if (columnIndex == OLDNAME_PROP) return tuple.oldName;
		public String getColumnText(Object element, int columnIndex){			ParameterInfo tuple= (ParameterInfo)element;			if (columnIndex == TYPE_PROP)				return Signature.toString(tuple.typeName);			if (columnIndex == OLDNAME_PROP)				return tuple.oldName;			if (columnIndex == NEWNAME_PROP)				return tuple.newName;			Assert.isTrue(false);			return ""; //$NON-NLS-1$		}