Author: Ivan Furnadjiev

Container Dependency Injection (CDI) allows us to inject one or more components (or services) into a dependent object. Usually it makes the code cleaner, as it separates the creation of the injected objects from the component's own behavior. Recently I've made a simple RAP standalone application to play together with CDI without problems. First, let's create our RAP entry point class: [raw] public class HelloWorld extends AbstractEntryPoint...

13 Feb 2015

RAP 3.0 M5: Clipping Support, KTable Port in RAP

in EclipseSource News, Planet Eclipse

The new RAP 3.0 milestone M5 is out and has been available for download since February 6, 2015. Together with several bug fixes, M5 introduces clipping support. Clipping allows you to constrain changes to a selected part of the canvas. Once you select a clipping region, all future drawing operations will be limited to it. The canvas above is filled with rectangles and clipped to a custom...

07 Oct 2013

The evolution of RAP’s FileDialog

The ability to upload files is key functionality for every Web application and, naturally RAP can upload files too. In the beginning ( RAP 1.2 ), this functionality was provided by a custom widget called Upload. This widget was based on an early version of the Qooxdoo UploadWidget contribution project. In RAP 1.4 the old Upload widget was deprecated and replaced by a new FileUpload RWT...

05 Dec 2017

Drawing Complex Shapes in RAP

in EclipseSource News, Editors choice, Planet Eclipse

In RAP 1.3, we added support for GC (Graphics Context) to the canvas widget. It allows you to draw simple shapes such as lines, squares, ovals or arcs, and fill them with solid colors or gradients. Most of the time, this will suffice your needs, but sometimes you may also want to draw more complex shapes such as quadratic or bezier curves. Luckily, RAP 2.1 is just around...

26 Jan 2013

Getting started with RAP

For beginner developers is very important to have a fast start in a new technology. RAP Tools provide three PDE templates from its version 1.0, but all of them are based on the Eclipse workbench model and its extension points. Starting from RAP version 1.5, it's possible to create a lightweight OSGi applications using RAP’s widget toolkit. That's why we decided to replace two of...

17 Oct 2012

JavaScriptExecutor is now API

in EclipseSource News, Planet Eclipse

In the second milestone of RAP v2.0 we introduced a new Client API. It allows as to distinguish between different clients (web client, native android client...

12 Sep 2012

Making your images available using markup

In RAP v1.5 we introduced markup support for several widgets. One of the most frequently asked questions about markup support is: "Why are my images not displaying?". In this blog post I will give you a step-by-step guide on how to make your images available using markup. Save your images in your bundle source folder. In this example the images are located in "src/resources". Register your image...

08 Aug 2012

To catch or not to catch… Throwable

Many developers still catch Throwable in their try/catch statements. Is this a good idea? I don't think so. As all of you know, Throwable is a generic superclass for all exception and errors in Java. As exceptions are meant to be caught, errors in most cases are not. If we take a look at the Error class JavaDoc we will read the following: An Error is...

29 Jun 2012

Nebula Grid widget on RAP