public override void GetTermFreqVector(int docNumber, String field, TermVectorMapper mapper)
{
if (DEBUG)
{
System.Diagnostics.Debug.WriteLine("MemoryIndexReader.getTermFreqVector");
}
Info info = GetInfo(field);
if (info == null)
{
return;
}
info.SortTerms();
mapper.SetExpectations(field, info.SortedTerms.Length, _index.stride != 1, true);
for (int i = info.SortedTerms.Length; --i >= 0;)
{
ArrayIntList positions = info.SortedTerms[i].Value;
int size = positions.Size();
var offsets = new TermVectorOffsetInfo[size / _index.stride];
for (int k = 0, j = 1; j < size; k++, j += _index.stride)
{
int start = positions.Get(j);
int end = positions.Get(j + 1);
offsets[k] = new TermVectorOffsetInfo(start, end);
}
mapper.Map(info.SortedTerms[i].Key, _index.NumPositions(info.SortedTerms[i].Value), offsets,
(info.SortedTerms[i].Value).ToArray(_index.stride));
}
}
public int[] GetTermFrequencies()
{
int[] freqs = new int[sortedTerms.Length];
for (int i = sortedTerms.Length; --i >= 0;)
{
freqs[i] = _index.NumPositions(sortedTerms[i].Value);
}
return(freqs);
}
public override int DocFreq()
{
if (DEBUG)
{
System.Diagnostics.Debug.WriteLine("TermEnum.docFreq");
}
if (_j >= _index.sortedFields.Length)
{
return(0);
}
Info info = _reader.GetInfo(_j);
if (_i >= info.SortedTerms.Length)
{
return(0);
}
return(_index.NumPositions(info.GetPositions(_i)));
}
