In this article, we will learn how we can replace long IF/ELSE or long SWITCH (long conditional statement) with polymorphism. This is also called RIP design pattern. RIP means Replace If with Polymorphism design pattern
In the below code snippet we can see a skill set which is suitable for a job opening in our company with a long condition statement, (i.e, switch statement we have used). Currently we have only two requirements. If we need to add more skills to switch statement then the conditions will keep on increasing.
We will create a Simple Factory design pattern, with class name as SimpleFactory. We will create a skill Dictionary and in constructor add all the skill sets and return the value, as shown in below code snippet,
In the above code, we have seen how we replace condition statement with Dictionary. Now we will see how we implement lazy loading.
In the above code, we have seen how we used lazy loading. Now we will see how we implement lazy loading using Lazy class from .Net framework.
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