class ValuesHKey extends AbstractValuesHolderRow implements HKey {

    @Override
    public void extendWithNull() {
        int columnIndex = -1;
        int segment;
        for (segment = 0; segment < hKeySegments; segment++) {
            columnIndex += keyDepth[segment];
        }
        for (int i = 0; i < keyDepth[segment-1] && columnIndex < values.size() ; columnIndex++, i++) {
            valueAt(columnIndex).putNull();
        }
    }

    public  ValuesHKey(HKeyRowType rowType, TypesRegistryService registry);

}