Row not populating after drag and drop

Vaadin 6 / 7 / 8
1

I currently have a table which most of the columns contain complex objects. When I drag the row, a new row is created in the correct location but the data is not displayed. Is there something that has to be done when the columns contain complex objects instead of primitive objects? My drop method is as follows:

public void drop(DragAndDropEvent event) {
System.out.println(“DragAndDropEvent”);
DataBoundTransferable transferable = (DataBoundTransferable) event.getTransferable();
Object sourceRow = transferable.getItemId();

            AbstractSelect.AbstractSelectTargetDetails dropData = ((AbstractSelect.AbstractSelectTargetDetails) event
                    .getTargetDetails());
            Object targetRow = dropData.getItemIdOver();

            // Don't move if source and target are the same, or there is no
            // target
            if ((sourceRow == targetRow) || (targetRow == null)) {
                return;
            }
            
            // Remove the source of the drag so we can add it back where
            // requested
            table.removeItem(sourceRow);

            // Check if the drop location is somewhere below the row ...
            if (dropData.getDropLocation() == VerticalDropLocation.BOTTOM) {
                try {
                    table.addItemAfter(targetRow, sourceRow);
                } catch( UnsupportedOperationException uoe) {
                    uoe.printStackTrace();
                }
            }
            // ... or somewhere in the middle or above
            else {
                Object rowAbove = table.prevItemId(targetRow);
                table.addItemAfter(rowAbove, sourceRow);
            }
        }
2

So it seems that you don’t do it this way. Even though table has the ability to do a drag and drop you pretty much have to code it yourself using clone. No idea why it is this way. There should be a method like moveAfter in TreeTable.

3

Since clone is potentially going to go away is there another recommendation for this?