public override bool Next()
{
if (firstTime)
{
more = spans.Next();
firstTime = false;
}
if (!more)
{
return(false);
}
freq = 0.0f;
doc = spans.Doc();
while (more && doc == spans.Doc())
{
int matchLength = spans.End() - spans.Start();
freq += GetSimilarity().SloppyFreq(matchLength);
more = spans.Next();
}
return(more || freq != 0.0f);
}
public virtual bool Next()
{
if (moreInclude)
{
// move to next include
moreInclude = includeSpans.Next();
}
while (moreInclude && moreExclude)
{
if (includeSpans.Doc() > excludeSpans.Doc())
{
// skip exclude
moreExclude = excludeSpans.SkipTo(includeSpans.Doc());
}
while (moreExclude && includeSpans.Doc() == excludeSpans.Doc() && excludeSpans.End() <= includeSpans.Start())
{
moreExclude = excludeSpans.Next(); // increment exclude
}
if (!moreExclude || includeSpans.Doc() != excludeSpans.Doc() || includeSpans.End() <= excludeSpans.Start())
{
break; // we found a match
}
moreInclude = includeSpans.Next(); // intersected: keep scanning
}
return(moreInclude);
}
public override int Advance(int target)
{
if (!more)
{
return(doc = NO_MORE_DOCS);
}
if (spans.Doc() < target)
{
// setFreqCurrentDoc() leaves spans.doc() ahead
more = spans.SkipTo(target);
}
if (!SetFreqCurrentDoc())
{
doc = NO_MORE_DOCS;
}
return(doc);
}
public override bool LessThan(System.Object o1, System.Object o2)
{
Spans spans1 = (Spans)o1;
Spans spans2 = (Spans)o2;
if (spans1.Doc() == spans2.Doc())
{
if (spans1.Start() == spans2.Start())
{
return(spans1.End() < spans2.End());
}
else
{
return(spans1.Start() < spans2.Start());
}
}
else
{
return(spans1.Doc() < spans2.Doc());
}
}
//
protected internal override bool SetFreqCurrentDoc()
{
if (!More)
{
return(false);
}
Doc = Spans.Doc();
Freq_Renamed = 0.0f;
PayloadScore = 0;
PayloadsSeen = 0;
do
{
int matchLength = Spans.End() - Spans.Start();
Freq_Renamed += DocScorer.ComputeSlopFactor(matchLength);
Spans[] spansArr = new Spans[1];
spansArr[0] = Spans;
GetPayloads(spansArr);
More = Spans.Next();
} while (More && (Doc == Spans.Doc()));
return(true);
}
protected internal override bool SetFreqCurrentDoc()
{
if (!More)
{
return(false);
}
Doc = Spans.Doc();
Freq_Renamed = 0.0f;
NumMatches = 0;
PayloadScore_Renamed = 0;
PayloadsSeen = 0;
while (More && Doc == Spans.Doc())
{
int matchLength = Spans.End() - Spans.Start();
Freq_Renamed += DocScorer.ComputeSlopFactor(matchLength);
NumMatches++;
ProcessPayload(OuterInstance.Similarity);
More = Spans.Next(); // this moves positions to the next match in this
// document
}
return(More || (Freq_Renamed != 0));
}
public virtual int Doc()
{
return(spans.Doc());
}