Issue on Validation using regex on validator class of spring - regex

Question

My requirement is that i want validation on my form field i m doing so using spring validator class and regex so what i m doing here, i am validating my DepartmentNamefield which is in String contains no numeric value any where. This validation i m performing using regex expression [0-9] because if it contains any numeric value then matcher.find() return true if it return true i am throwing error message .So problem i am facing is that when i am providing the string with non numeric value validation is done but if i m providing the pure string then still its throwing same message if i run the application again with providing pure String value then its working, but if again i am providing wrong entry ,validation is happening but after that if m providing the correct entry the same message throw so every time i need to run my application please resolve this issue
here is my validator class
package com.ankur.tutorial.validator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.validation.Errors;
import org.springframework.validation.Validator;
import com.nousinfo.tutorial.service.model.DepartmentBO;
public class DepartmentValidator implements Validator {
boolean found = false;
public boolean supports(Class<?> arg0) {
return DepartmentBO.class.isAssignableFrom(arg0);
}
public void validate(Object object, Errors errors) {
DepartmentBO departmentBO = (DepartmentBO) (object);
System.out.println(departmentBO.getDepartmentName());
if (departmentBO.getDepartmentName().equals("")) {
errors.rejectValue("departmentName", "department.Name");
} else {
Pattern pattern = Pattern.compile("[0-9]");
Matcher matcher = pattern.matcher(departmentBO.getDepartmentName());
while (matcher.find()) {
found = true;
}
System.out.println(found);
if (found) {
errors.rejectValue("departmentName", "department.string");
}
}
}
}
this is my controller
package com.nousinfo.tutorial.controllers;
import java.util.Map;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.nousinfo.tutorial.model.DepartmentForm;
import com.nousinfo.tutorial.service.impl.DepartmentServiceImpl;
import com.nousinfo.tutorial.service.model.DepartmentBO;
import com.nousinfo.tutorial.validator.DepartmentValidator;
#Controller
#RequestMapping("departmentController")
public class DepartmentController {
private DepartmentServiceImpl departmentServiceImpl;
private DepartmentValidator departmentValidator;
public DepartmentServiceImpl getDepartmentServiceImpl() {
return departmentServiceImpl;
}
public void setDepartmentServiceImpl(
DepartmentServiceImpl departmentServiceImpl) {
this.departmentServiceImpl = departmentServiceImpl;
}
public DepartmentValidator getDepartmentValidator() {
return departmentValidator;
}
public void setDepartmentValidator(DepartmentValidator departmentValidator) {
this.departmentValidator = departmentValidator;
}
/**
* Set to set the view
*
* #param model
* #return
* #throws Exception
*/
#RequestMapping(value = "/departmentForm", method = RequestMethod.GET)
public String view(Model model) throws Exception {
DepartmentBO departmentBO = new DepartmentBO();
model.addAttribute("departmentBO", departmentBO);
return "departmentForm";
}
/**
* Create the department
*
* #param departmentForm
* #param bindingResult
* #param model
* #return
* #throws Exception
*/
#RequestMapping(value = "/createDepartment", method = RequestMethod.POST)
public ModelAndView createEmployee(
#ModelAttribute("departmentBO") DepartmentBO departmentBO,
BindingResult bindingResult) throws Exception {
ModelAndView modelAndView = new ModelAndView();
departmentValidator.validate(departmentBO, bindingResult);
if (bindingResult.hasErrors()) {
modelAndView.setViewName("departmentForm");
return modelAndView;
}
modelAndView.addObject("departmentBO", departmentBO);
if (departmentBO.getUpdateStatus() == 'A') {
boolean flag = departmentServiceImpl.actionDecider(departmentBO);
if (flag == false)
modelAndView.setViewName("DBError");
else
modelAndView.setViewName("Success");
}
return modelAndView;
}

Answer 1

You have the variable found as a class property. Validators are singleton. Move the variable found inside the validate method.