Code structure issue in Mojarra

Question

Hi all,
we are designing a PhaseListener that dynamically can disable UIInput elements. However, the setDisabled() method applies only on the implementation classes, so I have to do something like this:
if (child instanceof HtmlInputTextarea) {
     ((HtmlInputTextarea)child).setDisabled(disabled);
} else if (child instanceof HtmlInputText) {
     ((HtmlInputText)child).setDisabled(disabled);
} else if (child instanceof HtmlInputSecret) {
     ((HtmlInputSecret)child).setDisabled(disabled);
} else if (child instanceof HtmlSelectBooleanCheckbox) {                              ((HtmlSelectBooleanCheckbox)child).setDisabled(disabled);
}Am I overlooking something here or is it just stupidity from the JSF team to not supply a common interface for the editable Html components to provide common methods?
Thank you,
Steven

Answer 1

There is a common interface for editable components. It's called ValueHolder.
You can simplify your code by doing:
   if (child instanceof ValueHolder) {
       child.getAttributes().put("disabled", Boolean.TRUE);
   }The attributes Map call will call through to the java property, if present (if not present, it's stored locally).
Also, it would be appreciated if inflammatory remarks were omitted from future posts. They are not necessary.