Tagged articles

112 articles

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Jul 14, 2020 · Backend Development

Applying the Responsibility Tree Pattern for Versioned API Refactoring

To refactor a versioned API plagued by nested guards, the article proposes the Responsibility Tree pattern—a hybrid of Chain of Responsibility and Strategy—that routes requests through hierarchical handlers based on parameters, yielding cleaner code, easier debugging, and scalable extension for future versions.

API VersioningChain of ResponsibilityDesign Patterns

0 likes · 12 min read

Applying the Responsibility Tree Pattern for Versioned API Refactoring

37 Interactive Technology Team

Jun 5, 2020 · Backend Development

How to Build a Reusable Rule Engine in PHP with Strategy Pattern and Reflection

This article explains how to replace repetitive if‑else rule checks in PHP with a generic rule module using the Strategy design pattern and reflection, providing step‑by‑step code examples, architectural diagrams, and a clear path to extend rules without modifying client code.

Backend DevelopmentDesign PatternsPHP

0 likes · 10 min read

How to Build a Reusable Rule Engine in PHP with Strategy Pattern and Reflection

Meituan Technology Team

Mar 19, 2020 · Backend Development

Applying Design Patterns and Domain‑Driven Design in Meituan Takeaway Marketing System

The Meituan Takeaway Marketing team shows how combining domain‑driven design with classic patterns such as Factory Method, Strategy, State and Responsibility Chain creates an extensible, maintainable reward system that adapts to rapidly changing business rules while keeping the domain model clean and SOLID‑compliant.

Design PatternsDomain‑Driven DesignFactory Method

0 likes · 25 min read

Applying Design Patterns and Domain‑Driven Design in Meituan Takeaway Marketing System

58 Tech

Feb 14, 2020 · Backend Development

Finite State Machine Based Advertisement Status Management in the LEGO Advertising Platform

This article systematically introduces a finite state machine (FSM) based solution for managing advertisement status in the LEGO advertising platform, detailing the background challenges, problem review, two design alternatives (strategy‑factory pattern and configuration‑driven approach), their advantages, disadvantages, and a final recommendation.

AdvertisementConfiguration ManagementFSM

0 likes · 11 min read

Finite State Machine Based Advertisement Status Management in the LEGO Advertising Platform

Programmer DD

Jan 11, 2020 · Fundamentals

Mastering the Strategy Pattern: When and How to Use It in Java

This article explains the Strategy design pattern, its definition, roles, UML diagram, Java code examples, real‑world applications such as payment integration and compression, and provides guidance on when to use it, its advantages, drawbacks, and how to simplify it with Java 8 lambdas.

Design PatternsJavaLambda

0 likes · 16 min read

Mastering the Strategy Pattern: When and How to Use It in Java

Java Backend Technology

Dec 16, 2019 · Backend Development

How Enums, Factory & Strategy Patterns Eliminate Complex if/else in Java Role Management

This article shows how to replace tangled if/else permission checks in a Java backend by using enums, a factory class, and the strategy pattern, resulting in cleaner, more extensible code that follows the open‑closed principle.

Factory PatternJavaStrategy Pattern

0 likes · 6 min read

How Enums, Factory & Strategy Patterns Eliminate Complex if/else in Java Role Management

Java Captain

Oct 31, 2019 · Backend Development

Eliminating Complex if‑else Logic with Strategy and Factory Patterns in Spring

This article explains how to replace tangled if‑else statements in business code with the Strategy and Factory design patterns, demonstrates their implementation in Java and Spring, and shows how to register strategy beans to improve readability and maintainability.

Design PatternsFactory PatternJava

0 likes · 11 min read

Eliminating Complex if‑else Logic with Strategy and Factory Patterns in Spring

Full-Stack Internet Architecture

Oct 30, 2019 · Backend Development

Eliminating Complex if‑else Logic with Strategy and Factory Patterns in a Spring‑Based Java Application

This article explains how excessive if‑else statements in business code hurt readability and maintainability, and demonstrates how to replace them with the Strategy and Factory design patterns integrated with Spring, using a food‑delivery discount example and complete Java code snippets.

Design PatternsFactory PatternJava

0 likes · 12 min read

Eliminating Complex if‑else Logic with Strategy and Factory Patterns in a Spring‑Based Java Application

macrozheng

Oct 29, 2019 · Backend Development

Eliminate Complex if‑else with Strategy & Factory Patterns in Spring

This article explains how to replace tangled if‑else logic in business code with the Strategy and Factory design patterns, integrates them into a Spring application, and demonstrates the resulting improvements in readability, maintainability, and extensibility for discount calculations.

Factory PatternJavaStrategy Pattern

0 likes · 13 min read

Eliminate Complex if‑else with Strategy & Factory Patterns in Spring

Programmer DD

May 28, 2019 · Backend Development

Mastering the Strategy Pattern in Spring: Real-World Java Examples

This article explains how to apply the Strategy pattern within a Spring project, covering background, learning objectives, step‑by‑step code examples for query services A, B, and C, the three‑part invocation process, and both list‑based and map‑based configurations.

Backend DevelopmentDesign PatternsJava

0 likes · 3 min read

Mastering the Strategy Pattern in Spring: Real-World Java Examples

Java Backend Technology

Apr 20, 2019 · Backend Development

Simplify Order Processing with Strategy Pattern and Custom Annotations in Java

This article demonstrates how to replace cumbersome if‑else logic in an order‑processing system with a concise Strategy pattern implementation, using a custom @HandlerType annotation and Spring bean registration to make adding new order types effortless and maintainable.

Backend DevelopmentCustom AnnotationDesign Patterns

0 likes · 4 min read

Simplify Order Processing with Strategy Pattern and Custom Annotations in Java

Java Backend Technology

Sep 22, 2018 · Fundamentals

Mastering the Strategy Pattern in Spring: A Step-by-Step Guide

This tutorial walks you through the background, learning goals, and detailed Spring-based code examples of the Strategy pattern, including list and map implementations, configuration files, and a complete run‑time demonstration for Java developers.

Backend DevelopmentDesign PatternsJava

0 likes · 3 min read

Mastering the Strategy Pattern in Spring: A Step-by-Step Guide