Contents
What is parallel inheritance Hierarchies?
Parallel Inheritance Hierarchies occur when an inheritance tree depends on another inheritance tree by composition, and they maintain a special relationship where one subclass of a dependent inheritance must depend on one a particular subclass of another Inheritance.
What is a list in anaplan?
Lists are groups of related items, such as people in a department, products on a shopping list, or the regions comprising a geographic area. They are fundamental to Anaplan as they define the structure and content of a model.
How to get used to parallel inheritance hierarchies?
1. Keep the parallel hierarchies open and get used to it. Better way to maintain SRP. The code will be flexible. To Add a new feature, we have to create two classes every time. May change in one need to change in Other hierarchies as they are coupled.
How to de-duplicate parallel inheritance in Java?
You may de-duplicate parallel class hierarchies in two steps. First, make instances of one hierarchy refer to instances of another hierarchy. Then, remove the hierarchy in the referred class, by using Move Method and Move Field.
When do parallel inheritance hierarchies occur in code smell?
In this article, we discuss the “Parallel Inheritance Hierarchies” code smell. Parallel Inheritance Hierarchies occur when an inheritance tree depends on another inheritance tree by composition, and they maintain a special relationship where one subclass of a dependent inheritance must depend on one a particular subclass of another Inheritance.
How to deal with parallel inheritance in SRP?
There are three possible way we can deal with it. Keep the parallel hierarchies open and get used to it. Better way to maintain SRP. The code will be flexible. To add a new feature, we have to create two classes every time. Hierarchies are coupled. Changes in one might necessitate changes in the other. Harder to maintain.