hi,
I have two entity with owned relation. Order is master entity and
OrderItem is child entity.
When I have to persist Order without OrderItem, but
it gives an exception (javax.jdo.JDOException: Unexpected error during
precommit) at commit line.
But if I add an OrderItem instance to orderItemChilds, then it works.
My sample code is at below, how can I solve this problem.
Please help.
Kemal Dogan.
-----------------------------------------------
My Codes:
Master Entity:
@PersistenceCapable(identityType = IdentityType.APPLICATION, table =
"T_Order", detachable = "true")
@Inheritance(customStrategy = "complete-table")
public class Order extends MasterEntityImpl {
@Persistent(mappedBy = "order")
@Element(dependent = "true")
@javax.jdo.annotations.Order(extensions = @Extension(vendorName =
"datanucleus", key = "list-ordering", value = "pk asc"))
private List<OrderItem> orderItemChilds = new ArrayList();
...
Child Entity:
@PersistenceCapable(identityType = IdentityType.APPLICATION, table =
"T_OrderItem", detachable = "true")
public class OrderItem extends ChildEntityImpl<Order> {
@Persistent
private Order order;
...
DAO code:
public void test_With_ERROR() {
OrderDAO orderDAO = DAOFactory.getInstance().getOrderDAO();
Order order= new Order();
orderDAO.persist(order);
}
public void test_With_NO_ERROR() {
OrderDAO orderDAO = DAOFactory.getInstance().getOrderDAO();
Order order= new Order();
List<OrderItem> orderItems= (List<OrderItem>)
order.getOrderItemChilds();
OrderItem item= new OrderItem();
orderItems.add(item);
orderDAO.persist(order);
}
.....
Other abtract classes.
@PersistenceCapable(identityType = IdentityType.APPLICATION,
detachable = "true")
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class MasterEntityImpl implements MasterEntity<Key> {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY, column = "F_PK")
private Key pk;
...
@PersistenceCapable(identityType = IdentityType.APPLICATION,
detachable = "true")
@Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
public abstract class ChildEntityImpl<T extends MasterEntity>
implements ChildEntity<T,Key> {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY, column = "F_PK")
private Key pk;
...
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