Play! 1.2.5 with mongodb | Model Validation not happening - mongodb

Question

I have a simple User model whose fields are annotated with play validation annotations and morphia annotations like below.
import play.data.validation.*;
import play.modules.morphia.Model;
import com.google.code.morphia.annotations.*;
#Entity
public class User extends Model{
#Id
#Indexed(name="USERID", unique=true)
public ObjectId userId;
#Required public String userName;
#Email
#Indexed(name="USEREMAIL", unique=true)
#Required public String userEmail;
}
Now I have a service which has a CreateNewUser method responsible for persisting the data. I have used Morphia plugin for the dao support. But the problem is that User Document gets persisted in mongo-db even if userName or userEmail is NULL. Also #Email validation does not happen
// Below code is in app/controllers/Application.java
User a = new User();
a.userName = "user1";
// calling bean to create user, userService is in app/service/UserService
userService.createNewUser(a);
It does not work even after adding #valid and validation.hasErrors() check.Below code is in app/service/UserService
public void createNewUser(#Valid User user) {
if (Validation.hasErrors()) {
System.out.println("has errors");
} else {
// TODO Auto-generated method stub
userDao.save(user);
}
}

Answer 1

Now I understand, createNewUser is not an action.
So you can enforce object validation:
public void createNewUser(User user) {
final Validation.ValidationResult validationResult = validation.valid(user);
if (validationResult.ok) {
userDao.save(user);
} else {
System.out.println("has errors");
}
}
api: http://www.playframework.org/documentation/api/1.2.5/play/data/validation/Validation.html
Old answer
You forgot an annotation to validate the object and you must check if the form has errors.
public void createNewUser(#Valid User user) {
if(validation.hasErrors()) ...
source: http://www.playframework.org/documentation/1.2.5/validation#objects