Examples of org.apache.lucene.index.TermState

org.apache.lucene.index.TermState
Encapsulates all required internal state to position the associated {@link TermsEnum} without re-seeking. @see TermsEnum#seekExact(org.apache.lucene.util.BytesRef,TermState) @see TermsEnum#termState() @lucene.experimental

          fieldTerm.term = target;
          // TODO: should we differentiate "frozen"
          // TermState (ie one that was cloned and
          // cached/returned by termState()) from the
          // malleable (primary) one?
          final TermState cachedState = termsCache.get(fieldTerm);
          if (cachedState != null) {
            seekPending = true;
            //System.out.println("  cached!");
            seekExact(target, cachedState);
            //System.out.println("  term=" + term.utf8ToString());

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      @Override
      public TermState termState() throws IOException {
        //System.out.println("BTR.termState this=" + this);
        decodeMetaData();
        TermState ts = state.clone();
        //System.out.println("  return ts=" + ts);
        return ts;
      }

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          // coarse -- this overcounts since a given doc can
          // have more than one term:
          docFreq = 0;
          for(int termIdx=0;termIdx<terms.length;termIdx++) {
            final Term term = terms[termIdx];
            TermState termState = termContexts.get(term).get(context.ord);
            if (termState == null) {
              // Term not in reader
              continue;
            }
            termsEnum.seekExact(term.bytes(), termState);
            docFreq += termsEnum.docFreq();
          }


          if (docFreq == 0) {
            // None of the terms are in this reader
            return null;
          }
        } else {
          final Term term = terms[0];
          TermState termState = termContexts.get(term).get(context.ord);
          if (termState == null) {
            // Term not in reader
            return null;
          }
          termsEnum.seekExact(term.bytes(), termState);

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    }
  
    @Override
    public boolean collect(BytesRef bytes) throws IOException {
      final int e = terms.add(bytes);
      final TermState state = termsEnum.termState();
      assert state != null; 
      if (e < 0 ) {
        // duplicate term: update docFreq
        final int pos = (-e)-1;
        array.termState[pos].register(state, readerContext.ord, termsEnum.docFreq(), termsEnum.totalTermFreq());

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      // Reuse single TermsEnum below:
      final TermsEnum te = fieldTerms.iterator(null);
      
      for (int i = 0; i < terms.size(); i++) {
        final Term t = terms.get(i);
        final TermState state = states[i].get(context.ord);
        if (state == null) { /* term doesnt exist in this segment */
          assert termNotInReader(reader, t): "no termstate found but term exists in reader";
          return null;
        }
        te.seekExact(t.bytes(), state);

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            return true;
          if (boost == t.boost && termComp.compare(bytes, t.bytes) > 0)
            return true;
        }
        ScoreTerm t = visitedTerms.get(bytes);
        final TermState state = termsEnum.termState();
        assert state != null;
        if (t != null) {
          // if the term is already in the PQ, only update docFreq of term in PQ
          assert t.boost == boost : "boost should be equal in all segment TermsEnums";
          t.termState.register(state, readerContext.ord, termsEnum.docFreq(), termsEnum.totalTermFreq());

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      @Override
      public TermState termState() throws IOException {
        assert !eof;
        currentFrame.decodeMetaData();
        TermState ts = currentFrame.state.clone();
        //if (DEBUG) System.out.println("BTTR.termState seg=" + segment + " state=" + ts);
        return ts;
      }

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      if (pendingTerms.size() >= termCountLimit || docVisitCount >= docCountCutoff) {
        hasCutOff = true;
        return false;
      }
      
      final TermState termState = termsEnum.termState();
      assert termState != null;
      if (pos < 0) {
        pos = (-pos)-1;
        array.termState[pos].register(termState, readerContext.ord, termsEnum.docFreq(), termsEnum.totalTermFreq());
      } else {

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    /**
     * Returns a {@link TermsEnum} positioned at this weights Term or null if
     * the term does not exist in the given context
     */
    private TermsEnum getTermsEnum(AtomicReaderContext context) throws IOException {
      final TermState state = termStates.get(context.ord);
      if (state == null) { // term is not present in that reader
        assert termNotInReader(context.reader(), term) : "no termstate found but term exists in reader term=" + term;
        return null;
      }
      //System.out.println("LD=" + reader.getLiveDocs() + " set?=" + (reader.getLiveDocs() != null ? reader.getLiveDocs().get(0) : "null"));

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  }


  @Override
  public Spans getSpans(final AtomicReaderContext context, Bits acceptDocs, Map<Term,TermContext> termContexts) throws IOException {
    TermContext termContext = termContexts.get(term);
    final TermState state;
    if (termContext == null) {
      // this happens with span-not query, as it doesn't include the NOT side in extractTerms()
      // so we seek to the term now in this segment..., this sucks because its ugly mostly!
      final Fields fields = context.reader().fields();
      if (fields != null) {

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