Examples of org.apache.lucene.document.StringField

org.apache.lucene.document.StringField
A field that is indexed but not tokenized: the entire String value is indexed as a single token. For example this might be used for a 'country' field or an 'id' field, or any field that you intend to use for sorting or access through the field cache.

    Directory directory = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, null);
    conf.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), directory, conf);
    Document doc = new Document();
    doc.add(new StringField("id", "0", Field.Store.YES));
    doc.add(new NumericDocValuesField("dv1", 0));
    iw.addDocument(doc);
    doc = new Document();
    doc.add(new StringField("id", "1", Field.Store.YES));
    iw.addDocument(doc);
    iw.commit();
    doc = new Document();
    doc.add(new StringField("id", "2", Field.Store.YES));
    doc.add(new NumericDocValuesField("dv1", 5));
    iw.addDocument(doc);
    iw.forceMerge(1);
    iw.close();

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    Directory directory = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, null);
    conf.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), directory, conf);
    Document doc = new Document();
    doc.add(new StringField("id", "0", Field.Store.YES));
    doc.add(new BinaryDocValuesField("dv1", new BytesRef()));
    iw.addDocument(doc);
    doc = new Document();
    doc.add(new StringField("id", "1", Field.Store.YES));
    iw.addDocument(doc);
    iw.forceMerge(1);
    iw.close();
    
    IndexReader ir = DirectoryReader.open(directory);

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    Directory directory = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, null);
    conf.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), directory, conf);
    Document doc = new Document();
    doc.add(new StringField("id", "0", Field.Store.YES));
    doc.add(new BinaryDocValuesField("dv1", new BytesRef()));
    iw.addDocument(doc);
    iw.commit();
    doc = new Document();
    doc.add(new StringField("id", "1", Field.Store.YES));
    iw.addDocument(doc);
    iw.forceMerge(1);
    iw.close();
    
    IndexReader ir = DirectoryReader.open(directory);

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    Directory directory = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, null);
    conf.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), directory, conf);
    Document doc = new Document();
    doc.add(new StringField("id", "0", Field.Store.YES));
    doc.add(new BinaryDocValuesField("dv1", new BytesRef()));
    iw.addDocument(doc);
    doc = new Document();
    doc.add(new StringField("id", "1", Field.Store.YES));
    iw.addDocument(doc);
    iw.commit();
    doc = new Document();
    doc.add(new StringField("id", "2", Field.Store.YES));
    doc.add(new BinaryDocValuesField("dv1", new BytesRef("boo")));
    iw.addDocument(doc);
    iw.forceMerge(1);
    iw.close();

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      docBytes.add(bytes);
      Document doc = new Document();      
      BytesRef b = new BytesRef(bytes);
      b.length = bytes.length;
      doc.add(new BinaryDocValuesField("field", b));
      doc.add(new StringField("id", ""+docID, Field.Store.YES));
      try {
        w.addDocument(doc);
      } catch (IllegalArgumentException iae) {
        if (iae.getMessage().indexOf("is too large") == -1) {
          throw iae;

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      docBytes.add(bytes);
      Document doc = new Document();      
      BytesRef b = new BytesRef(bytes);
      b.length = bytes.length;
      doc.add(new BinaryDocValuesField("field", b));
      doc.add(new StringField("id", ""+docID, Field.Store.YES));
      w.addDocument(doc);
    }
    
    DirectoryReader r = w.getReader();
    w.close();

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  public void testThreads() throws Exception {
    Directory dir = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, conf);
    Document doc = new Document();
    Field idField = new StringField("id", "", Field.Store.NO);
    Field storedBinField = new StoredField("storedBin", new byte[0]);
    Field dvBinField = new BinaryDocValuesField("dvBin", new BytesRef());
    Field dvSortedField = new SortedDocValuesField("dvSorted", new BytesRef());
    Field storedNumericField = new StoredField("storedNum", "");
    Field dvNumericField = new NumericDocValuesField("dvNum", 0);
    doc.add(idField);
    doc.add(storedBinField);
    doc.add(dvBinField);
    doc.add(dvSortedField);
    doc.add(storedNumericField);
    doc.add(dvNumericField);
    
    // index some docs
    int numDocs = atLeast(300);
    for (int i = 0; i < numDocs; i++) {
      idField.setStringValue(Integer.toString(i));
      int length = _TestUtil.nextInt(random(), 0, 8);
      byte buffer[] = new byte[length];
      random().nextBytes(buffer);
      storedBinField.setBytesValue(buffer);
      dvBinField.setBytesValue(buffer);

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    assumeTrue("Codec does not support getDocsWithField", defaultCodecSupportsDocsWithField());
    assumeTrue("Codec does not support SORTED_SET", defaultCodecSupportsSortedSet());
    Directory dir = newDirectory();
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, conf);
    Field idField = new StringField("id", "", Field.Store.NO);
    Field storedBinField = new StoredField("storedBin", new byte[0]);
    Field dvBinField = new BinaryDocValuesField("dvBin", new BytesRef());
    Field dvSortedField = new SortedDocValuesField("dvSorted", new BytesRef());
    Field storedNumericField = new StoredField("storedNum", "");
    Field dvNumericField = new NumericDocValuesField("dvNum", 0);
    
    // index some docs
    int numDocs = atLeast(300);
    for (int i = 0; i < numDocs; i++) {
      idField.setStringValue(Integer.toString(i));
      int length = _TestUtil.nextInt(random(), 0, 8);
      byte buffer[] = new byte[length];
      random().nextBytes(buffer);
      storedBinField.setBytesValue(buffer);
      dvBinField.setBytesValue(buffer);

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  protected List<Document> getDocuments(Iterator<SampleData> sampleData) {
    List<Document> documents = new ArrayList<Document>();
    while (sampleData.hasNext()) {
      SampleData data = sampleData.next();
      Document document = new Document();
      document.add(new StringField("id", data.id, Field.Store.YES));
      document.add(new StringField("name", data.name, Field.Store.YES));
      Shape shape = ctx.readShape(data.shape);
      shape = convertShapeFromGetDocuments(shape);
      if (shape != null) {
        for (Field f : strategy.createIndexableFields(shape)) {
          document.add(f);

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    addDocument(newDoc(id, shape));
  }


  protected Document newDoc(String id, Shape shape) {
    Document doc = new Document();
    doc.add(new StringField("id", id, Field.Store.YES));
    if (shape != null) {
      for (Field f : strategy.createIndexableFields(shape)) {
        doc.add(f);
      }
      if (storeShape)

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