Java callback from bpel

Question

As i read somewhere the type of the handle.getResult type is DOM Element...
it gives returns java.lang.ClassCastException
the code is the following.
java.util.Properties props = new java.util.Properties();
props.setProperty("orabpel.platform", "oc4j_10g");
props.setProperty("java.naming.factory.initial", "com.evermind.server.rmi.RMIInitialContextFactory");
props.setProperty("java.naming.provider.url", "ormi://localhost:23791/orabpel");
props.setProperty("java.naming.security.principal", "admin");
props.setProperty("java.naming.security.credentials", "welcome");
com.oracle.bpel.client.Locator locator = new Locator("default","bpel",props);
IInstanceHandle handle = locator.lookupInstance("2");
Object res = handle.getResult();
org.w3c.dom.Element element = (org.w3c.dom.Element)res;
any clues as to how to get the result from an async process?

Answer 1

Hello globo,
if you have a synchronous process you simple use
NormalizedMessage nmRet = deliveryService.request(processName, processMethod, normalizedMessage);
nmRet.getPayload();
And here you have the payload of your return.
For callbacks and values from an asynchronous process have a look at clemens' blog:
http://clemensblog.blogspot.com/2006/04/bpel-implementing-async-callback-with.html
Greets Jens