gistfile1.txt

public class StringSomethingTypeConverter extends JeraffTypeConverter<String> {
    @Override
    public String convert(String input, Class<? extends String> targetType, Collection<ValidationError> errors) {
  	if (StringUtils.isBlank(input)) {
			boolean paramSent = getBean().getContext().getRequest().getParameterMap().containsKey(FIELD_NAME)
			if (paramSent) {
			
			} else {
			
			}
		} else {
			return input;
		}
    }
}