// Invoke the MultipleValueEditColumnCommand
JSONArray multiCellEditInput = getMultiCellValueEditInputJSON(transformedRows, newHNodeId);
MultipleValueEditColumnCommandFactory mfc = (MultipleValueEditColumnCommandFactory)
ctrl.getCommandFactoryMap().get(MultipleValueEditColumnCommand.class.getSimpleName());
MultipleValueEditColumnCommand mvecc = (MultipleValueEditColumnCommand) mfc.createCommand(multiCellEditInput, workspace);
mvecc.doIt(workspace);
} catch (Exception e) {
logger.error("Error occured during python transformation.",e);
return new UpdateContainer(new ErrorUpdate("Error occured while applying Python transformation to the column."));
}