docs: protected String createDDMFormRuleCondition(DDMForm ddmForm) {
  		String notEmptyStatement = "not(isEmpty(getValue('%s')))";
  
  		List<DDMFormField> ddmFormFields = ddmForm.getDDMFormFields();
  
  		Stream<DDMFormField> stream = ddmFormFields.stream();
  
  		return stream.map(
  			field -> String.format(notEmptyStatement, field.getName())
  		).collect(
  			Collectors.joining(" OR ")
  		);
  	}