Sortable tables dataTable and commandSortHeader

[Sasa Milosavljevic]

I need to render different title on commandSortHeader link regarding
is it current  column equal to sort column. So I need to check for
every header something like this  commandSortHeader.columnName ==
sortColumn. I suppose i can find component via context , perform
conversion and check condition, but I am not sure is this the best way
to do that?
Thanks in advance.
Sasha