What is UIX?
This is what Oracle says about UIX: "UIX is an extensible, J2EE-based framework for building web applications. It is based on the Model-View-Controller (MVC) design pattern, which provides the foundation for building scalable enterprise web applications. UIX is server-based and supports a variety of clients, including web browsers and mobile devices. While UIX is based on Java technology, Java is not required on the client."
There is a lot of very useful information on OTN as well as on Jonas Jacobi's blog at http://www.orablogs.com/jjacobi/ and I would suggest you spend time going over it if you are so inclined. In particular, these are good posts to read:
- Is ADF UIX a new technology? ( http://www.orablogs.com/jjacobi/archives/000111.html )
- What is ADF UIX?( http://www.orablogs.com/jjacobi/archives/000110.html )
- Roadmap for the ADF UIX technology and JavaServer Faces ( http://www.oracle.com/technology/products/jdev/collateral/papers/9.0.5.0/adfuix_roadmap/adfuix_roadmap.html )
Most of these changes are fairly straightforward to make if you spend a little time looking and going over these UIX files, and I am going to try and cover a few of the more popular requests in this blog over the coming weeks.
Before I proceed any further, I have to make this standard disclaimer:
- I am NOT suggesting that you go around and muck with these UIX files.
- Any changes you make to UIX files are unsupported.
- Oracle Support will not support your installation if you run into problems as a result of making changes to these UIX files.
- You will have to reproduce any errors on an instance without these UIX changes for Oracle Support to help you.
- Any upgrades or patches you apply may overwrite custom changes you make to your UIX files.
Assuming that you have associated your Discoverer middle-tier with an infrastrucure, and therefore have public/private/SSO connection functionality, when you connec to Discoverer Plus or Viewer, you are presented with two ways to connect to Discoverer.
The first one is by using a pre-defined public or private connection.
The second way is by entering the connection information directly.
Ok, there is a third way also, of using URL parameters, but let's forget that for a minute.
But what happens if you do not want to present users with the option to connect directly at all? To do this you have to make a minor change in a UIX file.
The file to change is under your Discoverer middle-tier's installation folder. If you have installed Discoverer under 'D' drive under a folder named 'ias', the actual path would be D:\ias\j2ee\OC4J_BI_Forms\applications\discoverer\discoverer
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Note: Make a backup of this file before you begin. Make a backup of this file before you begin. In case you weren't paying attention; Make a backup of this file before you begin!
Open this file in a text editor like Notepad, TextPad, JEdit, etc... and locate the following lines where this piece of text appears: "connectDirectly"
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You have to delete a lot of lines now, as shown below.
Start with the line that begins with <rowLayout width="90%">
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Save the file (you DID make a backup of this file, right?!).
Restart your middle-tier's OC4J_BI_Forms component.
Close your browser, open a fresh browser window, and open the Discoverer connections page (http://yourservername.com:portnumber/discoverer/viewer or /plus)
If you do screw up (like I did the first time), you will see this nice pretty "500 Internal Server Error" screen.
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To undo your changes, simply delete your existing ViewerConnections.uix file and copy the backup file you made as ViewerConnections.uix.
Warning: Do not try this without adult supervision. The material described here is intended for mature audiences, reader discretion is advised. Seriously, these hacks are not supported; use them with caution and common sense. See my disclaimer above.
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