How to avoid serializing zero values with Simple Xml
- by Bram Vandenbussche
I'm trying to serialise an object using simple xml (http://simple.sourceforge.net/). The object setup is pretty simple:
@Root(name = "order_history")
public class OrderHistory {
@Element(name = "id", required = false)
public int ID;
@Element(name = "id_order_state")
public int StateID;
@Element(name = "id_order")
public int OrderID;
}
The problem is when I create a new instance of this class without an ID:
OrderHistory newhistory = new OrderHistory();
newhistory.OrderID = _orderid;
newhistory.StateID = _stateid;
and I serialize it via simple xml:
StringWriter xml = new StringWriter();
Serializer serializer = new Persister();
serializer.write(newhistory, xml);
it still reads 0 in the resulting xml:
<?xml version='1.0' encoding='UTF-8'?>
<order_history>
<id>0</id>
<id_order>2</id_order>
<id_order_state>8</id_order_state>
</order_history>
I'm guessing the reason for this is that the ID property is not null, since integers can't be null. But I really need to get rid of this node, and I'd rather not remove it manually.
Any clues anyone?
