is there any solution for this problem? On Thu, Dec 31, 2009 at 8:46 PM, Kemal Dogan <[email protected]> wrote: > 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") > �[email protected](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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