public int compare(final ParentStep p1, final ParentStep p2) {
        return p1.getParent().getLine().compareTo(p2.getParent().getLine());
    }
public int compare ( final ParentStep p1 , final ParentStep p2 ) { return p1 . getParent ( ) . getLine ( ) . compareTo ( p2 . getParent ( ) . getLine ( ) ) ; }
{@inheritDoc}