Master Reactive Programming in Java: Complete Guide to Building High-Performance Non-Blocking Applications with Reactor

Reactive programming is a programming paradigm that is gaining popularity in the Java community. Reactive programming enables the development of asynchronous, non-blocking, and event-driven applications. Reactive programming can be implemented in Java using frameworks such as Reactor, RxJava, and Akka.

In this article, we will explore reactive programming in Java using the Reactor framework.

What is Reactor?

Reactor is a Java library for reactive programming. Reactor provides two main abstractions: Flux and Mono. Flux represents a stream of data that can have multiple elements, while Mono represents a stream of data that can have zero or one element.

Reactor provides operators that can be used to transform, combine, and filter Flux and Mono streams. Reactor also provides a set of schedulers that can be used to specify the execution context for operators.

Creating a Flux Stream:

To create a Flux stream, we can use the Flux.create() method. The create() method takes a FluxSink object as an argument. The FluxSink object is used to emit elements to the stream.