Java EE (Java Enterprise Edition) General Discussion

The problem with a selectBooleanCheckbox is that it will ALWAYS return a value. Thus, if you set it to required, it doesn't matter if it's checked or unchecked, it has returned a value. It would incorrect to assume that setting the required flag to true would mean the checkbox must be checked. What if it's required to be unchecked?

Anyways, the bottom line is that you will have to create a custom validator to ensure that the checkbox is checked (or unchecked, depending on what your requirements might be). However, this is simpler than you might be thinking. Use the validator attribute and a method in your backing bean to perform the check.

Like this:

<h:selectBooleanCheckbox id="myRequiredCheckbox" 
		value="#{backBean.requiredBox}" validator="#{backBean.checked}" />

backBean will have something like the following validator method (this one throws an error if the box isn't checked):

	public void checked(FacesContext context, UIComponent component, 
		Object value) throws ValidatorException {
		
		if (context == null || component == null || value == null) 
			throw new NullPointerException();
		
		Boolean isChecked = (Boolean)value;
		
		if (!isChecked .booleanValue()) {
			FacesMessage msg = new FacesMessage("You must check the box before proceeding.");
			msg.setSeverity(FacesMessage.SEVERITY_ERROR);
			throw new ValidatorException(msg);
		}
		
	}

See, pretty easy eh?


CowKing

Thanks for the help CowKing!