Reactive for the impatient

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Recibimos la visita de otro JUG leader, en esta ocasión Mary Grygleski desde Chicago Java Users Group (CJUG). Con una amplia experiencia trabajando en sistemas reactivos, nos hablará de la construcción de sistemas reactivos con Java.

## About this talk.

As Java is an object-oriented language that inherently supports the imperative programming style, asynchronicity presents a challenge that can turn the code into nightmare. One way to deal with the complexity of asynchronicity is to introduce reactivity onto the coding level (reactive programming), and/or to handle it on the design and architecture level (reactive systems design).

This talk presents to the audience a few of the major Java-based reactive frameworks and toolkits in the market today, such as RxJava, Spring Reactor, Akka, and Vet.x. It will start by going over the basic tenets of reactive systems, and some examples of the problems that these systems aim to solve. It will discuss the 2 most commonly used Java frameworks for implementing reactive coding - RxJava and Spring Reactor, and will show some code samples. It will then bring the audience to the next level of "reactivity' by introducing 2 reactive frameworks - Akka and Vert.x, which are usually used for implementing reactive microservices. It will draw some comparisons between these 2 frameworks and cite some real-life examples of their usages.

The takeaways for the audience will be an understanding of the key differences between reactive programming versus reactive systems, and the strength and weaknesses of each of the surveyed frameworks.

## About the speaker: Mary Grygleski

Mary is currently a Java Developer Advocate for IBM's Digital Business Group, specializing in Reactive Java systems. She has been riding the software tech waves since 1989, starting with Unix and C, then set sail for Java, open source, and web in the new Millennium, and now venturing into reactive, mobile, and the DevOps space. In her previous incarnations, she worked for several technology product companies in the Route 128 Boston Technology Corridor as well the San Francisco Bay Area. She now resides in the Greater Chicago area, and is an Executive Board member and the Director of Meetings for the Chicago Java Users Group (CJUG). Mary continues to be amazed by how software innovations can dramatically transform our lives. She can't wait to see what the next tech wave will be like.