public override int FetchDoc(int targetDoc)
{
if (_curDoc == DocIdSetIterator.NO_MORE_DOCS)
{
return(_curDoc);
}
if (targetDoc <= _curDoc)
{
targetDoc = _curDoc + 1;
}
_curSec = -1;
SectionSearchQueryPlan node = (SectionSearchQueryPlan)_pq.Top();
while (true)
{
if (node.DocId < targetDoc)
{
if (node.FetchDoc(targetDoc) < DocIdSetIterator.NO_MORE_DOCS)
{
node = (SectionSearchQueryPlan)_pq.UpdateTop();
}
else
{
_pq.Pop();
if (_pq.Size() <= 0)
{
_curDoc = DocIdSetIterator.NO_MORE_DOCS;
return(_curDoc);
}
node = (SectionSearchQueryPlan)_pq.Top();
}
}
else
{
_curDoc = node.DocId;
return(_curDoc);
}
}
}
