[castor-user] [XML] Does Castor support bidirectional aggregations?

[Vahan Harput]

Hi,

I would like to know whether Castor can marshal/unmarshal objects which are
connected through a bidirectional aggregation relationship. Consider these
two classes:

public class Order {

    java.util.Set items; // Items of these order

    public void setItems (Set items)
    {
        this.items = items;
    }

    public Set getItems()
    {
        return items;
    }
}

public class Item {

    Order order; // The order this item belongs to

    public void setOrder (Order order)
    {
        this.order = order;
    }

    public Order getOrder()
    {
        return order;
    }
}

My mapping file looks like this:

<mapping>
    <class name="Order" auto-complete="true">
        <field name="items" type="Item" collection="set">
        </field>
    </class>

    <class name="Item" auto-complete="true">
        <field name="order" type="Order">
        </field>
    </class>
</mapping>

The following test case fails with "Process exited with code 128":

Order ord = new Order();

Item item1 = new Item();
Item item2 = new Item();

Set items = new HashSet();

items.add(item1);
items.add(item2);

ord.setItems(items);

item1.setOrder(ord);
item2.setOrder(ord);

Mapping mapping = new Mapping();
mapping.loadMapping("castor-mapping.xml");

FileWriter writer = new FileWriter("order.xml");

Marshaller marshaller = new Marshaller(writer);
marshaller.setMapping(mapping);

marshaller.marshal(ord);


Any ideas what the problem is?

Regards,

Vahan Harput



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