You can use the rendered attribute to control whether the debug component is rendered. Additionally, page authors can change the hotkey (which by default is CTRL + SHIFT + d, where the d stands for debug) to CTRL + SHIFT + ?, where ? represents the key specified as the value of the hotkey attribute. If a value is provided, the given token will be replaced literally with the remainder of. In this case, the token will be replaced with blank text, but will be 'defined' for the purposes of ifdef and ifndef. Typically, the best place to put the ui:debug tag is in an application's main template, which lets developers enable or disable viewing of debugging information in one central location. define token value When defining a constant, you may optionally elect not to provide a value for that constant. If the user presses CTRL + SHIFT + d, JSF opens a window that shows the debugging information captured by the debug component. That debug component captures debugging information, namely the current state of the component tree and the scoped variables in the application, when the component is rendered. When the ui:debug tag is placed in an XHTML page, it creates a component and adds it to the component tree. First, you need to define what success looks like. So now you can control the layout of many pages with a single template (layout). Hello, I am running a java-based web app on JBoss. Organizational planning concerns how your enterprise expects to utilize auto-tagging. You define a single template (meaning layout), and you reuse that template with multiple compositions. This tab library contains a tag- ui:include- that's analagous to jsp:include, but encapsulating and reusing content is only half the templating story, because templating also lets you encapsulate and reuse layout. You encapsulate and reuse content, so that changes to one file, header.jsp, affect the header on every page. One JSP page, say header.jsp, encapsulates the header content, and the header is included by each page. The prototypical example for jsp:include is a header on each page in a web application. If you've used JSP before, you've probably used jsp:include.
So what is templating, how can you benefit from it, and how does this tag library implement it? Templating is so useful that there are entire frameworks, such as Tiles and SiteMesh, that are built around the concept of templating. The tags in this library add templating-a powerful view composition technique-to JSF.
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