formatter.encode(del, getData());
try { formatter.encode(del, getData()); } catch (Throwable err) { if (err instanceof ThreadDeath) throw (ThreadDeath) err; del.setErrorReport(err); }
    public void pushUpdate () {      System.out.println("Updating session to agg: " + queryId);      UpdateDelta del = new UpdateDelta(        getBindingSite().getAgentIdentifier().toString(), queryId, key);      formatter.encode(del, getData());      sendMessage(createAggAddress(requester), del.toXml());    }