@Override
        public boolean hasChildren(Object element) {
            if (groupingColumn != null) {
                return element instanceof ObjectsGroupingWrapper;
            }
            return false;
        }
Searcher. Filters elements by name and description
plugins/org.jkiss.dbeaver.ui.navigator/src/org/jkiss/dbeaver/ui/navigator/itemlist/ObjectListControl.java