internal override void AddTerm(int termID)
{
Debug.Assert(DocState.TestPoint("TermVectorsTermsWriterPerField.addTerm start"));
TermVectorsPostingsArray postings = (TermVectorsPostingsArray)TermsHashPerField.PostingsArray;
postings.Freqs[termID]++;
WriteProx(postings, termID);
}