Tag: Vaadin-flow
Introduction to load testing with Apache JMeter
Load testing allows you to simulate multiple users interacting with your application. This allows you to experiment with a real-world load on your application and understand its behavior under different levels of stress. In this article, I'll show you, step by step, how to run load tests on a ...
Re-introducing OSGi support for npm-based Flow projects
Vaadin has been a popular UI technology for OSGi-based Java solutions for years. Many OSGi users are still on Vaadin 7 or 8. Last year their migrations almost stalled, as Vaadin 14 only supported OSGi in the “compatibility mode". Compatibility mode uses the deprecated Bower + WebJars-based solution ...
Vaadin meets Vert.x
Vaadin server-side applications usually run in a servlet container, such as Jetty, Tomcat, or Undertow. However, Vaadin is not limited to these environments. The Vaadin building blocks are wisely designed on top of abstractions—VaadinRequest, VaadinResponse, VaadinService, VaadinSession, and ...
Vaadin 18 brings enhancements for Fusion and Flow
Today we released Vaadin 18. It contains new component features and enhancements for Fusion and Flow. New and enhanced components Avatar and AvatarGroup The new Avatar and AvatarGroup components display the user’s avatar image or their initials in a colored circle. Additionally, you can create a ...
Introducing Vaadin Flow and Fusion
We received a lot of feedback from our community regarding the TypeScript view support we added in Vaadin 15. Many of you were excited about the new capabilities it offers for Vaadin apps. But, there was also some confusion about this change. In particular, many in our community asked: "How does ...
Vaadin Key Concepts
This document is meant for developers who are new to Vaadin and want to get up to speed quickly. It gives you a quick overview of the core concepts and provides links to relevant documentation for further reading. It can also be used as a quick reference while developing Vaadin apps. If you don’t ...
Introduction to Java Bean Validation
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 ...
Vaadin 10 learning resources
Vaadin 10 was recently released, and it’s been received with great enthusiasm. By the time of writing this, there are over 40 components available in Vaadin Directory that support Vaadin 10. We have had a webinar and an introduction video about Vaadin 10, as well. And although the documentation ...
Resposive Toolbar in Vaadin Flow
This article is intended for Java developers that aren’t too familiar with CSS. We’ll be writing a series of articles to try and help make your application a bit more responsive across different sized viewports. Let’s start with something simple: a responsive toolbar. Toolbars typically house a lot ...
