public TVTerms(Lucene3xTermVectorsReader outerInstance, long tvfFP)
{
this.outerInstance = outerInstance;
outerInstance.tvf.Seek(tvfFP);
numTerms = outerInstance.tvf.ReadVInt32();
byte bits = outerInstance.tvf.ReadByte();
storePositions = (bits & STORE_POSITIONS_WITH_TERMVECTOR) != 0;
storeOffsets = (bits & STORE_OFFSET_WITH_TERMVECTOR) != 0;
tvfFPStart = outerInstance.tvf.GetFilePointer();
unicodeSortOrder = outerInstance.SortTermsByUnicode();
}
public TVFields(Lucene3xTermVectorsReader outerInstance, int docID)
{
this.outerInstance = outerInstance;
outerInstance.SeekTvx(docID);
outerInstance.tvd.Seek(outerInstance.tvx.ReadInt64());
int fieldCount = outerInstance.tvd.ReadVInt32();
if (Debugging.AssertsEnabled)
{
Debugging.Assert(fieldCount >= 0);
}
if (fieldCount != 0)
{
fieldNumbers = new int[fieldCount];
fieldFPs = new long[fieldCount];
for (int fieldUpto = 0; fieldUpto < fieldCount; fieldUpto++)
{
int fieldNumber = outerInstance.tvd.ReadVInt32();
fieldNumbers[fieldUpto] = fieldNumber;
fieldNumberToIndex[fieldNumber] = fieldUpto;
}
long position = outerInstance.tvx.ReadInt64();
fieldFPs[0] = position;
for (int fieldUpto = 1; fieldUpto < fieldCount; fieldUpto++)
{
position += outerInstance.tvd.ReadVInt64();
fieldFPs[fieldUpto] = position;
}
}
else
{
// TODO: we can improve writer here, eg write 0 into
// tvx file, so we know on first read from tvx that
// this doc has no TVs
fieldNumbers = null;
fieldFPs = null;
}
}
// NOTE: tvf is pre-positioned by caller
public TVTermsEnum(Lucene3xTermVectorsReader outerInstance)
{
this.outerInstance = outerInstance;
this.origTVF = outerInstance.tvf;
tvf = (IndexInput)origTVF.Clone();
}