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JavaServer Faces by Hans Bergsten

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Process Validations

The processValidators() method is called on the UIViewRoot component, causing the same method to be called recursively on all components in the component tree with the rendered property set to true and that were not validated during the Apply Request Values phase, which in turn calls the validate( ) method on the component if its an input component. Calling the validate() method causes a ValueChangeEvent to be queued if the validated value differs from the previous value and the local value to be set to the converted, validated submitted value. If the submitted value is invalid, an error message is queued and the FacesContext renderResponse() method is called.

At the end of this phase, the broadcast() method of the source components for all events marked to be processed in any phase or in the Process Validations phase is called to notify the event handlers. The event handlers may call the FacesContext renderResponse() method, possibly after selecting a new view. If so, the processing continues in the Render Response phase. Alternatively, an event handler may render a response itself and call the FacesContext responseComplete( ) method, in which case the request processing is terminated.

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