Leon van Tegelen
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Posts by Leon van Tegelen
SiteMesh is a web-page layout and decoration framework and web- application integration framework to aid in creating large sites consisting of many pages for which a consistent look/feel, navigation and layout scheme is required.
SiteMesh intercepts requests to any static or dynamically generated HTML page requested through the web-server, parses the page, obtains properties and data from the content and generates an More >
the use of XmlHttpRequest to communicate with the server asynchronously in the background, and populating the page by manipulating the DOM tree. So the page can be updated without refreshing the whole page, giving you things like instant validation and really dynamic screens..
They took it even a step further in creating a behavior (htc file) which they attached to HTML tables. In this way the tables act like multi record blocks in Oracle Forms. The table remains in place and only data change, complete with scrolling. Really cool. Changes in data are cached in an XML object clientside until the save button is pressed. The More >
Oracle’s JHeadstart team does a double whammy, not only do they release the production version of ADF JHeadstart but they announce it on their brand new weblog.
As already mentioned in earlier posts on our blog the new and improved JHeadstart builds on the ADF runtime. For a customer we allready have working with several beta builds. So far it is looking really good. The application (20 master- detail multirecord UIX screens) already meets the specs for about 80 – 90%. When I complied the project last week using an Ant script I noticed the following line ” compiled 2 classes “. Yes, we only coded two java classes to that point, a special LoginAction (10 lines of code) and a BaseAction class. The rest is provided by the ADF framework and JHeadstart extensions on ADF. 2 javaclasses and a big bunch of xml files and the application is working 10 days after we started on the project…..
Recently I ran into a bug in JDeveloper 10.1.2 or actually in the ADF Business Components version supplied with it. Calling
getAttributesNames() on a viewobject resulted in a nasty npe. After spending 20 minutes confirming it wasn’t some programming glitch I introduced I checked Google and the otn forums (Yes, in that order) and I found a forum entry where Steve Muench indeed aknowledged it is a 10.1.2 bug. The workaround I my case was quite easy , I made a small utitlity method mimicking the original getAttributeNames.
As such this doesn’t really merit a post, the bug is not a biggie. But what has been bugging me for some time know is that I can’t get a grip on Oracles release schedule. For example, this bug when will it be fixed? Will there be any maintenance releases before the big 10.1.3 release? Speaking of 10.1.3, when will it come ( April, summer I’ve heard different rumours ). I don’t More >
Chris Schalk has posted a very interesting blog on web templates in JDeveloper 10.1.2 (production) and JDeveloper 10.1.3 (preview). This how-to is only published on the Chris Schalk’s blog
This will surely increase your productivity, when working with custom designs
The upcoming JHeadstart release will support ADF but not ADF Faces (JSF). This utility makes you think it could be a way to extend ADF Jheadstart to ADF Faces JHeadstart