My first NodeJS service

Maarten Smeets

Microservices implemented in JavaScript running on NodeJS are becoming quite popular lately. In order to gain some experience with this, I created a little in memory NodeJS cache service. Of course statefulness complicates scalability, but if I would also have implemented a persistent store to avoid this, the scope of […]

Deploying an Oracle JET application to Application Container Cloud and running on Node.js

Lucas Jellema 2

An article from the Oracle A-Team (http://www.ateam-oracle.com/oracle-jet-with-nodejs/) describes how to run a sample Oracle JET application on a Node.js server. I have followed the steps in that article, ran the JET application locally and then configured the application for deployment to the Oracle Application Container Cloud. Subsequently, I created a […]

Reflections after Oracle OpenWorld 2015 – PaaS Foundation (WebLogic, Coherence, JCS and Application Container Cloud Service)

Lucas Jellema

The foundation for most of the Oracle Public Cloud Platform services is the Java Cloud Service (JCS) that itself is powered by WebLogic Server. The same WebLogic that Oracle customers use as underpinning for their middleware platforms and business applications, either on traditional infrastructure, on the Exalogic engineered system or […]

Declarative Web User Interface Development by the Citizen Developer – Introducing the Oracle Application Builder Cloud Service

Lucas Jellema

The Citizen Developer – also known as the Line of Business user – is the non-technical but still somewhat IT-savvy member of a business department. She may configure web surveys, create macros in Excel spreadsheets, perform complex data analysis or maintain a departmental web site. She does things that touch […]

Donderdag 16 april/Thursday April 16th – Speedy Joe’s – Using asynchronous interaction in Java EE to turn the world’s slowest restaurant into a super performant place

Lucas Jellema

De Java SIG (Special Interest Group) van AMIS organiseert op donderdag 16 april een bijeenkomst (publiek toegankelijk) over asynchrone interacties in Java EE (web) applicaties. Synchrone interacties in de echte wereld en in IT applicaties kunnen de boel behoorlijk ophouden. Synchroon betekent wachten – en resources vasthouden. Dat kan een […]

Stand-alone Java Client for jWebSocket Server – communicating from Java Client to Web Clients and vice versa over WebSockets

Lucas Jellema

In a previous article, I have discussed the open source jWebSocket Server and a simple installation and configuration (https://technology.amis.nl/blog/14940/first-steps-with-jwebsocket-open-source-java-framework-for-websockets-installation-and-running-samples). Subsequently, I have shown the implementation of a web client for a synchronized Slideshow application, where WebSocket communication is used to perform Client 2 Client push (https://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server). In a third article […]

Implementing a Java Server Side component for jWebSocket Server for WebSocket interaction with Web Clients

Lucas Jellema 4

In a previous post – https://technology.amis.nl/blog/14949/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-jwebsocket-server-the-open-source-java-websocket-server – I discussed the implementation of the synchronized slideshow application using Web (HTML/JavaScript) clients and jWebSocket as websocket server. In an earlier article, I described the same for the Kaazing WebSocket server – https://technology.amis.nl/blog/14777/push-based-synchronized-slideshow-web-application-implemented-using-websockets-and-kaazing-websocket-gateway – and both stories are (fortunately) fairly similar. In the […]

Push-based synchronized slideshow web application – implemented using WebSockets and jWebSocket server – the open source Java WebSocket server

Lucas Jellema 2

In a recent article, I have introduced jWebSocket – an open source Java based server for WebSocket communication: https://technology.amis.nl/blog/14940/first-steps-with-jwebsocket-open-source-java-framework-for-websockets-installation-and-running-samples. In this article, I have described how to download and install the jWebSocket server and how to get going with running some of the distributed samples. In another recent article, I […]

Push based synchronized Slideshow demo application implemented using CometD and jQuery running on Tomcat

Lucas Jellema 2

In a string of recent articles, I have discussed downloading, installing and running demos for a number of different tools, frameworks and libraries that support push-style (web) applications in one way or another. I have looked into ‘classic’ comet with Grizzly, Atmosphere and CometD as well as ADF Active Data […]

Push-based synchronized slideshow web application – implemented using WebSockets and Kaazing WebSocket Gateway

Lucas Jellema 9

In the last few articles, I have discussed downloading, installing and running demos for a number of different tools, frameworks and libraries that support push-style (web) applications in one way or another. I have looked into ‘classic’ comet with Grizzly, Atmosphere and CometD as well as ADF Active Data Service […]

Leveraging HTML 5 Navigator API to show the browser's current location on an ADF Faces 11gR2 Thematic Map component

Lucas Jellema

This article demonstrates how, through a bit of JavaScript interacting with the HTML 5 Navigator API, some more JavaScript using the ADF Faces Rich Components API and the ADF Faces 11gR2 Thematic Map component, it becomes quite easy to not only learn about the end user’s physical location but to […]

Using asynchronous mechanisms in Java and JavaScript for improving the user experience

Lucas Jellema

  In this article, we will continue a discussion on asynchronous processing started in a previous article that introduced asynchronous and parallel processing Java using Executors, Futures, Callable Objects and the underlying thread model in Java 5 and 6. While a stand alone Java application – without UI – is […]