immediate-attribute

I have a h:datatable showing a list of rows, and the fields of each row are input fields. I render an "Add Row" button before the table, and a "Remove Row" button on each row of the table. The baking bean is viewScoped, and the buttons add/remove elements from the java list in the backing bean, and then return to the same view. I set the immediate attribute to "true" in the buttons in order to not validate the input fields when I add or remove a row. Everything works ok but one thing: the values of the input fileds are cleared. I thought that the view kept the values beacuse the bean is

Should immediate="true" never be used when dealing with an AJAXified JSF 2.0 component? The example might be: If I want to implement a "Cancel" button on JSF 2.0 page where if the user hits "Cancel", no validations should run, should I set immediate="true" on the component if it is an ajaxified component or should specify that no components on the form should be processed? If so, what is the way to implement this functionality using the AJAXified features of the component and not the "old way" of using immediate="true" ? Indeed, the purpose of using immediate="true" on a cancel button has

I have multiple forms, where I have mandatory fields and optional fields. To submit such a form I require the validation on the required-attribute to be executed, which works fine. To cancel such a form I use the attribute immediate="true" on the p:commandbutton , which makes its action happen during the Apply Request Values -Phase as addressed here: How to skip validation when a specific button is clicked? However, for large forms I want to provide the user with a Save-Button, so he can proceed later. For just saving the current state I also want to ignore the validation of the required