/// <summary>
/// Advance to non excluded doc.
/// <para/>On entry:
/// <list type="bullet">
/// <item><description>reqScorer != null,</description></item>
/// <item><description>exclScorer != null,</description></item>
/// <item><description>reqScorer was advanced once via Next() or SkipTo()
/// and reqScorer.Doc may still be excluded.</description></item>
/// </list>
/// Advances reqScorer a non excluded required doc, if any. </summary>
/// <returns> <c>true</c> if there is a non excluded required doc. </returns>
private int ToNonExcluded()
{
int exclDoc = exclDisi.DocID;
int reqDoc = reqScorer.DocID; // may be excluded
do
{
if (reqDoc < exclDoc)
{
return(reqDoc); // reqScorer advanced to before exclScorer, ie. not excluded
}
else if (reqDoc > exclDoc)
{
exclDoc = exclDisi.Advance(reqDoc);
if (exclDoc == NO_MORE_DOCS)
{
exclDisi = null; // exhausted, no more exclusions
return(reqDoc);
}
if (exclDoc > reqDoc)
{
return(reqDoc); // not excluded
}
}
} while ((reqDoc = reqScorer.NextDoc()) != NO_MORE_DOCS);
reqScorer = null; // exhausted, nothing left
return(NO_MORE_DOCS);
}
private int AdvanceToNextCommonDoc()
{
for (; ;)
{
if (m_secondaryDoc < m_primaryDoc)
{
m_secondaryDoc = secondary.Advance(m_primaryDoc);
}
else if (m_secondaryDoc == m_primaryDoc)
{
return(m_primaryDoc);
}
else
{
m_primaryDoc = primary.Advance(m_secondaryDoc);
}
}
}
public override Explanation Explain(AtomicReaderContext ir, int i)
{
Explanation inner = weight.Explain(ir, i);
Filter f = outerInstance.filter;
DocIdSet docIdSet = f.GetDocIdSet(ir, ir.AtomicReader.LiveDocs);
DocIdSetIterator docIdSetIterator = docIdSet == null?DocIdSetIterator.GetEmpty() : docIdSet.GetIterator();
if (docIdSetIterator == null)
{
docIdSetIterator = DocIdSetIterator.GetEmpty();
}
if (docIdSetIterator.Advance(i) == i)
{
return(inner);
}
else
{
Explanation result = new Explanation(0.0f, "failure to match filter: " + f.ToString());
result.AddDetail(inner);
return(result);
}
}
public override int Advance(int target)
{
doc = m_innerIter.Advance(target);
if (doc != NO_MORE_DOCS)
{
if (Match(doc))
{
return(doc);
}
else
{
while ((doc = m_innerIter.NextDoc()) != NO_MORE_DOCS)
{
if (Match(doc))
{
return(doc);
}
}
return(doc);
}
}
return(doc);
}
public override int Advance(int target)
{
return(docIdSetIterator.Advance(target));
}