Determining Whether You Need a Custom Component or Renderer
The JavaServer Faces implementation supports a rich set of components and associated renderers, which are enough for most simple applications. This section helps you decide whether you need a custom component or custom renderer or instead can use a standard component and renderer.
When to Use a Custom Component
A component class defines the state and behavior of a UI component. This behavior includes converting the value of a component to the appropriate markup, queuing events on components, performing validation, and other functionality.
You need to create a custom component in these situations:
You need to add new behavior to a standard component, such as generating an additional type ...
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