There’s a very good article on JavaWorld by Klaus Kreft and Angelika Langer (the latter is the author of the well-known Java Generics FAQ) with the title Understanding the closures debate. I heard about this article on JavaPosse episode 194, and it’s also being discussed on Artima.
I knew that there were proposals to add closures [...]

Popularity: 1522 points

In APEX 3.1.1 all compound item types - items that contain HTML layout and multiple inputs - have been surrounded by a fieldset. The result is that some items that previously nicely aligned horizontally now wrap to the next line.

It mainly effects items with a Post Element Text or where a ColSpan > 1 is [...]

Popularity: 343 points

Last thursday I hosted my first APEX workshop from a teaching perspective, and I must say it’s a whole different experience then being the attendee. Luckily Roel Hartman and I had prepared the workshop properly. (we hosted the workshop together)
First off I gave a presentation about APEX. My focus was especially set on “seeing the [...]

Popularity: 310 points

In a previous post I mentioned a Drag & Drop feature we created in APEX. Because there is a lot of interest for this subject, I created a small movie where I show the drag and drop function. The purpose is to load an Open Action (or Order) into a Truck for a specified day.
Click [...]

Popularity: 240 points

Using the Preferences of SQL Developer you can register a User Defined Extension (UDE). This UDE is just a small XML file containing a command or query. If your Oracle Designer Repository is queriable by the user you use for your connection, you can show the Table Definitions in Designer alongside the definitions in the [...]

Popularity: 268 points

The last morning of this years ODTUG was completely filled with one three hour session: APEX versus ADF ’shootout’. Although the presenters, Lucas and Dimitri, quickly stated that there was no violence to be expected, the audience was hoping for some clear statements.
Popularity: 285 points

Popularity: 285 points

Building Advanced Tabular Forms was the first subject of the day. In APEX you can build tabular forms (a multi record update form) using a wizard or manually (with the APEX_ITEM API and processing with the APEX_APPLICATION API. Another option is using a collection which gives you full control on the processing - like distributing [...]

Popularity: 299 points

The third and last day of the conference. The first session I went to this morning was a very interesting one, “The Busy Java Developer’s Guide to Scala” by Ted Neward. He explained the basics of the Scala programming language. Scala is a new and very interesting programming language that combines object oriented and [...]

Popularity: 565 points

The first keynote of today was “Language-Oriented Computing: Shifting Paradigms” by Neal Ford. It was a good presentation (with nice slides), mainly about domain-specific languages. See also Martin Fowler’s page on DSLs.
At 9:10 I went to “Spring 2.5 On the Way to 3.0″ by Jürgen Höller (one of the main committers on the Spring [...]

Popularity: 545 points

The first session of this day was APEX Development: Watch it live! by Bill Holtzman of the National Air Traffic Controllers Association. He built a Grievance Control system for the NATCA used by hundreds of users. Now he showed live how to build a football betting system in only 45 minutes (using some prefab [...]

Popularity: 337 points