Vaadin Blog
Is your Grid too slow? You are probably using the wrong renderer
If you are building a business web application with Vaadin, chances are that you are using Vaadin Grid. There are multiple ways to create columns with Grid: some are more flexible than others. But what you might not know is how they differ in terms of performance on the client side. Why Client-Side ...
Vaadin Pro available for students
The best way to learn to code is by coding. Vaadin is open source and free to use for any kind of web applications. In addition to this, we offer professional web developers Vaadin Pro, which adds more tools and components to increase productivity. We don’t want the price to prevent you from using ...
The Legendary Book of Vaadin is Back
I'm glad to announce that the new edition of the Book of Vaadin is now available and you can download it for free now at https://vaadin.com/book. Hard Copy and E-book This new edition of the book features Vaadin 14. There are two versions of the book – a hard copy version for carrying it around and ...
Top 14 new features in Vaadin 14
Vaadin 14 is the latest Long-term support (LTS) version of the Java web framework. Since the previous LTS version (Vaadin 10), we have released a lot of great features, like CDI support, dynamic route registration, Material theme, keyboard shortcuts, and 18 new components, to name a few. Assuming ...
Technical Erosion and Java Swing
In March 2018 Oracle released its Java Client Roadmap update. The document was significant because it acknowledged the creeping obsolescence affecting all desktop-oriented Java technologies including Swing, Applets, Web Start, and JavaFX. The roadmap update mentions the shift to mobile-first and ...
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Migrating Java enterprise apps to Kotlin
Kotlin managed to show a substantial presence in the community, as well as steady growth compared to other modern programming languages. This tutorial is not going to be yet another Kotlin 101, it’s not exclusive for Android developers, and it’s not an opinionated post comparing, e.g. Kotlin and ...
How to create a Docker container for a Vaadin Java app
In this tutorial you learn to deploy your Java-based Vaadin application in a Docker container and run it locally. Configuring Docker is a complex topic that has, by now, filled many articles and books. This tutorial gives you a short and simple example of how to start a Vaadin application in a ...
Session Replication in the World of Vaadin
We often get questions about how to use session replication together with Vaadin. Many of Vaadin's unique capabilities are based on the way the entire UI state is stored in a server-side user session. For this reason, our recommendation is to rely on session replication as little as possible. ...
Java Bean Validation: A Comprehensive Introduction and Best Practices
Jakarta Bean Validation (previously known as Java Bean Validation) allows you to define data validations using annotations in your Java Beans. Its motto is "constrain once, validate everywhere". Available implementations Jakarta Bean Validation is an API defined by the JSR 380. Currently, there are ...