>> (1) Implementation of Action Interface is optional, then execute() method in Action class(POJO or any) how it will work?
Reflection? That said, I've found that I extend ActionSupport almost 100% of the time because of the additional functionality it provides.
>> (2) Is ActionInvocation Class mandotory if we are not supposed to use Interceptors any more?
I'm not sure what you mean by this.
>> (3) Is ActionProxy called even from the FilterDispatcher if we are not using RMI or SOAP?
Or this.
>> (4) Is a StackValue memory kind of thing or any class?
Or this. Any object can be put in the value stack.
>> (5) Is OGNL can be put in Jsp to pull data from StackValue?
OGNL is the EL used by the
Struts 2 tags to access value stack data, although JSP EL can be used outside of the tags.
Dave