ravissant Markandey:
how is action class called?

The execute method is inherited by the derived class. Are you familiar with inheritance?
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