Reset TreeTable structure (remove filtering)

Hi,

What is the easiest way to remove the filtering options done on the TreeTable columns so that the Table's structure would go back to how it was before the filtering was done?

Obviously the following is not enough:)

$.each(oPositionSelectionTreeTable.getColumns(), function(i, column) {

   column.setFiltered(false);

   column.setFilterValue("");

});

I probably need to update the table model binding somehow. Not sure how thought.