I have a new idea:
Because the only goal for this $parameter_config hashref is to validate the parameters given to the constructor new() I could write a class ValidateNewParameter.pm. The base_class creates a new ValidateNewParameter object and stores lots of parameters in it. And all the derived datatypes clone this object and add only there changes. I think this could work!

And I can even reuse this behaviour in other modules. Also, base_class gets cleaner.

What do you think about this idea? Have I overseen something important?

Thank you very much

In reply to new idea - please comment on this by uwevoelker
in thread OO - problem with inheritance by uwevoelker

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