private static void unmarshal() throws JAXBException, FileNotFoundException {
		JAXBContext context = JAXBContext.newInstance(AtomicValidator.class, UnaryLogicalNotOperator.class,
				BinaryLogicalAndOperator.class, BinaryLogicalOrOperator.class, BinaryEqualsOperator.class, BinaryValidator.class);
		System.out.println("Output from our XML File: ");
		Unmarshaller um = context.createUnmarshaller();
		Validator binValidator = (Validator) um.unmarshal(new FileReader("validator.xml"));
		Employee_ToBeRemoved emp = new Employee_ToBeRemoved();
		emp.setId(3);
		emp.setName("gaurav");
		//emp.setDateOfJoining(new Date());
		System.out.println(binValidator.validate(emp));
	}