One of the nice discoveries I made last week during CodeOne 2018 was Eclipse Che. This is a browser based polyglot IDE that runs in a Docker container – either locally, on a central server or in the cloud, on a stand alone Docker engine, a Kubernetes or an OpenShift […]
browser
When Screen Scraping became API calling – Gathering Oracle OpenWorld 2017 Session Catalog with Node
A dataset with all sessions of the upcoming Oracle OpenWorld 2017 conference is nice to have – for experiments and demonstrations with many technologies. The session catalog is exposed at a website – https://events.rainfocus.com/catalog/oracle/oow17/catalogoow17 With searching, filtering and scrolling, all available sessions can be inspected. If data is available in […]
Node.js application using SSE (Server Sent Events) to push updates (read from Kafka Topic) to simple HTML client application
This article describes a simple Node.js application that uses Server Sent Events (SSE) technology to push updates to a simple HTML client, served through the Express framework. The updates originate from messages consumed from a Kafka Topic. Although the approach outlined in this article stands on its own, and does […]
Executing command line scripts from the Oracle Forms client – using WebUtil
Our challenge: we are building the new ERP system – a pure HTML5 browser based application in Oracle ADF. This application replaces the current Oracle Forms based application. For more than a year and a half – the users will have a hybrid situation on their hands: some of their […]
Oracle’s portfolio for Custom Application Development – snapshot taken at Oracle OpenWorld 2016
Custom applications with a user interface can be categorized along various dimensions. Is the user interface a front end for a system of record or a system of change or innovation? What about the users: trained power users or very occasional visitors? What is the purpose of the system, such […]
Creating (near) native mobile web app (aka progressive web app) for iOS with Ionic 2
It has been a long standing ambition of mine to create an app that I could run on my iPhone. This weekend I finally realized that ambition – in what turned out to be a surprisingly simple fashion. Using various tutorials, tips from colleagues and the Ionic 2 framework, I […]
Force Text to UpperCase in RichInputText as the user is typing (make sure the cursor stays in one place)
The challenge is simple: users of an ADF Faces web application are only allowed to enter uppercase characters into a field. We want to help them by turning any lowercase character they type into its uppercase equivalent – as they are typing. And we of course need to make sure […]
Java Web Application sending JSON messages through WebSocket to HTML5 browser application for real time push
This article describes a Java EE 7 web application that exposes a REST service that handles HTTP POST requests with JSON payload. Any message received is sent through a Web Socket to the web socket (server) endpoint that is published by a Java Class deployed as part of the web […]
IETester: Develop and test your site for multiple versions of Internet Explorer
When developing or testing your web application, you often have to support different browsers and versions. On Window machines testing for different versions of Firefox, Opera and Chrome is not a real problem as these browsers all allow you to install different versions on one machine. Only Internet Explorer (IE) […]
Google goes into browsers too – challenging Internet Explorer and Firefox and launching the SaaS VM to really challenge the fat client
Normally important news on IT subjects comes to me via IT media – blogs, discussion forums, newsletters and rumors & gossip. This morning, my newspaper carried the story on Google’s browser initiative: Google Chrome. A web-browser – “that aims to push forward Internet innovation and elevate user expectations”. Just what […]