/// <summary>
/// (non-Javadoc)
/// see com.browseengine.bobo.api.FacetIterator#next()
/// </summary>
/// <returns></returns>
public override string Next()
{
if (!HasNext())
{
throw new IndexOutOfRangeException("No more facets in this iteration");
}
ShortIteratorNode node = _queue.Top();
_facet = node.CurFacet;
int next = TermShortList.VALUE_MISSING;
count = 0;
while (HasNext())
{
node = _queue.Top();
next = node.CurFacet;
if ((next != TermShortList.VALUE_MISSING) && (next != _facet))
{
return(Format(_facet));
}
count += node.CurFacetCount;
if (node.Fetch(1))
{
_queue.UpdateTop();
}
else
{
_queue.Pop();
}
}
return(null);
}
