@Override public Command createCommand(HttpServletRequest request, Workspace workspace) { String worksheetId = request.getParameter(Arguments.worksheetId.name()); String alignmentNodeId = request.getParameter(Arguments.alignmentNodeId.name()); String tripleStoreUrl = request.getParameter(Arguments.tripleStoreUrl.name()); String graphUrl = request.getParameter(Arguments.graphUrl.name()); String nodeId = request.getParameter(Arguments.nodeId.name()); String selectionName = request.getParameter(Arguments.selectionName.name()); return new FetchColumnCommand(getNewId(workspace), Command.NEW_MODEL, worksheetId, alignmentNodeId, tripleStoreUrl, graphUrl, nodeId, selectionName); }