feeds.getElementsByTagNameNS(node, ns,
localName), which returns a NodeList of elements of the specified
local name and namespace URI.
9.3 Setting the Environment
We need to develop a JavaScript application to download and display RSS
feeds with the Google AJAX Feed API. We need to register a web
application URL with the Google AJAX Feed API to download and
display RSS feed. We shall create a JavaScript application in JDeveloper.
Download and install JDeveloper 11g. To create a JDeveloper application
select File>New and subsequently select General in Categories and
Application in Items in the New Gallery window. Click on OK. In the
Create Application window specify an Application Name and click on
OK. In the Create Project window specify a Project Name and click on
OK. A new application and project get added to the Applications-
Navigator. Add a HTML page to the JDeveloper project by selecting the
project node and selecting File>New. In the New Gallery window select
9.3 Setting the Environment 185
Web Tier>HTML in Categories and HTML Page in Items. Click on
OK. In the Create HTML File window specify a File Name and click on
OK. An HTML page gets added as shown in Fig. 9.1.
Fig. 9.1 RSS Ajax Application
We need to register the URL for the HTML page with the Google
AJAX Feed API. Right-click on the HTML page and select Run. Obtain
the URL, which is http://127.0.0.1:8988/RSSAjax-
RSSAjax-context-root/.
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