public static Column<vTO, vTO>
createReissueButtonColumn(String columnName) {
   ActionCell<VolunteerTO> reListCell = new ActionCell<VTO>("Reissue",
      new ActionCell.Delegate<VTO>() {
         @Override
         public void execute(VTO object) {
            // code to be executed
         }
      })
      {
         @Override
         public void render(Cell.Context context,VTO value,SafeHtmlBuilder sb) {
            if(null != value.getStatus() && !"".equalsIgnoreCase(value.getStatus())) {
               super.render(context,value,sb);
            }
         }
   };

   Column<VTO, VTO> reListColumn = new Column<VTO, VTO>(reListCell) {
      @Override
      public VTO getValue(VTO object) {
         return object;
      }
   };

   reListColumn.setDataStoreName(columnName);
   reListColumn.setSortable(false);
   return reListColumn;
}

unitTable.addCellPreviewHandler(new Handler<Unit>() {
    @Override
    public void onCellPreview(CellPreviewEvent<Unit> event) {
        if ("click".equals(event.getNativeEvent().getType())) {
            if (event.getColumn() != myTable.getColumnIndex(reListColumn)) {
                // Check some condition. If necessary:
                event.setCanceled(true);
            }
        }
    }
});