Understanding object-oriented design principles is crucial for Salesforce developers aiming to create maintainable and scalable code. These principles guide developers in making decisions that result in robust applications. Here’s a breakdown of 5 essential object-oriented design principles every Salesforce professional should master:
1. Single Responsibility Principle (SRP)
– Ensure that a class has only one reason to change, meaning it should only have one job or responsibility.
– Simplifies the debugging process since each class has a clear purpose.
2. Open-Closed Principle (OCP)
– Classes should be open for extension but closed for modification.
– Allows for adding new functionalities without altering existing code, reducing the risk of bugs.
3. Liskov Substitution Principle (LSP)
– Subtypes must be substitutable for their base types without altering the correctness of the program.
– Ensures that a derived class does not affect the behavior and expectations of the base class.
4. Interface Segregation Principle (ISP)
– Prefer many client-specific interfaces to one general-purpose interface.
– Promotes the development of concise interfaces that are not overloaded with methods that are not relevant to the client.
5. Dependency Inversion Principle (DIP)
– High-level modules should not depend on low-level modules; both should depend on abstractions.
– Abstractions should not depend on details; details should depend on abstractions.
– Encourages the use of interfaces to decouple classes and improve modularity and testing ease.
Mastering these principles allows you to write clean, organized, and high-quality Salesforce code that is easier to read, test, and maintain. It’s a significant step towards becoming an advanced Salesforce developer.
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Source from salesforceben(dot)com