Recent Posts by Juergen Kress

At the recent Oracle OpenWorld Dubai show, Oracle showed a demonstration of how natural Honey can be verified by blockchain.  You may wonder, well, why would anyone need Honey verified by blockchain? You may be surprised to learn that Honey is one of the most frequently impure or mislabeled foods. In recent years, Honey mixed with impure ingredients such as sugar, salt, corn syrup and even toxins has been found at grocery suppliers and retailers. According to research by Food...

JUnit is a unit testing package for Java language and can be used to test Oracle ADF application as ADF is built on top of the J2EE framework. Unit testing is basically is a process to verify the smallest testable module against some defined test criteria. Here I am going to illustrate that how can we set up and use JUnit in JDeveloper 12.2.1.3 to test ADF application. JDeveloper 12.2.1.3 comes with JUnit extension so no need to install it separately. Let’s start by creating a...

Everledger, a leader in developing real-world applications of blockchain, has assessed Oracle’s blockchain offering and product capabilities to provide enhanced customer solutions. The outcome has seen synergies in enhanced product feature sets and functionalities requirements including Oracle Blockchain's rich history database that transparently enables analytics integration for interactive dashboards and reports. Learn more at oracle.com/Blockchain. Watch the video here. PaaS...

The following article shows how to programmatically validate a set of JET UI components. For backward compatibility, the application has been extended to support the new JET 6.0.0 web components, as well as the older (on or before 3.2.0) html components. The sample application consists of two forms, each of which has been built on a template supplied from the JS file. The validators and the button click functions have all been built through the underlying data structure. Read...

Introduction In the past months I was introduced to Oracle JavaScript Extension Toolkit, an extensible product put together by Oracle to enable building enterprise grade front-ends in JavaScript (client-side applications) which happens to be integrated in the Oracle Cloud and seamlessly integrated in Oracle’s SaaS products such as Oracle Cloud Visual Builder (yes, you can build JavaScript front-ends with a drag-and-drop interface in the Cloud). On an ever-changing JavaScript...

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In the first blog about blockchain, I used Oracle Compute Cloud Classic and installed MultiChain on it. Since then, Oracle has released a Blockchain Cloud Service with a lot of out of the box functionality, based on Hyperledger. In this blog post I will describe how to create a smart contract for a webshop use case: getting offers from different suppliers for a specific order. I already know node.js so I will write the ChainCode in node. Note that go is also supported. Prerequ...

This is a quick and short article which talks about displaying ADF BC REST resource's validation message on the JET UI. The inital step to is to create a validator method on one of the desired attributes of the ADF entity object. For my use case, I have selected Salary attribute on Employee EO. While calling create or save on your collection data, the error callback has 3 parameters. The first parameter contains all the details of the error thrown. The responseText attribute...

Arab Jordan Investment Bank (AJIB) is now in production with the Oracle Blockchain Platform.  The project is the largest blockchain deployment in the Middle East.   AJIB deployed Oracle Blockchain Platform to replace the banking application previously used for money transfers between AJIB entities, resulting in cost-savings and real-time cross-border transactions. Results before and after using blockchain technology Before using blockchain, money transfers between Arab...