Logging.defaultLogger().debug("Received DetailRequest");
  public void execute(EnvelopeTuple o, Collection changes) {    Object obj = o.getObject();    if (obj instanceof DetailRequest) {      //System.out.println("DetailRequestLP: received DetailRequest");      DetailRequest ir = (DetailRequest) obj;      if (o.isAdd()) {        processDetailRequestAdded(ir);      } else if (o.isRemove()) {	// no-nop      }    } else if (obj instanceof QueryRequest) {      QueryRequest qr = (QueryRequest) obj;      if (o.isAdd()) {	processQueryRequestAdded(qr);      } else if (o.isRemove()) {	// no-op      }    }  }