Databases Reference
In-Depth Information
Implementing AJAX functionality via a plug-in is much easier to do than the process just described.
In the region plug-in example to follow, you will create an AJAX function and you should be able to see
the common features with this example.
Figure 5-10. AJAX POST request
Figure 5-11. AJAX POST response
Example Business Problem
As with the other plug-ins, the first thing you should do is state your business requirements. This region
plug-in should display the titles from an RSS feed. The plug-in should also implement some additional
related functionality. The following is the complete list of requirements:
•
Display a list of RSS feed titles.
•
Configure the maximum number of RSS feeds in the region, ranging from 5, 10,
and 15 items.
•
When a user clicks on an RSS title, a modal window appears and displays the
content of the RSS feed. The default modal window size will be configurable.
The plug-in you are going to build will use some of the UTL_HTTP features in Oracle to obtain RSS feeds.
HTTP access and other network services are potential security vulnerabilities, so their access is restricted
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