[jboss-user] [EJB 3.0] - NonUniqueObjectException

[Subhash.Bhushan]

Hi,

I am trying to use a OneToMany relationship between my MemberDetail Class and its addresses. Here is the code:

MemberDetail.java:

  | public class MemberDetail implements java.io.Serializable {
  | .
  | .
  | .
  | private Collection<Address> addresses = new ArrayList<Address>();
  | .
  | .
  | .
  | 	@OneToMany(cascade={CascadeType.ALL})	@JoinColumn(name="LINKER_ID")
  | 	public Collection<Address> getAddresses() {
  | 		return addresses;
  | 	}
  | 		public void setAddresses(Collection<Address> addresses) {
  | 		this.addresses = addresses;
  | 	}
  | .
  | .
  | .
  | 

Address.java:

  | public class Address implements java.io.Serializable {
  | .
  | .
  | .
  | private int id;
  | .
  | .
  | .
  | @Id	
  | @Column(name = "ID", unique = true, nullable = false, insertable = true, updatable = true)
  | 	public int getId() {
  | 		return this.id;
  | 	}
  |  	public void setId(int id) {
  | 		this.id = id;
  | 	}
  | .
  | .
  | .
  | 

The Address class does not have any reference to MemberDetail class.

Creating the Member Detail:

  | 	memberDetail.setProfileId(profile.getProfileId());
  | 	memberDetail.setStatus('R');
  | 	memberDetail.setModificationNum(1);
  | 				
  | 	officeAddress.setActive('R');
  | 	officeAddress.setModificationNum(1);
  | 	personalAddress.setActive('R');
  | 	personalAddress.setModificationNum(1);				
  | 	memberDetail.getAddresses().add(officeAddress);
  | 	memberDetail.getAddresses().add(personalAddress);
  | 	try {
  | 	manager.persist(memberDetail);
  | 	return true;
  | 	}catch(Exception exc){
  | 			exc.printStackTrace();
  | 			return false;
  | 		}    
  | 

I get the following error upon persisting:
anonymous wrote : 
  | 19:37:16,671 ERROR [STDERR] javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.justbooks.common.entities.Address#0]
  | 19:37:16,687 ERROR [STDERR] at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:629)
  | 19:37:16,687 ERROR [STDERR] at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:218)
  | 19:37:16,687 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:182)
  | 19:37:16,687 ERROR [STDERR] at com.justbooks.security.activities.ManageProfileBean.createProfile(ManageProfileBean.java:95) 
  | 

I am using EJB 3.0 persistence with J2EE 1.4/J2SE 5. I assume that Address IDs should be autogenerated. I am using MySQL DB and I have marked the field for autogenerate.

I am sure I am doing something wrong, but not able to pinpoint the problem.

Thanks in advance. Any clues are welcome.

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4135556#4135556

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4135556