Examples of org.apache.lucene.index.Fields.terms()

org.apache.lucene.index.Fields.terms()
Get the {@link Terms} for this field. This will returnnull if the field does not exist.


  private static List<Term> sample(Random random, IndexReader reader, int size) throws IOException {
    List<Term> sample = new ArrayList<>();
    Fields fields = MultiFields.getFields(reader);
    for (String field : fields) {
      Terms terms = fields.terms(field);
      assertNotNull(terms);
      TermsEnum termsEnum = terms.iterator(null);
      while (termsEnum.next() != null) {
        if (sample.size() >= size) {
          int pos = random.nextInt(size);

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    for (String fieldName : fields) {
      if (fieldName.equals(DocMaker.ID_FIELD) || fieldName.equals(DocMaker.DATE_MSEC_FIELD) || fieldName.equals(DocMaker.TIME_SEC_FIELD)) {
        continue;
      }
      Terms terms = fields.terms(fieldName);
      if (terms == null) {
        continue;
      }
      TermsEnum termsEnum = terms.iterator(null);
      DocsEnum docs = null;

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  private void duellReaders(CompositeReader other, AtomicReader memIndexReader)
      throws IOException {
    AtomicReader competitor = SlowCompositeReaderWrapper.wrap(other);
    Fields memFields = memIndexReader.fields();
    for (String field : competitor.fields()) {
      Terms memTerms = memFields.terms(field);
      Terms iwTerms = memIndexReader.terms(field);
      if (iwTerms == null) {
        assertNull(memTerms);
      } else {
        NumericDocValues normValues = competitor.getNormValues(field);

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    Map<String, Int> termFreqMap = new HashMap<>();
    for (String fieldName : fieldNames) {
      final Fields vectors = ir.getTermVectors(docNum);
      final Terms vector;
      if (vectors != null) {
        vector = vectors.terms(fieldName);
      } else {
        vector = null;
      }


      // field does not store term vector info

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    assertEquals(1, s.search(new TermQuery(new Term("tokenized_tokenstream", "abc")), 1).totalHits);
    assertEquals(1, s.search(new TermQuery(new Term("tokenized_tokenstream", "xyz")), 1).totalHits);


    for(String field : new String[] {"tv", "tv_pos", "tv_off", "tv_pos_off"}) {
      Fields tvFields = r.getTermVectors(0);
      Terms tvs = tvFields.terms(field);
      assertNotNull(tvs);
      assertEquals(2, tvs.size());
      TermsEnum tvsEnum = tvs.iterator(null);
      assertEquals(new BytesRef("abc"), tvsEnum.next());
      final DocsAndPositionsEnum dpEnum = tvsEnum.docsAndPositions(null, null);

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  private static List<Term> sample(Random random, IndexReader reader, int size) throws IOException {
    List<Term> sample = new ArrayList<Term>();
    Fields fields = MultiFields.getFields(reader);
    for (String field : fields) {
      Terms terms = fields.terms(field);
      assertNotNull(terms);
      TermsEnum termsEnum = terms.iterator(null);
      while (termsEnum.next() != null) {
        if (sample.size() >= size) {
          int pos = random.nextInt(size);

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      String field, Document doc, Analyzer analyzer) throws IOException {
    TokenStream ts = null;


    Fields vectors = reader.getTermVectors(docId);
    if (vectors != null) {
      Terms vector = vectors.terms(field);
      if (vector != null) {
        ts = getTokenStream(vector);
      }
    }

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      String field, Analyzer analyzer) throws IOException {
    TokenStream ts = null;


    Fields vectors = reader.getTermVectors(docId);
    if (vectors != null) {
      Terms vector = vectors.terms(field);
      if (vector != null) {
        ts = getTokenStream(vector);
      }
    }

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    Fields vectors = reader.getTermVectors(docId);
    if (vectors == null) {
      return null;
    }


    Terms vector = vectors.terms(field);
    if (vector == null) {
      return null;
    }


    if (!vector.hasPositions() || !vector.hasOffsets()) {

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        continue;
      }
      for (int i = 0; i < queryTerms.length; i++) {
        Term term = queryTerms[i];
        TermContext termContext = contextArray[i];
        final Terms terms = fields.terms(term.field());
        if (terms == null) {
          // field does not exist
          continue;
        }
        termsEnum = terms.iterator(termsEnum);

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