public String[] getTableColumns(String name)
  {
      Enumeration enumeration = allTables.elements();
      while(enumeration.hasMoreElements())
      {
          ObjectNode on = (ObjectNode)enumeration.nextElement();
          if(on.getName().equals(name))
          {
              ObjectNode[] oa= on.children();
              if(oa != null)
              {
                  String[] ret = new String[oa.length];
                  for(int i = 0; i < ret.length; i++)
                      ret[i] = oa[i].getName();

                 return ret;
              }
          }
      }

      return null;
  }