Urgent help!!!

[gus888]

Hi

I recently got a very boring problem. I use JSF and EJB3. A super entity bean A, and sub entity bean B extends A. When I submit data from JSF page to the B (throug a manage session bean), it works. However, when I submit data from JSF page to the A, I always get the "Error during model data update." errors on each field. I struggled several days, but I still did not get anwser(I am new on EJB). I sincerely appreciate any helps. Thank you in advance.

GUS

============================================
@Entity
@Table(name="a")
@Inheritance(strategy = InheritanceType.JOINED)
public class A implements Serializable {
}

@Entity
@Table(name="b")
@Inheritance(strategy = InheritanceType.JOINED)
public class B extends A {
}

[silviu.marcu]

not enough info ... provide an exception trace or something ...

[chrismalan]

Just maybe this may help.

In your case B is A (has access to all methods and fields of A), but A is not B. A has only access to its own methods and fields. Trying to use methods and access fields of B through A will not work, although the opposite will.

[gus888]

Thank you so much, all.

I just found the bug. I did not define A (new A() in my managed session bean. Since I use jsf, myfaces, myfaces tiles and ejb3, I thought it was very difficult to debug. Now, I just realized I forgot to define the entity bean.

Thanks again for your response and help!

Sheng