What is the role of Renderer in JSF? and justify the statement "JSF supports multiple client devices".
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After creating JSF components, it is also necessary for each component to be rendered to the client so that it can be visible to the client’s device. Each of the tag gives rise to an associated component. A renderer is a type of class that is responsible for encoding and decoding components. Encoding displays the component while decoding translates the user’s input into components value i.e. transform it into values the component can understand.
Now a days there are many devices that are web enabled. So application developers have challenge to develop components that can work across various platforms. For example, if we have an application that works on standard web browser and we want to extend it to make it enable to work on a WAP device. So, to handle this case we need components to be rendered in more than one way. Here JSF can be helpful. This is a simple task for JSF. The solution is to develop separate renderers for the component. JSF components use different renderers depending on the device used.
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