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

  private void index() throws IOException {
    System.out.println("Indexing Frankenstein");
    InputStream stream = getClass().getClassLoader().getResourceAsStream("frankenstein-gutenberg.txt");
    BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
    //let's index paragraphs at a time
    IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36));
    directory = new RAMDirectory();
    IndexWriter iw = new IndexWriter(directory, conf);
    String line;
    StringBuilder paraBuffer = new StringBuilder(2048);
    int lines = 0;

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      // Create the dictionary
      dictionary = new HighFrequencyDictionary(reader, field,
          threshold);
      spellChecker.clearIndex();
      spellChecker.indexDictionary(dictionary, new IndexWriterConfig(core.getSolrConfig().luceneMatchVersion, null), false);


    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }

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        (SolrException.ErrorCode.SERVER_ERROR, "can't rebuild spellchecker index without termSourceField configured");
    }


    Dictionary dictionary = getDictionary(req);
    spellChecker.clearIndex();
    spellChecker.indexDictionary(dictionary, new IndexWriterConfig(req.getCore().getSolrConfig().luceneMatchVersion, null), false);
    reopen();
  }

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            true,      // output unigrams
            true);     // output unigrams if no shingles
      analyzer = sw;
    }
    
    IndexWriterConfig config //<co id="luc.index.create"/>
      = new IndexWriterConfig(Version.LUCENE_36, analyzer);
    config.setOpenMode(OpenMode.CREATE);
    IndexWriter writer =  new IndexWriter(directory, config);
    /* <calloutlist>
    <callout arearefs="luc.index.dir">Create Index Directory</callout>
    <callout arearefs="luc.index.analyzer">Setup Analyzer</callout>
    <callout arearefs="luc.index.shingle">Setup Shingle Filter</callout>

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        } catch (IOException e) {
        }
        return result;
      }
    };
    IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_36, analyzer);
    IndexWriter writer = new IndexWriter(directory, conf);
    for (String term : terms) {
      Document doc = new Document();
      doc.add(new Field("chars", term, Field.Store.YES, Field.Index.ANALYZED));
      writer.addDocument(doc);

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    writer.close();
    dir.close();
  }


  private IndexWriter initializeIndexWriter() throws IOException {
    final IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_40,
      this.initializeAnalyzer());


    // Register the SIREn codec
    config.setCodec(new Siren10Codec());


    return new IndexWriter(dir, config);
  }

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                synchronized (this) {
                        wait(15000);
                    }


                Directory store = FSDirectory.open(new File(Vars.Lucene_Repo));
                IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_40, null);
                iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
                iwc.setRAMBufferSizeMB(256.0);
                Vars.writerForLucene = new IndexWriter(store, iwc);


                CommonFunctions localCommonFunctions = new CommonFunctions(
                        new File(Mater_Lector));
                localCommonFunctions.indexDocs_main();

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        String shardName = BlurUtil.getShardName(BlurConstants.SHARD_PREFIX, i);
        File file = new File(tableFile, shardName);
        file.mkdirs();
        MMapDirectory directory = new MMapDirectory(file);
        if (!DirectoryReader.indexExists(directory)) {
          new IndexWriter(directory, new IndexWriterConfig(LUCENE_VERSION, new KeywordAnalyzer())).close();
        }
        shards.put(shardName, openIndex(table, shardName, directory));
      }
      return shards;
    }

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        int mod = 1;
        FSDirectory dir = FSDirectory.open(new File(indexDir));
        try {


          // override the specific index if it already exists
          IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(
              Version.LUCENE_CURRENT, ana).setOpenMode(OpenMode.CREATE));
          ((TieredMergePolicy) writer.getConfig().getMergePolicy()).setUseCompoundFile(true); // why?
          Iterator<String> i1 = word2Nums.keySet().iterator();
          while (i1.hasNext()) // for each word
          {

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public class TestNRTCachingDirectory extends LuceneTestCase {


  public void testNRTAndCommit() throws Exception {
    Directory dir = newDirectory();
    NRTCachingDirectory cachedDir = new NRTCachingDirectory(dir, 2.0, 25.0);
    IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random));
    conf.setMergeScheduler(cachedDir.getMergeScheduler());
    RandomIndexWriter w = new RandomIndexWriter(random, cachedDir, conf);
    w.w.setInfoStream(VERBOSE ? System.out : null);
    final LineFileDocs docs = new LineFileDocs(random);    
    final int numDocs = _TestUtil.nextInt(random, 100, 400);

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