When working on the Reactive Streams specification, developers from the Spring Framework team needed a high-throughput data processing framework, especially for the Spring XD project, the goal of which was to simplify the development of big data applications. To fulfill that need, the Spring team initiated a new project. From the beginning, it was designed with support for asynchronous, non-blocking processing. The team called it Project Reactor. Essentially, Reactor version 1.x incorporated best practices for message processing, such as the Reactor Pattern, and functional and reactive programming styles.
The Reactor Pattern is a behavioral pattern that helps with asynchronous event handling and synchronous processing. ...
