Recently we have founded a new Java User Group in my home town, the JUG Freiburg. If you happen to be in the area, we would be happy to welcome you in one of our meetings – either as an attendee or to give a talk yourself.

Logo of the JUG Freiburg

Logo JUG Freiburg

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As mentioned in my previous post, I added two important new features to ReduxFX 0.1. While the previous post focused on the ability to communicate with the outside world from ReduxFX application, this post focuses on the second new feature: the ability to write standard JavaFX components.

Concept of component architecture

The architecture of a ReduxFX component is very similar to a regular ReduxFX application that talks to the outside world via drivers

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Last week I released version 0.1 of ReduxFX, which added two important features to the library. Now ReduxFX has support for the development of UI-components and it is possible to communicate with external systems. In this post I will give a short introduction into the latter.

Concept of external communication with ReduxFX

The ReduxFX Updater sends commands to the Driver, which communicates with external components. Notifications are sent back via Actions.

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Image of Top 40 Java Blog Badge

Mike’s Blog was selected as one of the Top 40 Java Blogs by FeedSpot. I feel very honored to be part of that list. Please go ahead and check out the other featured blogs, there is a lot of great content.

The first part of this series gave an overview of the key concepts and listed some of the main advantages of using functional reactive programming techniques in UI development. Future articles we will focus on different components that are involved, starting today with the State component, a key ingredient of functional reactive UI programming.

MVC vs FRP Data Structures

In MVC we differentiate between domain model and UI state, in functional reactive UI programming everything is part of the State.

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React.js, Elm, Cycle.js, and other UI frameworks introduced a new way of building user interfaces. By applying principles from functional reactive programming to UI development, they even changed how we think about user interfaces. In no time, these approaches have simply smashed the seemingly inevitable dominance of MVC and its siblings (MVP, MVVM etc.). This article, which is the first in a series, will give a brief introduction into this new way of building UIs and list some of the advantages it has over traditional approaches. These factors are so strong, that in my opinion there is a good chance that we are right now witnessing the end of the MVC-era.

Graph showing the cyclic dependency between DOM Driver, ActionCreator, Updater, and View()

Concept of functional reactive UI development

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Refcard Cover

Hendrik and myself created a RefCard for JavaFX 8, which was published today. A big thanks goes to the people at Dzone, who made this happen, and to my colleagues at Canoo, who were also a big help. You can download the RefCard over at JavaFX 8 RefCard.




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Today I release an initial version of Čaj, a Java library that allows you to formulate expectations about your code in your tests.

Expectations formulated with Čaj are straightforward to read and simple to understand. Here are a few examples:

You can find out more on Čaj’s GitHub page.

I have uploaded a new version of the sample page for JavaFX in the browser, which demonstrates the functionality that was added lately: gradients, fonts, and mouse-events.

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Screenshot JavaFX in the browser

Screenshot JavaFX in the browser

Lately Carl Dea and I have started a new project to bring JavaFX 8 into the browser. Today I want to introduce the first two proof-of-concepts that we created to see if this idea is feasible at all.
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