advanced~2.5h
Aspect-Oriented Programming (AOP)
@Transactional, @Async, and @PreAuthorize all secretly work the same way underneath. This module is that shared mechanism itself — and how to write your own cross-cutting behavior using it directly.
Learning objectives
- Beginner: Explain what a 'cross-cutting concern' is and name three examples already seen elsewhere in this course.
- Intermediate: Write a custom @Aspect that logs the execution time of any method annotated with a custom annotation.
- Advanced: Explain the difference between @Before, @After, and @Around advice, and why only @Around can change a method's return value.
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Aspect-Oriented Programming (AOP)