Recent Posts by Juergen Kress

After creating my first pages with Oracle JET, some database data visualization and an Input Form, I want to create a JET application with navigation and a responsive layout. Here are some pictures how the application looks like after building it: Start screen of the application This is the startscreen of the application: When “Table” is selected, there is a submenu where a user can make another selection: When a choice is made in the subselect, you see the results. Read the...

Oracle Service Bus (or Service Bus for short) provides a very powerful set of APIs that allow experienced Java developers to create custom transport providers. This is called Service Bus Transport SDK. By using this SDK, it is possible to create custom transport providers to handle both inbound and outbound message handling for specific protocols, without having to worry with the internal details of Service Bus. The objective of this post is not about how the Service...

I was researching how to plugin WebSocket into JET. I would like to share my findings and explain how it works. It is amazing, how scalable and quick it is to send JSON message through WebSocket channel and render it in JET. Luckily WebSocket client is implemented in JavaScript, this integrates perfectly with Oracle JET (also based on JavaScript).Watch recorded demo, where I'm sending updated data with JSON message through WebSocket. UI chart is rendered with JET. See...

Introduction Oracle Service Bus message context is a set of properties, so called context variables, that hold message content as well as information about messages as they are routed through Oracle Service Bus (OSB). The Message Context Schema specifies the element types for the predefined message context variables. Such a predefined context variable is the variable attachments. Fig. 1 shows in an excerpt of the Message Context Schema the definition of the element attachmens. Obv...

In this article, I will describe how I took the Oracle JET Sample application that I deployed to Node.js – locally and in the Oracle Application Container Cloud-and extended it with a new tab containing a table component that is data bound to a collection populated from a REST API that also runs on Application Container Cloud and accesses a DBaaS instance. The initial application was described in this previous article (Deploying an Oracle JET application to Application...

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New to SOA 12.2.1 is the concept of Resiliency.  Oracle has introduced functionality that shuts down adapters when their composite failure meets a certain threshold. In effect, an error circuit breaker!  This is extremely helpful to prevent filling up the error hospital with an abundance of errors.  When suspended, the failed composite will retry the composite at a defined interval in an attempt to un-suspend the service adapter.  The idea is to suspend any inbound adapters...

This is an important week in the mobile scene where Mobile World Congress is taking place in Barcelona, I think there is no better time to announce that the first Oracle Mobile Cloud Service in Spain is now in production. If you don't know what Mobile Cloud Service is, you can check all my previous posts here. Posts about Mobile Cloud Service. Click here to see the original post in avanttic blog (In Spanish) In avanttic we developed this project combining Oracle Mobile...

SOA 12.2.1 provides support for end-to-end JSON and Javascript. We don’t have do internal mapping between XML and JSON as in 12.1.3. As part of this post, let us implement a simple REST service to demonstrate this new feature – End to End JSON with Javascript. Let us create a very simple SOA Composite which exposes a JSON based REST interface, manipulates the values using Javascript and calls an external JSON based service. Rest Service External JSON Service Setup For external...