Validation Error: Value is not valid in jsf

Question

I am trying to get the integer values into a drop down menu from table called Student_info where student_id is the primary key , in another table student_id is foreign key so I am

<p:selectOneMenu value="#{studentMarksController.studentMarksInfoApp.studentMarksInfoAdd.studentId}" id="student_id" required="true" requiredMessage="Student Id is required" >
    <f:selectItems value="#{studentMarksController.studentMarksInfoApp.findStudentMarksInfoSt_id()}" />
    <f:convertNumber   />
</p:selectOneMenu>

in another table student_id is foreign key so I am using below query to get values from student_info

public List<StudentInfo> findStudentMarksInfoStuId(){
    EntityManager em=getEntityManager();
    try{

        Query query=em.createQuery("SELECT s.studentId FROM StudentInfo s");
        return query.getResultList();
    }finally{
        em.close();
    }

}

the problem here is that in entity class Student_marks_allocation foreign key student_id data type is of object so while inserting its giving error as not a valid number

@JoinColumn(name = "STUDENT_ID", referencedColumnName = "STUDENT_ID")
@ManyToOne(optional = false)
private StudentInfo studentId;

You could create a custom converter for this. – Lukas Eichler Dec 04 '13 at 19:17 — Lukas Eichler, Dec 04 '13 at 19:17

score 0 · Answer 1 · answered Jun 21 '14 at 22:59

0

You will need a converter and equals and hashcode methods in bean Class in your case Student_info

answered Jun 21 '14 at 22:59

S_intg

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That's a very brief answer. How would you implement this solution? – Mark Jun 21 '14 at 23:20

Validation Error: Value is not valid in jsf

1 Answers1