element identifier url parameter problem

by dk-17 :: Rate this Message:

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hello everyone,

I have a question about crud. I created  a bean and set its identidier as like this in its metadata

addConstraint(new ConstrainedProperty("studentId")
.editable(false)
.identifier(true));

After that what I want to do is to get the bean from the url call so I create an element like that

<submission name="updateStudent">
<bean name="Student" classname=" model.Student"/>
</submission>

Ok and here is my qusetion

the url contains the ...studentId=3&... but the element says the
value for studentId in the  bean from
Student sss = (Student)getNamedSubmissionBean("Student");
is null.

Any idea ..should i have to add a new parameter like dummyId and set the new id in the element. This sems like a workaround?

Thanks
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