Binding JComboBox problems

Question

So I'm getting an error when I try to save the changes made from a bound combobox:
Exception Description: Missing mapping for field [GALAXYY.USER_TYPE.id].
Descriptor: RelationalDescriptor(toast.crud.UserType --> [DatabaseTable(GALAXYY.USER_TYPE)])
So I have my combobox bound to a JTable's column and it looks fine when I'm using it. Changes in the combo box are reflected in the jtable, but when I save I get the above error!
Here is a snip from the USER table class....
@JoinColumn(name = "TYPE", referencedColumnName = "ID")
@ManyToOne
private UserType type;The combo box is populated with values from the USER_TYPE table.
Does anyone have any idea what is going on? Let me know if you need information! :) Thanks

Answer 1

Here is the full error:
javax.persistence.RollbackException: Exception [TOPLINK-45] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.DescriptorException
Exception Description: Missing mapping for field [GALAXYY.USER_TYPE.id].
Descriptor: RelationalDescriptor(toast.crud.UserType --> [DatabaseTable(GALAXYY.USER_TYPE)])
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.EntityTransactionImpl.commit(EntityTransactionImpl.java:120)
at oracle.toplink.essentials.internal.ejb.cmp3.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:60)
at toast.crud.UserCRUD.saveButtonActionPerformed(UserCRUD.java:436)
Save Code: (generated by Netbeans)
        try {
            entityManager.getTransaction().commit();
            entityManager.getTransaction().begin();
        } catch (RollbackException rex) {
            int row = this.masterTable.getSelectedRow();
            entityManager.getTransaction().begin();
            List<toast.crud.Users> merged = new ArrayList<toast.crud.Users>(list.size());
            for (toast.crud.Users u : list) {
                merged.add(entityManager.merge(u));
            list.clear();
            list.addAll(merged);
            rex.printStackTrace()
        }Binding Code for ComboBox:
JComboBoxBinding jComboBoxBinding = SwingBindings.createJComboBoxBinding(AutoBinding.UpdateStrategy.READ, userTypeList, positionCombo);
bindingGroup.addBinding(jComboBoxBinding);
binding = Bindings.createAutoBinding(AutoBinding.UpdateStrategy.READ_WRITE, masterTable,
      ELProperty.create("${selectedElement.type}"), positionCombo, BeanProperty.create("selectedItem"));
bindingGroup.addBinding(binding);
binding = Bindings.createAutoBinding(AutoBinding.UpdateStrategy.READ_WRITE, masterTable,
      ELProperty.create("${selectedElement != null}"), positionCombo, BeanProperty.create("enabled"));
bindingGroup.addBinding(binding);Binding Code for the JTable:
binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable,
        org.jdesktop.beansbinding.ELProperty.create("${selectedElement.color}"), colorLabel, org.jdesktop.beansbinding.BeanProperty.create("background"));
binding.setSourceNullValue(new Color(Integer.parseInt(DB.INSTR_COLOR_DEFAULT)));
binding.setSourceUnreadableValue(new Color(Integer.parseInt(DB.INSTR_COLOR_DEFAULT)));
binding.setConverter(intColorConverter1);
bindingGroup.addBinding(binding);Thanks!
Edited by: galaxyy on Jul 22, 2008 8:22 AM
Edited by: galaxyy on Jul 22, 2008 8:24 AM