Gathering data for demo projects – Data Visualization, Pattern Recognition and Data Analysis based on the 2014 Eurovision Song Contest

Lucas Jellema 4

Having access to useful data to create demonstrations and sample applications can be quite a challenge. Demonstrating the power of data visualizations (for example with ADF DVT) or the capabilities of pattern recognition (such as through Oracle Database 12c Match_Recognize) requires a data set that allows for interesting manipulation and […]

OOW13: First glimpses of the new SOA Suite 12c

Lucas Jellema

During this week’s Oracle OpenWorld Conference, we were given some sneak peeks into the short term future of the Oracle SOA Suite. During various roadmap sessions, on the demo grounds as well as in the keynote session by Thomas Kurian (the replay of which you can see here: http://medianetwork.oracle.com/video/player/2687033686001), new […]

14 augustus – gratis seminar Oracle ADF 12c, JDeveloper 12c en WebLogic 12c revealed

Saskia van der Maat

Dit is de zomer van de 12c-lanceringen. Na de database zijn sinds vorige week Oracle ADF 12c, Oracle JDeveloper 12c, en Oracle WebLogic 12c beschikbaar. Met zoveel nieuwe mogelijkheden dat AMIS op 14 augustus een gratis seminar organiseert waarin we de nieuwe versies introduceren, becommentariëren en vooral ook demonstreren. Maar […]

The APEX of Business Value… or: the Business Value of APEX? Cloud takes Oracle APEX to new heights!

Lucas Jellema

The attraction of APEX has increased tremendously with the recent launch of the Oracle Cloud. APEX already supported departmental development and deployment of business applications with minimal involvement from the IT department (only a database needed be made available). Positioned as the ideal replacement for MS Access, APEX probably has […]

Create simple Java application to post JSON message to CometD Bayeux Channel using Apache HttpClient and Maven style NetBeans project

Lucas Jellema

The objective discussed in this article is to post messages to a CometD Bayeux Channel with a standalone Java Class – without dependencies on CometD. For example to control from Java the Slideshow introduced in the synchronized Slideshow demo application created using CometD (see previous articles Push based synchronized Slideshow […]

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 […]

No JDBC based data retrieval in Java applications – RESTstyle, JSON formatted HTTP based interaction from Java to Database

Lucas Jellema 1

This article demonstrates how Java application can query data from relational databases (well, in this case more specifically the Oracle RDBMS) without the use of plain old JDBC but instead through a simple HTTP interaction with a RESTful service that returns the data in JSON format. In this way, issues […]