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In earlier versions of MyBatis, developers could invoke database operations directly through the DefaultSqlSession's selectOne() method using the StatementID defined in Mapper XML files. This approach, while functional, presented significant maintainability challenges. The StatementID was specified as a hardcoded string constant, making refacto ...

Factory Patterns Design patterns in software engineering represent proven solutions to common design problems. They enhance code reusability, readability, and maintainability by providing standardized approaches to structuring code. Simple Factory Pattern The simple factory pattern encapsulates object creation logic within a dedicated factory c ...

Many Java developers encounter reflection during their learning journey but often leave with only a vague understanding—or skip it entirely. This article demystifies what reflection is, how it works under the hood, and where it’s practically applied in real-world systems. What Is Reflection? According to Wikipedia, reflective programming refers ...

JDK dynamic proxies provide a mechanism to create proxy instances that implement specified interfaces at runtime. Here's a basic implementation: import java.lang.reflect.*; interface GreetingService { void greet(); } class GreetingServiceImpl implements GreetingService { public void greet() { System.out.println("Hello fr ...

The proxy pattern provides a surrogate or placeholder for another object to control access to it. It is useful when a client object cannot or should not directly reference the target object, and the proxy acts as an intermediary. The core idea is to add additional behavior around the target's logic without modifying the target class itself. For ...