Unlocking Software Design Patterns: Complete Series Outline & Roadmap

Origin

After previous series on large‑site architecture, the author decided to compile knowledge on code design and architecture into a series of articles on design patterns, balancing writing with work commitments.

Background

Design patterns capture proven solutions for code structure and design; mastering them improves code quality and architectural skill. This series will illustrate common patterns with JDK source, popular frameworks, and real‑world scenarios.

Article Format

Each article follows a consistent structure and includes revision records for easy reference.

Application scenarios (life problems, business problems)

Solution overview (traditional approach, design pattern)

Pattern explanation (definition, UML diagram, element description, reference implementation)

Practical usage (framework or SDK source, business case)

Pattern comparison (advantages/disadvantages, related pattern differences)

Series Outline

1. Object‑Oriented Basics

Topics: objects, classes, interfaces, abstraction, inheritance, encapsulation, polymorphism, relationships (association, aggregation, composition), high cohesion & low coupling, UML class diagram basics.

2. Object‑Oriented Design Principles

Covers code abstraction principles, GRASP, SOLID, and SOC.

3–18. Individual Design Patterns

Subsequent articles will cover pattern classification, one‑sentence summaries, and detailed discussions of Singleton, Factory, Facade, Adapter, Proxy, Decorator, Strategy, Observer, Template Method, Chain of Responsibility, Builder, Composite, Bridge, Command, State, Mediator, etc.

Examples

All examples are written in Java, using frameworks such as Spring and MyBatis, though the concepts apply to any language.

Feedback and sharing are welcomed.