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Creating onPageLoad functionality for JavaServer Faces using Facelets
Posted: March 16, 2007Published: March 9, 2007
Publisher: Alyssar
JavaServer Faces comes with lots of predefined tags. Unfortunately there is no tag providing onPageLoad functionality. I found this a rather desirable functionality. In complex user interfaces, excuting one method on your backing bean in the Invoke Application phase is not enough and you need to execute a second (or third, fourth, etc.) method in the Render Response phase (when rendering the result page). The IBM JSF implementation provides such a tag. Unfortunately, all other implementations do not. If you are using Facelets however, there is a solution to the problem. This article will describe how to create a TagHandler class that can execute a method through an EL expression. There are three steps to this solution:
  1. Create a TagHandler;
  2. Add it to your taglib.xml file
  3. Use it in your page


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