SeriesGrouping grp = sd.getGrouping(); if (grp == null) { grp = DataFactory.eINSTANCE.createSeriesGrouping(); sd.setGrouping(grp); } return grp;
return sd.getGrouping();
    private SeriesGrouping getGrouping()    {        SeriesGrouping grp = sd.getGrouping();        if (grp == null)        {            grp = DataFactory.eINSTANCE.createSeriesGrouping();            sd.setGrouping(grp);        }        return grp;    }