Need to throw error when fractions or separator characters are used

Question

I have an InputText component wired to a Bean property of int type. However, I\'m forced to use NumberConverter only

Even when I specify

Answer 1

Create a custom converter extending the default NumberConverter wherein you check the string value before delegating to the NumberConverter and then use it instead.

public class MyNumberConverter extends NumberConverter {

    public MyNumberConverter() {
        setIntegerOnly(true);
    }

    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String submittedValue) {
        if (submittedValue != null && !submittedValue.matches("[0-9]+")) {
            throw new ConverterException("Please enter digits only");
        }

        return super.getAsObject(context, component, submittedValue);
    }

}

<f:converter converterId="myNumberConverter" />