code: public void onStartServiceEvent(
  			javax.slee.serviceactivity.ServiceStartedEvent event,
  			ActivityContextInterface aci) {
  
  		try {
  			XDMClientChildSbbLocalObject child = (XDMClientChildSbbLocalObject) this
  					.getXDMClientChildSbbChildRelation().create(ChildRelationExt.DEFAULT_CHILD_NAME);
  			String[] resourceURIS = new String[] { getDocumentSelector() };
  			// String aserted = null;
  			// subscribe to changes - before doc is created.
  			// assume we are bound to the same localhost.
  			// from/to must match
  			child.subscribe(user, user, 60, resourceURIS);
  		} catch (Exception e) {
  			tracer.severe("failed to subscribe changes to doc", e);
  		}
  	}
docs: ------------------ events -------------------