code: @Override
      public void in() throws Exception {
          if (data == null) {
              throw new ComponentException("Not connected: " + toString());
          }
          Object val = data;
          // fire only if there is a listener
  //        if (ens.shouldFire()) {
  //            DataflowEvent e = new DataflowEvent(ens.getController(), this, val);
  ////            DataflowEvent e = new DataflowEvent(ens.getController(), this, access.toObject());
  //            ens.fireIn(e);
  //            // the value might be altered
  //            val = e.getValue();
  //        }
  
  //        access.pass((Access) val);
          fa.setFieldValue(val);
      }
docs: a field is receiving a new value (in)
  
  @throws java.lang.Exception