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Overview Aspect-Oriented Programming enables modular handling of cross-cutting concerns. This guide demonstrates implementing automatic encryption and decryption for controller layer data using Spring Boot AOP, allowing business logic to remain clean while security concerns are handled transparently. Core Concepts AOP terminology includes: Asp ...

Understanding Spring AOP Proxies When working with Spring AOP, it's crucial to understand that only method calls through Spring-managed beans will trigger aspect advice. Direct this calls bypass the proxy mechanism entirely, meaning aspects won't intercept them. This happens because service objects are injected as Spring proxies, which are sepa ...

Understanding the Consistency Challenge In high-concurrency environments, siumltaneous database mutations create temporal windows where Redis caches diverge from persistent storage. Consider two concurrent update threads: Thread Alpha: Updates database record → Updates cache entry Thread Beta: Updates database record → Updates cache entry Exe ...

This walkthrough demonstrates how to recreate the essential parts of the Spring ecosystem in a compact, learning-oriented codebase named Summer Framework. The goal is not feature parity but a clear, step-by-step construction of an IoC container, AOP engine, JDBC helper, declarative transactions, Web MVC, and a Spring-Boot-style launcher—each tr ...

Login Module After completing all the previous modules, we continue with login validation, global exception handling, transaction management, and AOP. A simple login checks the database for the employee. This can be implemented using a three-layer architecture. Controller Layer Create a LoginController class dedicated to handling login requests ...

Professional kitchens prioritize efficiency through meticulous preparation and optimized layout—concepts mirrored in software architecture. Just as mise en place ensures all tools and ingredients are ready, a well-structured codebase minimizes redundancy and maximizes maintainability. In this context, Aspect-Oriented Programming (AOP) emerges a ...

Implementing Multiple Data Sources in Spring Boot with AOP In this article, we'll explore how to configure a Spring Boot application with multiple database connections using Aspect-Oriented Programming (AOP). We'll use HikariCP as the connection pool, MybatisPlus as the ORM framework, and demonstrate connections to both MySQL and SQL Server dat ...

Transaction management belongs logically in the service layer. Spring supports two primary approaches: Programmatic transaction management (for advanced use cases) Declarative transaction management (recommended for most applications) Declarative transactions can be implemented either via XML configuration or annotations — the latter being th ...

The @Component annotation serves as a generic marker for any class requiring Spring container management. Applied to POJOs, service layers, or persistence entities, it triggers automatic instantiation and registration in the IoC container. Conversely, @Bean declares a managed object within configuration classes. Placed on methods, it registers ...

Aspect-Oriented Programming (AOP) modularizes cross-cutting concerns—such as auditing, security, and transaction management—that traditionally scatter across application layers. By encapsulating these behaviors into reusable aspects, AOP reduces coupling between business logic and infrastructure code. Spring implements AOP through proxy-based i ...