Author: Lucas Jellema
My objective: create a Node application to download sources from a repository on GitHub. I want to use this application to read a simple package.json-like file (that describes which …
The challenge I describe in this article is quite specific. I have a Windows laptop. I have access to a remote Kubernetes cluster (on Oracle Cloud Infrastructure). I want …
This article is not some sophisticated treatise on Oracle JET fundamentals.It is merely a collection of challenges I had to deal with and found solutions for – that work, …
The essential message of this article is the automation for Oracle JET application of the flow from source code commit to a running application on Oracle Application Container Cloud, …
For one of our current projects I have done some explorations into the combination of ADF (and WebCenter Portal in our specific case) with JET. Our customer has existing …
It is nice – to push code to a branch in a Git repository and after a little while find the freshly built application up and running in the …
For one of our current projects I have done some explorations into the combination of ADF (and WebCenter Portal in our specific case) with JET. Our customer has existing …
Even for organizations with strong roots in relational databases such as Oracle RDBMS, there may be valuable opportunities for leveraging additional data sources, for example to support special (search) …
Even though ADF does not always play nice with guests, it is becoming increasingly common to have ADF applications – pure ADF or WebCenter Portal – that are the …
To select a country (or any other geographical entity), we can offer our end users a dropdown list, a list of values in a popup window, an auto suggest …
In a recent article I discussed how the open source geo, GIS and map library OpenLayers can be used in an Oracle JET application. That article shows how countries …
Oracle JET is a toolkit for the creation of rich web applications. Many applications will have location-related aspects. Such applications can benefit from advanced map capabilities – for presenting …
The Java Servlet specification does not include handling a PATCH request. That means that class javax.servlet.http.HttpServlet does not have a doPatch() method, unlike doGet, doPost, doPut etc. That does …
Oracle announced a managed Kubernetes Cloud service during Oracle OpenWorld 2017. This week, I had an opportunity to work with this new container native cloud offering. It is quite …
The situation discussed in this article is as follows: a rich client web application (JavaScript based, could be created with Oracle JET or based on Angular/Vue/React/Ember/…) is embedded in …
This article describes – in two installments – how events are used to communicate a change in a data record owned by the Customer microservice to consumers such as …
This article describes – in two installments – how events are used to communicate a change in a data record owned by the Customer microservice to consumers such as …
A fairly common combination of Oracle Public Cloud services that I use together – for example for the implementation of microservices – is DBaaS, Application Container Cloud, Application Cache …
Oracle Code Rome 2019 – Business and IT Agility Through DevOps and Microservice Architecture Powered by Containers and Cloud: https://www.youtube.com/watch?v=gm9vfK9fILM Turn Data into Business Value – Starting with Data …
This article will show how to run an Oracle Database on a Docker host using the prebaked images on Oracle Continer Registry. It is my expectation that it takes …
Oracle has been active with Docker for quite some time now. From the first hesitant steps from some enthusiastic employees with Docker build files that helped people to get …
In this article, I discuss my steps to get going with Istio on Kubernetes running on Minikube on Windows 10. Unfortunately, I have ran into an issue with Istio. …
Quick notes on the installaton of Minikube for trying out Kubernetes on my Windows 10 laptop (using VirtualBox –not Hyper-V) Following instructions in https://www.ibm.com/support/knowledgecenter/en/SS5PWC/minikube.html Download Windows installer for MiniKube: …
Project Fn is an open source project that provides a container native, poly-language, cloud agnostic (aka run on any cloud) serverless platform for running functions. Fn was launched during …
A short and simple article. I needed a Debian VM that I could use as Docker host – to run on my Windows 10 laptop. I resorted to Vagrant. …
In this article I will demonstrate how we can work with JSON based data – for analysis, exploration, cleansing and processing – in JShell, much like we do in …
In a recent article, I created an isolated Docker Container as Java 9 R&D environment: https://technology.amis.nl/2017/10/11/quick-and-clean-start-with-java-9-running-docker-container-in-virtualbox-vm-on-windows-10-courtesy-of-vagrant/. In this article, I will use that environment to take few small steps …
The messages from JavaOne 2017 were loud and clear. Some of these: Java 9 is here, the OpenJDK has all previously exclusive commercial features from the Oracle (fka SUN) …
Here is my entry for the Oracle Developer Community ODC Appreciation Day (#ThanksODC). It is quite hard to make a choice for a feature to write about. So many …
I have not seen many sessions on SaaS and business applications at OracleOpen World. Yet SaaS is becoming increasingly more important. The number of SaaS applications or at least …
In his keynote on October 3rd during Oracle OpenWorld 2017, Thomas Kurian stated that the vision at Oracle around analytics has changed quite considerably. He explained this change and …
From Thomas Kurian’s keynote during Oracle OpenWorld 2017 – see https://youtu.be/cef7C2uiDTM – a quick recap of the five most important announcements regarding IaaS: 1. 2. 3. 4. 5. World …
On YouTube, you will find the 44 min recording of my talk on Oracle Code San Francisco (October 2017): https://www.youtube.com/watch?v=khP3yHmbtpM The slides are on SlideShare: Real Time UI with …
Watch Keynotes on YouTube using these links: Larry Ellison (Sunday Oct 1st) – https://www.youtube.com/watch?v=HEupUSSSEBo Dave Donatelli (Tuesday Oct 3rd) – https://www.youtube.com/watch?v=irvNYpCopA8 Thomas Kurian (Tuesday Oct 3rd) – https://www.youtube.com/watch?v=cef7C2uiDTM Larry …
I have played a little with Oracle’s Data Visualization cloud and it is really fun to be able to so quickly turn raw data into nice and sometimes meaningful …
In a recent article I discussed how to programmatically fetch a JSON document with information about sessions at Oracle OpenWorld and JavaOne 2017. Yesterday, slidedecks for these sessions started …
UIs Public End User Artist Proposal Portal (JET on ACCS) Backoffice Proposal Manager (ADF on JCS) Twitter Account @SoaringClouds. Note: hashtag used to publish artist proposal: #paasaces APIs API …
Today – Wednesday 27th of September – saw close to 50 people gathering for the OAUX (Oracle Applications User Experience) Strategy Day. Some attendees joined from remote locations on …
Oracle offers an Event Bus Cloud Service – an enterprise grade Apache Kafka instance – with large numbers of partitions and topics, (retained) messages and distributed nodes. Setting up …
One of the Oracle Public Cloud Services I have seen mouthwatering demos with but have not actually tried out myself is Oracle Data Visualization Cloud. I had several triggers …
