jsr 303 validated all fields in object - json

Question

suppose i hava two view files(jsps) and one class(BudgetControlRegisterDto)
BudgetControlRegisterDto
public class BudgetControlRegisterDto implements Serializable {
#NotNull(message = "{NotNull.java.util.Date}")
private Date demandReceiveDate;
#NotNull(message = "{NotNull.java.util.Date}")
private Date demandOriginalDate;
#NotNull(message = "Start date {NotNull.java.util.Date}")
private Date startDate;
#NotNull(message = "End date {NotNull.java.util.Date}")
private Date endDate;
// setter and getter
}
In one view file i want to validate startDate and endDate
and in other view file i want to validate demandOriginalDate and demandReceiveDate using json ajax. when validation occurs i get validation message for all fields with below code:
controller class's method this is testing code used by both view files(jsps)
#RequestMapping(value = "/addnewdemand.json", method = RequestMethod.POST)
public #ResponseBody BudgetControlRegisterDto addNewDemand(#Valid #ModelAttribute("bcrDto") BudgetControlRegisterDto bcrDto,Errors errors){
log.info("addNewDemand invoked!");
if(errors.hasErrors()) {
log.info("has errors");
bcrDto.setFieldsErrors(errors.getFieldErrors());
return bcrDto;
}
return bcrDto;
}
.js file this is testing code used by both view files(jsps) below code is ajax response code
if(response.fieldsErrors != null) {
html ='<div class="ui-message-error">';
for(var i= 0; i<response.fieldsErrors.length; i++) {
html+='<span>'+response.fieldsErrors[i].defaultMessage+'</span><br/>';
}
html+='</div>';
$("#bcrForm_message").html(html);
}
Question why m i getting validation message of all fields

Answer 1

this is the situation where groups takes place. Here is a good tutorial about them.
The first thing you need to change is to add groups attribute to your #NotNull annotations.
public class BudgetControlRegisterDto implements Serializable {
#NotNull(message = "{NotNull.java.util.Date}",groups={First.class})
private Date demandReceiveDate;
#NotNull(message = "{NotNull.java.util.Date}",groups={First.class})
private Date demandOriginalDate;
#NotNull(message = "Start date {NotNull.java.util.Date}",groups={Second.class})
private Date startDate;
#NotNull(message = "End date {NotNull.java.util.Date}",groups={Second.class})
private Date endDate;
public interface First {};
public interface Second {};
// setter and getter
}
the second one is to change from #Valid to #Validated because #Valid doesn't support validation groups.
controller's method:
#RequestMapping(value = "/addnewdemand.json", method = RequestMethod.POST)
public #ResponseBody BudgetControlRegisterDto addNewDemand(#Validated(BudgetControlRegisterDto.First.class) #ModelAttribute("bcrDto") BudgetControlRegisterDto bcrDto,Errors errors){
log.info("addNewDemand invoked!");
if(errors.hasErrors()) {
log.info("has errors");
bcrDto.setFieldsErrors(errors.getFieldErrors());
return bcrDto;
}
return bcrDto;
}