Custom JSR 303 validation is not invoked - spring

Question

My custom JSR 303 validation is not getting invoked. Here is my code
my spring config has
<mvc:annotation-driven />
My controller's handler method:
#RequestMapping(value="update", method = RequestMethod.POST ,
consumes="application/json" ,
produces="application/json"))
#ResponseBody
public String update(#Valid #RequestBody MyBean myBean){
return process(myBean);
}
MyBean (annotated with ValidMyBeanRequest):
#ValidMyBeanRequest
public class MyBean {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
ValidMyBeanRequest annotaion:
#Target({ TYPE })
#Retention(RUNTIME)
#Documented
#Constraint(validatedBy = {MyBeanValidator.class})
public #interface ValidMyBeanRequest {
String message() default "{validMyBeanRequest.message}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
MyBeanValidator class:
public class MyBeanValidator implements
ConstraintValidator<ValidMyBeanRequest, MyBean> {
#Override
public void initialize(ValidMyBeanRequest constraintAnnotation) {
// TODO Auto-generated method stub
}
#Override
public boolean isValid(MyBean myBean, ConstraintValidatorContext context) {
boolean isValid = true;
int id = myBean.getId();
if(id == 0){
isValid = false;
}
return isValid;
}
}
My http POST request has below JSON data:
{id:100}
The problem is MyBeanValidator's isValid is not getting invoked. I am using Spring 3.1.0 and HibernateValidator is in classpath.
Please see what I am missing??
Update: Updated handler method to include POST request type and consumes, produces values. Also included my http request with JSON data.

Answer 1

Assuming that you do get model correctly, in this case you are doing everything right, except one thing: you need to handle your validation's result manually.
For achieving this you need to add BindingResult object into list of your handler parameters, and then process validation constraints in the way you would like:
#RequestMapping(value="update")
#ResponseBody
public String update(#Valid #ModelAttribute #RequestBody MyBean myBean, BindingResult result) {
if (result.hasErrors()){
return processErrors(myBean);
}
return process(myBean);
}