In reply to dave_59:
Thanks dave.
Actually, Central and A, B, C is class in Tool in above example, so it’s not allowed to changed them, especially add some customized component or function.
A, B, C is classes for different scenario: all read, all write, and R/W random
What I want to do is to change the transaction length(times) default defined in Central. Original length is 30, and for some scenario I need 100, so I extends A,B,C and override them to add the function to change length value.
So I would like to know is there a more efficient way to add that function, maybe a command can directly override Central Class and influence its child class A, B, C, or some way else.
Any method better than extending all child class of Central and override them would be helpful.
Thanks