public override int Advance(int target)
{
//System.out.println("StandardR.D&PE advance seg=" + segment + " target=" + target + " this=" + this);
if ((target - outerInstance.skipInterval) >= doc && limit >= outerInstance.skipMinimum)
{
// There are enough docs in the posting to have
// skip data, and it isn't too close
if (skipper == null)
{
// this is the first time this enum has ever been used for skipping -- do lazy init
skipper = new Lucene40SkipListReader((IndexInput)freqIn.Clone(), outerInstance.maxSkipLevels, outerInstance.skipInterval);
}
if (!skipped)
{
// this is the first time this posting has
// skipped, since reset() was called, so now we
// load the skip data for this posting
//System.out.println(" init skipper freqOffset=" + freqOffset + " skipOffset=" + skipOffset + " vs len=" + freqIn.length());
skipper.Init(freqOffset + skipOffset, freqOffset, proxOffset, limit, storePayloads, storeOffsets);
skipped = true;
}
int newOrd = skipper.SkipTo(target);
if (newOrd > ord)
{
// Skipper moved
ord = newOrd;
doc = accum = skipper.Doc;
freqIn.Seek(skipper.FreqPointer);
lazyProxPointer = skipper.ProxPointer;
posPendingCount = 0;
position = 0;
startOffset = 0;
payloadPending = false;
payloadLength = skipper.PayloadLength;
offsetLength = skipper.OffsetLength;
}
}
// Now, linear scan for the rest:
do
{
NextDoc();
} while (target > doc);
return(doc);
}
private int SkipTo(int target)
{
if ((target - outerInstance.skipInterval) >= m_accum && m_limit >= outerInstance.skipMinimum)
{
// There are enough docs in the posting to have
// skip data, and it isn't too close.
if (skipper == null)
{
// this is the first time this enum has ever been used for skipping -- do lazy init
skipper = new Lucene40SkipListReader((IndexInput)freqIn.Clone(), outerInstance.maxSkipLevels, outerInstance.skipInterval);
}
if (!m_skipped)
{
// this is the first time this posting has
// skipped since reset() was called, so now we
// load the skip data for this posting
skipper.Init(m_freqOffset + m_skipOffset, m_freqOffset, 0, m_limit, m_storePayloads, m_storeOffsets);
m_skipped = true;
}
int newOrd = skipper.SkipTo(target);
if (newOrd > m_ord)
{
// Skipper moved
m_ord = newOrd;
m_accum = skipper.Doc;
freqIn.Seek(skipper.FreqPointer);
}
}
return(ScanTo(target));
}
