Hi All. I need a design advice on my module, Data::ParseBinary.
The module works in the Composite design pattern, which means that all the classes inherent from one base class "base", and each object may have zero or more "children". The base class defines two methods, build and destroy, and each sub-class must implement them, optionally calling the same method in it's children, if exists and if it decides to. The current operation is pretty naive, that the program calls the root object, and it calls it's children's methods and so on. The problem is that this design is not flexible. what if I want to print a debug message before and after every object in the hierarchy? What if I want to also print what each action returned? After a talk with Shlomo, I'm thinking about modifying the system to iterator-style, where the iterator will traverse the object tree, and each object will queue it's children in the iterator. What do you think? How would you do it? Shmuel. _______________________________________________ Perl mailing list [email protected] http://perl.org.il/mailman/listinfo/perl
