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Publishing to CometD Bayeux Channel from inside the Oracle Database – PL/SQL...
In recent articles, I have introduced CometD as framework for Server to Client and Client to Client Push: Running CometD 2 examples – locally on Tomcat using Maven and NetBeans...
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Notifying ADF applications of database changes – fast and lean using Database...
In two articles, I will demonstrate how we can ensure that changes in the database – new, changed or deleted data – can rapidly be reflected in ADF based user interfaces running in browsers. This story...
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Notifying ADF applications of database changes – fast and lean using Active...
Yesterday I wrote that in two articles, I would demonstrate how we can ensure that changes in the database – new, changed or deleted data – can rapidly be reflected in ADF based user interfaces running...
View ArticleJavaOne 2012: Thinking Through Java Enterprise Performance (BOF 4712)
Performance of Enterprise Java Applications is a requirement and usually a challenge. Business requirements on systems can be stiff, successful systems can easily be overloaded and complex application...
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JavaOne 2012: What’s new in Servlet3.1: An Overview
Session at JavaOne come in various shapes. Some are visionary, high level and future oriented. Others are detailed and discuss practical, sometimes very fine grained topics. One of the sessions I...
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Java EE 7: EJB publishing CDI Events that are pushed over WebSocket to...
In this article, I show how I have created a simple and fairly meaningless Java EE 7 application that uses a number of smart Java EE features: a stateless session bean has a scheduled method (that is...
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Live match report using JMS, BAM, ADF Push and Data Visualization
Real time events can be translated into a live visual representation using a largely declarative approach. Events can be published for example on a JMS Topic. Using Oracle BAM (Business Activity...
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ADF 12c: Using WebSockets to implement client to client push (in a scalable...
WebLogic 12c (12.1.2) has support for WebSockets. ADF 12c runs on WebLogic 12c. Therefore, we should be able to leverage that WebSockets support in an ADF application. And indeed we can, as this...
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OTN article: Speedy Perception trumps Speed Reception – on Smart Asynchronous...
The Oracle Technology Network has just published my article on asynchronous interactions used in multi-layered architectures to free up resources and create at least the perception of speedy...
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StreamExplorer pushing findings as JSON messages to a WebSocket channel for...
A common desire when doing real time event processing with Stream Explorer and/or Oracle EVent Processor is the ability to present the findings from Stream Explorer in a live dashboard. This dashboard...
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Revelation at Oracle OpenWorld 2016: MCS is Multi Channel Service (as well as...
While web applications and mobile apps are the common channels for user interaction, they are not the only ones. Oracle is recognizing that fact and as a result MCS (Mobile Cloud Service) is undergoing...
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Node.js application using SSE (Server Sent Events) to push updates (read from...
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...
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Server Sent Events from Node.js to Web Client – pushing user command line...
Node can push messages to browser clients, using WebSockets and the simpler Server Sent Events (SSE) mechanism. We will use the latter in this article – to push updates (event) to all subscribed...
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Recording, slides and code resources for Oracle Code session: Real Time UI...
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...
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Deploying Oracle OEM agents 13c on windows targets (2008 R2) while OMS is on...
Situation at customer’s site: OMS 13.2 on Oracle Linux, targets are Windows machines, and a bit ancient: Windows 2008 R2. How to deploy agents on those targets? Several methods are possible in theory....
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