In complex system development, we often encounter scenarios where we need to process collections of objects. These objects can be either independent individuals or combinations of other objects. In order to manage and operate these objects more efficiently, we can use the Composite Pattern. This article will introduce in depth the concept of the Composite Pattern, the difference from other similar patterns, the problems it solves, its application in actual development, precautions, and implementation examples in Golang. What is the Composite Pattern? The Composite Pattern…

1. Introduction Design patterns play a vital role in software development. They provide proven solutions to common design problems and improve the readability and maintainability of code. Design patterns help developers quickly find appropriate solutions when encountering complex problems, thus saving time and reducing errors. Facade Pattern is a structural design pattern whose main purpose is to provide a simple interface for complex subsystems, making it easier for users to interact with…

What is the Abstract Factory Pattern? The Abstract Factory Pattern is a creational design pattern that provides an interface for creating a series of related or interdependent objects without specifying their concrete classes. The Abstract Factory Pattern provides a consistent interface for clients to create different types of products. The structure of the Abstract Factory Pattern The Abstract Factory Pattern usually includes the following components: Abstract Factory Interface: defines the interface for creating products. Specific…

What is the Factory Method Pattern? The Factory Method Pattern is a creational design pattern that creates objects by defining an interface, but defers the specific implementation of the object to the subclass. This means that the Factory Method Pattern allows subclasses to decide which class to instantiate, making code expansion more flexible and easier to maintain. Compared with the Simple Factory Pattern, the Factory Method Pattern no longer relies on a single factory class, but implements object creation through an abstract factory interface. This…

What is the Simple Factory Pattern? The Simple Factory Pattern is a creational design pattern that uses a factory class to instantiate different types of objects. Based on the parameters passed in, the factory class decides which specific class to create. The Simple Factory Pattern is often used to reduce the client code's dependence on specific classes, ensuring that the code is easier to maintain and extend. In the Simple Factory Pattern, the factory class is responsible for the object creation logic, and the client does not need to worry about how to create the object, but only needs to...

Design Patterns is a summary of experience in software engineering, which provides solutions to common software design problems. Although design patterns themselves are not specific codes, they are some reusable design ideas and principles that can help developers write more flexible, maintainable and scalable codes. This blog will introduce the definition, meaning, classification and common examples of each type of design pattern in detail. By understanding these contents in depth, readers can understand how to use them in projects...