![]() For example, if you are developing an e-commerce application, then that application may have many features or functionalities such as Registering users, providing login functionality, displaying the product list, allowing the user to place an order, Providing Payment Functionality, Shipping the Order, Billing the Order, Logging the Order Information for Auditing and for Security purpose, sending the Order Invoice to the customer, etc. What is Responsibility?Īn application can have many functionalities (features). Before Proceeding further and understanding the Single Responsibility Principle, first we need to understand What is Responsibility. So, with the help of SRP in C#, the classes become smaller and cleaner and thus easier to maintain. That does not mean your class should contain only one method or property, you can have multiple members (methods or properties) as long as they are related to a single responsibility or functionality. So we need to design the software in such a way that everything in a class or module should be related to a single responsibility. In other words, we can say that each module or class should have only one responsibility to do. The Single Responsibility Principle in C# states that “ Each software module or class should have only one reason to change“. What is the Single Responsibility Principle in C#? Problems of not following the Single Responsibility Principle.Example without using the Single Responsibility Principle.How can we achieve the Single Responsibility Principle in C#?.What is the Single Responsibility Principle in C#?.As part of this article, we are going to discuss the following pointers in detail. The letter S in S OLID stands for the Single Responsibility Principle which is also known as SRP. Please read our previous article before proceeding to this article where we discussed the basics of the SOLID Design Principle in C#. In this article, I am going to discuss the Single Responsibility Principle in C# with Examples. Data Structures and Algorithms Tutorialsīack to: SOLID Design Principles in C# Single Responsibility Principle in C# with Examples.We have an interface IEmployeeStore and its implementation EmployeeStore which have the following methods. ![]() To understand the SRP principle, let’s assume we have to work on an application that involves working with employees. ![]() Let’s take another example of our own to understand better what is single responsibility principle. Similarly, in the Spring framework, classes are really very small and usually perform only one or two related actions. Log4J2 code has different classes with logging methods, different classes are logging levels and so on. To understand the single responsibility principle in the real world, we can look at the JDK code and other popular libraries such as Log4J2, Spring framework etc. Single Responsibility Principle in Action Remember that the smaller classes are always better to program with and test.Ģ. If, when looking at a class, we find methods that are mutually exclusive and do not relate to each other, it means that these methods have different responsibilities that should have to be broken down into different smaller classes. There is another way of looking at the single responsibility principle. These objects group different (mostly unrelated) behaviors, thus making them harder to maintain. If we have to make modifications to a class, for different reasons, it means the abstraction is incorrect, and that the class has too many responsibilities.īasically, we want to avoid, in all cases having objects with multiple responsibilities (often called god-objects, because they know too much, or do more than they should). ![]() It is one of the famous 5 SOLID principles.Ī class should have only one reason to change. The fact that the class has a sole responsibility means that it is in charge of doing just one concrete thing, and as a consequence of that, we can conclude that there must be only one reason to change it. ![]() The single responsibility principle (SRP) states that a software component (in general, a class) must have only one responsibility. ![]()
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