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JBoss Portal Server Development by Ramanujam Rao

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JSR-168 AJAX limitations

Before we look at the features and options provided by the new specification, let's look at how traditional JSR-168 portlets functioned. As shown in the following figure, the "Action" request invoked the processAction method on the server, which implemented controller logic to route it to the correct view. The "Render" request then invokes the render method to serve the content page to the browser.

JSR-168 AJAX limitations

However, when the portlet uses AJAX and needs to makes an asynchronous call, it has to use ActionURL . This in turn follows the standard processing when processAction processes the request and the render method creates the user ...

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