AMIS Technology blog
Fri Jul 8 23:46:25 EDT 2011
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ODTUG KScope 2011 - Last week I attended my very first ODTUG KScope conference in Long Beach, California. I have  attended conferences by ODTUG before, but they were never this broad. Sunday On Sunday I attended the APEX symposium. It was nice to see that APEX is being developed by a rather small, but geographically dispersed, group of people. Between them, [...]

ODTUG KScope 2011: looking back - Last week the yearly ODTUG KScope conference took place in Long Beach, California. I always need to time to let this wonderful event really sink in. The number of sessions and the wealth of information that you get is really quite extraordinary. In this blogpost I will highlight some of the sessions that I attended. Sunday Sunday is [...]

RuleGen 3.0 – the latest, leanest and most robust solution for complex data constraints in an Oracle Database - No matter how complex the enterprise and application architectures become, no matter the number of tiers, services, devices and user interfaces – at the heart of most enterprises will be a relational database. And no matter how hard we try to implement a fully service based architecture or a multi-purpose business tier (for example using EJBs) [...]

Using JPA to persist the Tour de France Java Object Graph to relational database tables - In a recent article – http://technology.amis.nl/blog/12786/building-java-object-graph-with-tour-de-france-results-using-screen-scraping-java-util-parser-and-assorted-facilities – I described how I retrieved the statistics for recent Tour de France editions from the official Tour de France website from my Java program and constructed an Java Object Graph for the data on stages, riders and rankings. In this article, I will show how I have persisted [...]

AMIS Mobile SIG – rain sensors pouring data into the mobile network - Last night, the AMIS Mobile Special Interest Group convened. This session had as objective to explore the many different mobile agents and devices that we encounter, the types of signals, information and functions that are relevant with these various agents and the impact their inclusion in the mobile sphere of our customers has on the [...]

Building Java Object Graph with Tour de France results – using screen scraping, java.util.Parser and assorted facilities - Last Saturday, the Tour de France 2011 departed. For people like myself, enjoying sports and working on Data Visualizations on the one hand and far fetched uses of SQL on the other, the Tour de France offers a wealth of data to work with: rankings for each stage in various categories, nationalities and teams to [...]

Specificatiefout, programmafout of testfout? - Tijdens de voorbereiding van een kennissessie georganiseerd door AMIS kwam een collega met een interessante praktijk case. Doel van de functie is het omzetten van radialen naar graden. Om de werking van de functie te testen voerde hij een reeks waarden in, lopende van 0 t/m 10. Vervolgens voerde hij de reeks van -10 t/m 0 [...]

Using SQL UNPIVOT to prepare data for dynamic ADF Faces User Interfaces - The UNPIVOT operator was introduced in Oracle Database 11g – see for example: http://technology.amis.nl/blog/2421/the-oracle-11g-unpivot-operator-turning-columns-into-rows. In Oracle, the UNPIVOT operation is the process of turning Columns to Rows. Put simply, by applying the UNPIVOT operator to a number of columns, every row is split into that same number of rows. Each of these rows has two [...]

Creating an ADF Faces Dynamic Table with multi-faceted Head-to-Head comparison between records - This article shows how to create a widget in an ADF Faces application that looks like this: This table shows a comparison between records – Departments in this case – on a number of different aspects. The table compares four departments on characteristics like their name and location, the number of staff they contain and the [...]

Suggestion for new type of ADF DVT (Data Visualization): the Delta Graph – to visualize relative changes integrated in a table layout - I may have bored you before with stories about Data Visualization. It is one of my favorite topics. We deal in data. And visualization of data can help to increase the value of the data tremendously. Proper visualization provides quicker insight and reveals the true meaning of the numbers in an instant. Newspapers frequently use graphics [...]