public override sealed int NextDoc()
{
if (_queue.Size() == 0)
{
return(NO_MORE_DOCS);
}
// TODO: move this init into positions(): if the search
// doesn't need the positions for this doc then don't
// waste CPU merging them:
_posList.Clear();
_doc = _queue.Top().DocID();
// merge sort all positions together
DocsAndPositionsEnum postings;
do
{
postings = _queue.Top();
int freq = postings.Freq();
for (int i = 0; i < freq; i++)
{
_posList.Add(postings.NextPosition());
}
if (postings.NextDoc() != NO_MORE_DOCS)
{
_queue.UpdateTop();
}
else
{
_queue.Pop();
}
} while (_queue.Size() > 0 && _queue.Top().DocID() == _doc);
_posList.Sort();
_freq = _posList.Size();
return(_doc);
}
public bool Next()
{
if (_termPositionsQueue.Size() == 0)
{
return(false);
}
_posList.Clear();
_doc = _termPositionsQueue.Peek().Doc();
TermPositions tp;
do
{
tp = _termPositionsQueue.Peek();
for (int i = 0; i < tp.Freq(); i++)
{
_posList.Add(tp.NextPosition());
}
if (tp.Next())
{
_termPositionsQueue.AdjustTop();
}
else
{
_termPositionsQueue.Pop();
tp.Close();
}
}while (_termPositionsQueue.Size() > 0 && _termPositionsQueue.Peek().Doc() == _doc);
_posList.Sort();
_freq = _posList.Size();
return(true);
}