@Override
public Command createCommand(HttpServletRequest request,
Workspace workspace) {
String propertyURI = request.getParameter(Arguments.propertyURI.name());
String worksheetId =request.getParameter(Arguments.worksheetId.name());
INTERNAL_NODES_RANGE range = INTERNAL_NODES_RANGE.valueOf(
request.getParameter(Arguments.nodesRange.name()));
return new GetClassesCommand(getNewId(workspace), worksheetId, range, propertyURI);
}