Hi,
I have recently read an article on the IBM developerWorks website
(http://www.ibm.com/developerworks/library/x-xmlbeanse/index.html )
that describes how to use interface extensions to utilize events within
XMLBeans. I am able to register event listeners, fire events, and do
everything else they describe in the article but I am having a problem
where I set one XmlObject to another through use of the
XmlObject::set(XmlObject arg) method which does not execute my preSet()
and postSet() methods.
This is an example using the PurchaseOrderDocument example found on the
XMLBeans tutorial page:
public static void main(String[] args){
PurchaseOrder po_one =
PurchaseOrderDocument.PurchaseOrder.Factory.newInstance();
po_one.addModelChangeListener(new IModelChangeListener(){
public void modelChange(ModelChangeEvent evt){
System.err.println("EVENT");
}
});
PurchaseOrder po_two =
PurchaseOrderDocument.PurchaseOrder.Factory.newInstance();
po_one.addNewCustomer(); // prints "EVENT" on stderr
po_one.set(po_two); // does not print anything
po_one.addNewCustomer(); // prints "EVENT" on stderr
}
I am using an extremely stripped down version of the code on the IBM's
website for the static implementation files so that my preSet and
postSet methods basically do this:
public static boolean preSet(...){
return true;
}
public static void postSet(XmlObject xo, ...){
((IModelChangeListener)xo).fireModelChangeEvent(new
ModelChangeEvent(...));
return;
}
Is this happening because po_one.set(po_two) isn't really changing
anything about po_one except what it's pointing to in memory?
Thank you,
Bryan Worrell
__
Bryan Worrell
The MITRE Corporation
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