Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
is there a design pattern who’s structure looks like this. B owns a reference to A, and also do some work using A. and further more, each sub class in hierarchy B relay on a sub class in hierarchy A to do its work.
its code looks like https://codereview.stackexchange.com/questions/12412/two-related-hierarchies-of-classes
This is a parallel inheritance hierarchy, and more commonly viewed as an anti-pattern.
There’s some discussion of it on Ward’s Wiki and at Lambda the Ultimate that might be worth reading.