Examples of org.apache.lucene.index.IndexWriterConfig

org.apache.lucene.index.IndexWriterConfig
Holds all the configuration of {@link IndexWriter}. You should instantiate this class, call the setters to set your configuration, then pass it to {@link IndexWriter}. Note that {@link IndexWriter} makes a private clone; ifyou need to subsequently change settings use {@link IndexWriter#getConfig}.
All setter methods return {@link IndexWriterConfig} to allow chainingsettings conveniently, for example:
```
 IndexWriterConfig conf = new IndexWriterConfig(analyzer); conf.setter1().setter2(); 
```
@since 3.1

    this.textCollator = textCollator;
    this.waveletProvider = waveletProvider;
    this.executor = executor;
    analyzer = new StandardAnalyzer(LUCENE_VERSION);
    try {
      IndexWriterConfig config = new IndexWriterConfig(LUCENE_VERSION, analyzer);
      config.setOpenMode(OpenMode.CREATE_OR_APPEND);
      indexWriter = new IndexWriter(directory.getDirectory(), config);
      nrtManager = new NRTManager(indexWriter, new WaveSearchWarmer(waveDomain));
    } catch (IOException ex) {
      throw new IndexException(ex);
    }

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  @Override
  public void setUp() throws Exception {
    super.setUp();
    analyzer = new ShingleAnalyzerWrapper(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false), 2);
    directory = newDirectory();
    IndexWriter writer = new IndexWriter(directory, new IndexWriterConfig(TEST_VERSION_CURRENT, analyzer));


    Document doc;
    doc = new Document();
    doc.add(new TextField("content", "please divide this sentence into shingles", Field.Store.YES));
    writer.addDocument(doc);

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      }
    }


    Directory dir = FSDirectory.open(tempIndexPath);


    IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_46, indexAnalyzer);
    iwc.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
    iwc.setRAMBufferSizeMB(ramBufferSizeMB);
    IndexWriter writer = new IndexWriter(dir, iwc);


    FieldType ft = new FieldType(TextField.TYPE_NOT_STORED);
    // TODO: if only we had IndexOptions.TERMS_ONLY...
    ft.setIndexOptions(IndexOptions.DOCS_AND_FREQS);

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    // create a dummy index under inputDir
    inputDir = new File(testDir, "input");
    Directory tmpDir = newFSDirectory(inputDir);
    try {
      IndexWriter writer = new IndexWriter(tmpDir, new IndexWriterConfig(TEST_VERSION_CURRENT, null));
      for (int i = 0; i < 10; i++) {
        writer.addDocument(new Document());
      }
      writer.close();
    } finally {

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  public ExpectedException thrown = ExpectedException.none();


  @Before
  public void before() throws Exception {
    directory = newDirectory();
    final IndexWriterConfig config = new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    final IndexWriter indexWriter = new IndexWriter(directory, config);
    for (int i = 0; i < AMOUNT_OF_SEGMENTS; i++) {
      List<Document> segmentDocs = createDocsForSegment(i);
      indexWriter.addDocuments(segmentDocs);
      indexWriter.commit();

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  }
  
  public void testDocValuesIntegration() throws Exception {
    assumeTrue("3.x does not support docvalues", defaultCodecSupportsDocValues());
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, null);
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
    Document doc = new Document();
    doc.add(new BinaryDocValuesField("binary", new BytesRef("binary value")));
    doc.add(new SortedDocValuesField("sorted", new BytesRef("sorted value")));
    doc.add(new NumericDocValuesField("numeric", 42));

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  }


  // Make sure that the use of GrowableWriter doesn't prevent from using the full long range
  public void testLongFieldCache() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig cfg = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    cfg.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, cfg);
    Document doc = new Document();
    LongField field = new LongField("f", 0L, Store.YES);
    doc.add(field);
    final long[] values = new long[_TestUtil.nextInt(random(), 1, 10)];

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  }


  // Make sure that the use of GrowableWriter doesn't prevent from using the full int range
  public void testIntFieldCache() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig cfg = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
    cfg.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, cfg);
    Document doc = new Document();
    IntField field = new IntField("f", 0, Store.YES);
    doc.add(field);
    final int[] values = new int[_TestUtil.nextInt(random(), 1, 10)];

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  // file, up until a time limit
  public void testRealTerms() throws Exception {


    final LineFileDocs docs = new LineFileDocs(random(), defaultCodecSupportsDocValues());
    final int RUN_TIME_MSEC = atLeast(500);
    final IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setMaxBufferedDocs(-1).setRAMBufferSizeMB(64);
    final File tempDir = _TestUtil.getTempDir("fstlines");
    final Directory dir = newFSDirectory(tempDir);
    final IndexWriter writer = new IndexWriter(dir, conf);
    final long stopTime = System.currentTimeMillis() + RUN_TIME_MSEC;
    Document doc;

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  public void testBooleanSpanQuery() throws Exception {
    int hits = 0;
    Directory directory = newDirectory();
    Analyzer indexerAnalyzer = new MockAnalyzer(random());


    IndexWriterConfig config = new IndexWriterConfig(TEST_VERSION_CURRENT, indexerAnalyzer);
    IndexWriter writer = new IndexWriter(directory, config);
    String FIELD = "content";
    Document d = new Document();
    d.add(new TextField(FIELD, "clockwork orange", Field.Store.YES));
    writer.addDocument(d);

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