== ADF Facets ==

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The panelPage component uses facets (or JSF f:facet tags) to render children components in specific, predefined locations on the page. Consider a facet as a placeholder for one child component. Each facet has a name and a purpose, which determines where the child component is to be rendered relative to the parent component. The child component is often a container component for other child components. 

The panelPage component uses menu1, menu2, and menu3 facets for creating hierarchical, navigation menus that enable users to go quickly to related pages in the application. 
