ProcessInstanceEvent instanceEvent = (ProcessInstanceEvent) source;
target.setProcessInstanceID(instanceEvent.getProcessInstanceId().toString());
}
//put the data as a property.
Tuple data = new Tuple();
data.setName("data");
data.setValue(getProcessEventAsString(source));
target.addData(data);
// can return null and thus invalidate the event
target = mapping.adoptDetails(target, source);