Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package kz.validator; import kz.model.Users; import org.springframework.stereotype.Component; import org.springframework.validation.Errors; import org.springframework.validation.ValidationUtils; import org.springframework.validation.Validator; /** * * @author Raiymbet */ @Component public class UserValidation implements Validator { @Override public boolean supports(Class class_type) { return Users.class.isAssignableFrom(class_type); } @Override public void validate(Object o, Errors errors) { ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "error.name", "Name is required"); ValidationUtils.rejectIfEmptyOrWhitespace(errors, "surname", "error.surname", "Surname is required"); ValidationUtils.rejectIfEmptyOrWhitespace(errors, "email", "error.email", "Email is required"); ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", "error.password", "Password is required"); } }