It’s very common to refer to some Spring features as “magic.” How else could you add functionality like caching at the method level with nothing but a single annotation? Magic!✨ ✨ ✨
Over time, I’ve come to learn the names of some of the magic ✨ that facilitates the amazing features of Spring that drive up the productivity of engineers and light a fire under the velocity of development teams.
JDK Dynamic Proxies and CGLIB.
Proxies in Spring are an implementation of the Proxy design pattern and help facilitate the paradigm of Aspect-Oriented Programming.
Benefits of Proxies ➕
Spring WebFlux provides reactive, async, non-blocking programming support for web applications in an annotated Controller format similar to SpringMVC.
This approach is similar to how Node.js uses an async, non-blocking model which helps make it more scalable. Spring WebFlux uses a similar model but with multiple event loops.
Spring WebFlux moves away from the thread-per-request blocking model in traditional SpringMVC(with Tomcat by default) and moves towards a multi-EventLoop, async, non-blocking(with Netty by default) paradigm with back-pressure that is more scalable and efficient than traditional blocking code.
For a more general introduction to Reactive Functional Programing with Java check out: https://medium.com/javarevisited/intro-to-reactive-functional-programming-d49e00365847
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