This article explores the pain points of traditional Java web development, demonstrates how design patterns and JDK dynamic proxies introduce Aspect‑Oriented Programming concepts, explains Spring AOP's relationship to AOP, and compares JDK and CGLib proxy implementations for clean, reusable code.
This article explains Java's reflection mechanism, outlines its capabilities such as runtime class inspection, object instantiation, method invocation, and dynamic proxy creation, and provides numerous code examples demonstrating how to retrieve class information, manipulate fields, invoke methods, and apply reflection in patterns like factories.
This article explains the Proxy design pattern in Java, covering static proxy, dynamic JDK proxy, and Cglib subclass proxy with detailed code examples and discussion of their advantages, limitations, and typical usage in AOP frameworks.
This article explains Java's dynamic proxy mechanism, covering the roles of InvocationHandler and Proxy classes, their APIs, the parameters required for creating proxy instances, and a complete example that demonstrates how method calls are intercepted and delegated through a custom handler.
This article explains the fundamentals of Java dynamic proxy, demonstrates how to use Proxy and InvocationHandler to eliminate repetitive null‑checks in MVP presenters and to create flexible, decoupled module interactions, providing complete code examples and practical insights.
This article introduces Spring's BeanPostProcessor, explains its two callback methods, and demonstrates through a real‑world A/B testing scenario how custom annotations and a post‑processor can inject dynamic proxies to simplify routing logic and improve code maintainability.
This article explains the concept of the Proxy design pattern, demonstrates how to implement static and dynamic proxies in Java with complete source code, and analyzes the advantages, limitations, and internal workings of Java's runtime-generated proxy classes.
This article explains Kotlin's class extension functions, highlights pitfalls of static resolution, demonstrates smart casts, describes companion objects and singleton patterns, and shows how to implement dynamic proxies and pseudo‑multiple inheritance with practical code examples for Android development.
This article explains how to measure the execution time of Java methods by first using an intrusive approach that embeds timing code directly in each method, then introduces a cleaner solution based on Java's dynamic proxy mechanism to separate performance monitoring from business logic.
This article explains how to perform code‑level performance measurement in Java services, compares the traditional intrusive approach with a cleaner solution using JDK dynamic proxies, and demonstrates how to decouple timing logic from business code.
This article explains how large‑scale internet companies replace local service calls with remote procedure calls (RPC), covering Java dynamic proxies, message encoding, serialization, asynchronous response handling, and Zookeeper‑based service registration and discovery to achieve transparent, scalable service communication.
