@Override
    public boolean isRelationalObject(DBSObject object) {
        DBPDataSource dataSource = object.getDataSource();
        return dataSource != null && dataSource.getInfo().supportsReferentialIntegrity();
    }
Saves data in all nested editors
@param monitor progress monitor
plugins/org.jkiss.dbeaver.ui.navigator/src/org/jkiss/dbeaver/ui/editors/entity/EntityEditor.java