Mastering Reactive Programming with Project Reactor in Java
1. Introduction Reactive Programming is an asynchronous programming paradigm focused on handling data streams and event-driven applications. It enables non-blocking execution, efficient resource utilization, and responsiveness, making it ideal for modern applications that require scalability and real-time processing. Java provides the java.util.concurrent package for handling concurrency, but it lacks a standard for asynchronous, event-driven programming. To address this, the Reactive Streams Specification was introduced, and libraries like Project Reactor were built on top of it to enable reactive programming. 2. Reactive Streams Specification The Reactive Streams Specification defines a standard for asynchronous stream processing with backpressure. It consists of four key interfaces: Publisher : Emits a stream of data to its subscribers. Subscriber : Receives data and handles it accordingly. Subscription : Manages the lifecycle between the publisher and subscriber. Processor...