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Posts by Erik Kerkhoven
For a customer with an interesting business we had to build a web application that has a RIA front end, displays data on maps, authenticates thru a web service that is connected with a back office customer subscription system, and that can handle any kind of data (for example shops, garages or whatever) as long as it conforms to a certain format. Depending on the specific dataset the application is configured in a different way and behaves differently. I call it a meta data driven application.
On Oracle OTN Shay Shmeltzer has written an article that explains how to use the Spring framework within JDeveloper and how to best setup JDeveloper for Spring 2.0. Interface21 has announced that the final release of Spring 2.0 is planned onSeptember 26th, 2006.
Shay will show “(…) some of the nice features that JDeveloper provides for Spring developers out of the box.” Getting exited?
What I mean with a meta data driven user interface is an application whose appearance and behavior is managed by a special set of data that is stored in a database and that is linked to attributes of the user. For instance the organization to which the user belongs has a contract whith the web application provider that enables the user to get certain types of information and disables other types. Therefore, a user interface widget, as for example a tree, should display nodes according to the set meta data that is connected to this user. Question is now how set up this stuff using Dojo for the presentation layer and Spring for the server side?
Op 15 en 16 juni vond in Antwerpen de SpringOne conferentie plaats. Dit event bestond uit vier keynotes, zes zogenaamde university talks, veertig (parallelle) presentaties en 48 sprekers. Dit alles werd bezocht door zo’n 400 ontwikkelaars en andere belangstellenden, afkomstig uit maar liefst 25 landen. In de gangen en zalen hoorde ik veel Engels, Frans, Duits, Italiaans, Spaans, Slavisch en Nederlands. Dit was de eerste conferentie in Europa die specifiek is gericht op het Spring platform. Het grote bezoekersaantal is een indicatie voor de huidige positie in de Java arena, die door Rod Johnson, de grondlegger van Spring, werd aangeduid als “world’s favorite application framework”. (more…)
In summer 2000 I started in the Field Service development team of Oracle’s eBusiness Suite (http://www.oracle.com/applications/service/srvonl_cont.html). The web form Dispatch Center contains four Java applets. One of them is a map. This map displays the location of the customers and the current position of the field service engineers who synchronize their mobile devices with a central database. The implementation of this map was quite problematic. Especially the performance caused severe headache. In 2005, five years and ten versions later, clicking the tab page of the map still was a receipt to freeze your applicationâ€¦ then I saw Google Maps and I nearly fell from my chair. The performance is amazing. But also development work to integrate a map into an application is easy.