Duplicate property error

henryedsl · **Joined:** Fri Aug 07, 2009 9:21 am **Posts:** 4

Hello!

First of all excuse me for my english, it's not very good.

I have a super class named say A with the @MappedSuperclass annotation, and i have a class named say B which extends A.

In class A i have defined a field named profession, which returns a Person, it's as follows:

Code:

@MappedSuperclass
public class A { 
 
@JoinColumn(name="profession") 
@ManyToOne(optional=false)  
private Person profession; 
 
public Person getProfession() { 
return profession; 
} 
 
} 

In class B, which extends A, i need to overwrite field profession so it returns a Doctor instead a Person, as follows:

Code:

public class B extends A { 
@JoinColumn(name="profession") 
@ManyToOne(optional=false)  
private Doctor profession; 
 
public Doctor getProfession() { 
return profession; 
} 
 
} 

As you can imagine, Doctor extends Person.

So far so good, the problem appears when i run my application, i get a message in my Tomcat logs saying:

Quote:

Caused by: org.hibernate.MappingException: Duplicate property mapping of profession found in org.admon.db.bienes.modelo.DesincorporacionInmuebles

It is like i can not overwrite a field defined in the super class, because it says i have a duplicate property.

Am i doing something wrong?

I hope i was clear, and again, sorry if my english is not that good.

Thanks in advance for your time.
Regards!

Cameron McKenzie · **Posted:** Wed Aug 12, 2009 9:21 am

You've got the same variable name in two classes. You'll need to give the property a different mechanism for mapping it to a database row with a different name.