Hi
I have just started using JIBX and have a query.
I have 2 classes which share a parent-child one-to-many relation. For
displaying purposes, I get a list of all children (in general, not specific
to a parent) and also the parent info for each child. Now I pass each child
object to convert to xml. But while converting the child object, I also want
the parent to be converted to xml.
The binding info is given below :
*Child object binding:*
<mapping class="com.redbus.homedelivery.orm.OrderTb" name="orderTb">
<value style="element" name="order-id" field="orderId"/>
<structure field="customer"/> - This is the parent object
</mapping>
*Parent object binding*:
<mapping class="com.redbus.homedelivery.orm.Customer" name="customer">
<value style="element" name="customer-id" field="customerId"/>
<collection field="orders"
item-type="com.redbus.homedelivery.orm.OrderTb"/> - This is the child
object.
</mapping>
While using this binding, I get a null pointer exception in the parent
object.
----------------------------------------------------------------------------------------------------------------
Caused by: java.lang.NullPointerException
at
com.redbus.homedelivery.orm.Customer.JiBX_HomeDelivery_jibx_binding_binding_marshal_1_0(Customer.java)
at
com.redbus.homedelivery.orm.JiBX_HomeDelivery_jibx_binding_bindingCustomer_access.marshal()
at
com.redbus.homedelivery.orm.OrderTb.JiBX_HomeDelivery_jibx_binding_binding_marshal_1_0(OrderTb.java)
at
com.redbus.homedelivery.orm.JiBX_HomeDelivery_jibx_binding_bindingOrderTb_access.marshal()
at com.redbus.homedelivery.orm.OrderTb.marshal(OrderTb.java)
at
org.jibx.runtime.impl.MarshallingContext.marshalRoot(MarshallingContext.java:1041)
at
org.jibx.runtime.impl.MarshallingContext.marshalDocument(MarshallingContext.java:1111)
at com.redbus.homedelivery.common.XMLUtils.getXML(XMLUtils.java:27)
----------------------------------------------------------------------------------------------------------------
The code to perform the conversion is given below :
public static String getXML(Object obj) {
String xml = "";
try {
IBindingFactory bfact;
bfact = BindingDirectory.getFactory(obj.getClass());
// marshal root object back out to document in memory
IMarshallingContext mctx = bfact.createMarshallingContext();
mctx.setIndent(2);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
mctx.marshalDocument(obj, "UTF-8", null, bos);
xml = new String(bos.toByteArray(),"UTF-8");
} catch (Exception e) {
throw new MarshallingException("Unable to marshal from the
object " + obj, e);
}
return xml;
}
I pass the child object to this method and want the parent to be also
included in the final xml. The child object has the parent reference loaded
properly.
Any help is greatly appreciated.
Regds
Sundeep
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
jibx-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/jibx-users
