/**
* {@inheritDoc}
*
* <p>Overridden - that is completely new implementation - to get first/next SortOrder from sort
* order cycle. Does nothing if the cycle is empty.
*/
@Override
public void toggleSortOrder(int column) {
checkColumn(column);
if (!isSortable(column)) return;
SortOrder firstInCycle = getFirstInCycle();
// nothing to toggle through
if (firstInCycle == null) return;
List<SortKey> keys = new ArrayList<SortKey>(getSortKeys());
SortKey sortKey = SortUtils.getFirstSortKeyForColumn(keys, column);
if (keys.indexOf(sortKey) == 0) {
// primary key: in this case we'll use next sortorder in cylce
keys.set(0, new SortKey(column, getNextInCycle(sortKey.getSortOrder())));
} else {
// all others: make primary with first sortOrder in cycle
keys.remove(sortKey);
keys.add(0, new SortKey(column, getFirstInCycle()));
}
if (keys.size() > getMaxSortKeys()) {
keys = keys.subList(0, getMaxSortKeys());
}
setSortKeys(keys);
}
/**
* {@inheritDoc}
*
* <p>
*/
@Override
public SortOrder getSortOrder(int column) {
SortKey key = SortUtils.getFirstSortKeyForColumn(getSortKeys(), column);
return key != null ? key.getSortOrder() : SortOrder.UNSORTED;
}