Weblog for the AMIS Technology corner
Posts tagged rich
JDeveloper 11g PS 1 has been released – cool stuff!
Nov 14th
Last month during Oracle Open World I wrote an article on the upcoming features of PatchSet 1 for JDeveloper 11g: . Now this release has been published and is delivering on those promises. For an overview of all (?) new features, take a look at What's New. It is a fairly dry, emotionless, factual list of features small, large and enormous new features. With brief descriptions and screen shots for many of them, it gives you a quick overview of what might be useful to you. Note however that some gems are hidden away in this list for which the meaning and importance is not fully captured I believe in this summary. And of course the relevance of any new feature depends on your specific situation.
ADF 11g – Validation of Uploaded Files with the inputFile component
Sep 14th
Today we had a little issue with the inputFile component in ADF 11g, especially with its behavior after failed validation. Our situation: the inputFile component has autoSubmit set to true – so immediately after selecting a file in the browser dialog is the upload started in an asynchronous request. Validation is performed, either from validators or in a valueChangeListener (because I was too lazy to look up the syntax for a validator).
The behavior of the inputFile component is such that after the initial upload, the name of the uploaded file is shown as a read only value and the browse button is replaced by an update button: we can change the file, but not perform the initial upload anymore. When the user presses the update button, a small pop up appears in which we can browse for a file, click on the OK button to have it uploaded or click on Cancel to have the update aborted.
Unfortunately, when the file that was initially uploaded has failed validation, the OK button in this popup does not allow us to actually upload the newly selected file. The page continues to display the uploaded, invalid file and the update of that file to resolve the validation errors can not be performed.
We solved this issue
ADF 11gR1 – new Hierarchical Viewer for visually pleasing representation of data structures
Jul 7th
One of the data visualization tags required by the teams working on the Oracle Fusion Application Module for Human Resource Management, was a component capable of rendering organization charts. Hierarchical structures from CEO all the way down to the youngest trainee. In a pleasing, graphically interesting, somewhat animated fashion. And so the ADF team developed the Hierarchy Viewer. And since they developed it anyway, we can now make use of it as well. While it may not be the component you will most frequently use, it is certainly an interesting presentation option for special data structures. This component can work against the same tree data binding you would use for tree tables or trees, and can therefore be configured in a very simple, declarative fashion.
In this article some simple examples of how to use this new component. This article is the short summary of a presentation and demonstration I did at the recent ODTUG Kaleidoscope 2009 conference (late June, Monterey). It demonstrates how the conference’s session schedule can be represented in the Hierarchy Viewer.
That’s Rich! Putting a smile on ADF Faces (presenting at ODTUG Kaleidoscope 2009)
Jun 23rd
The ODTUG Kaleidoscope 2009 conference started on Sunday with four parallel symposia followed by a stunning demonstration of the upcoming Fusion Applications product based on Oracle Fusion Middleware 11g (including the most visible parts: WebCenter and ADF) – more on that presentation in a later blog. On Monday I did my two presentations – the first of which was titled:"That’s Rich! Putting a smile on ADF Faces". In this presentation I tried to explain what support ADF Faces (11g Rich Client) provides for creating really rich User Interfaces. Duncan Mills graciously had allowed me to present using the upcoming JDeveloper 11.1.1.1.0 release (internal code name Bulldog) that is part of the 1st July launch of Oracle Fusion Middleware, and it allowed me to show off some of the new stuff.
ADF web applications have been hailed as productive to develop and functionally complete. However, ADF 11g RichFaces makes them visually attractive, rich and really Web 2.0 too. This presentation is about enriching ADF Web applications with 11g RichFaces. It discusses features, components, containers, events and behaviors that ADF developers now have at their disposal and how to best use them. Key topics: panelsplitter, accordion, popup, menu, skinning, charts, Server-Push, AJAX-PPR-client-server-interaction, client events API, customization.
ADF Faces RC – Highlight partially refreshed areas to enlighten the user about automatic updates
Apr 6th
One of the rich aspects of ADF Faces RC (and most Web 2.0/AJAX components) is functionality that performs Partial Page Refresh operations: actions by the user trigger asynchronous communication between browser and server that in turn may cause selected areas of the page to be refreshed. For example: entering a value may lead to a refresh of a derived value or a conversion of the entered value. Sometimes a single user action lead to refresh of multiple items and areas on the page. On other occasions, server push may cause items or page areas to be refreshed.
Without additional effort, these partial updates are subtle. They just happen. When the changes are small, the user will probably not notice the refresh taking place. He/she may see the new value, wondering where that came from. And that may be just fine. However, it could also be we like to make it clear to the user that and when items and areas have been refreshed. For example by highlighting the item or region in question immediately after the refresh takes place and having the highlight effect slowly fade away.
It turns out to be fairly easy to implement such a ‘highlight after partial refresh with fade away’ effect. This article demonstrates a straightforward example of that behavior.
