Examples of org.apache.lucene.document.Field

org.apache.lucene.document.Field
A field is a section of a Document. Each field has two parts, a name and a value. Values may be free text, provided as a String or as a Reader, or they may be atomic keywords, which are not further processed. Such keywords may be used to represent dates, urls, etc. Fields are optionally stored in the index, so that they may be returned with hits on the document.

    analyzer = new ComplexAnalyzer();
    //analyzer = new MaxWordAnalyzer();
    dir = new RAMDirectory();
    IndexWriter iw = new IndexWriter(dir, analyzer, MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    doc.add(new Field("txt", txt, Field.Store.YES, Field.Index.ANALYZED));
    iw.addDocument(doc);
    iw.commit();
    iw.optimize();
    iw.close();
  }

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  // create the next document
  private Document newDoc() {
    Document d = new Document();
    float boost = nextNorm();
    for (int i = 0; i < 10; i++) {
      Field f = newField("f" + i, "v" + i, Store.NO, Index.NOT_ANALYZED);
      f.setBoost(boost);
      d.add(f);
    }
    return d;
  }

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    final Directory directory = newDirectory();
    final IndexWriter indexWriter = new IndexWriter(directory,
        newIndexWriterConfig(TEST_VERSION_CURRENT, new OverlapAnalyzer()));
    try {
      final Document document = new Document();
      document.add(new Field(FIELD, new TokenStreamOverlap(),
          TermVector.WITH_OFFSETS));
      indexWriter.addDocument(document);
    } finally {
      indexWriter.close();
    }

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    final Directory directory = newDirectory();
    final IndexWriter indexWriter = new IndexWriter(directory,
        newIndexWriterConfig(TEST_VERSION_CURRENT, new OverlapAnalyzer()));
    try {
      final Document document = new Document();
      document.add(new Field(FIELD, new TokenStreamOverlap(),
          TermVector.WITH_POSITIONS_OFFSETS));
      indexWriter.addDocument(document);
    } finally {
      indexWriter.close();
    }

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    final Directory directory = newDirectory();
    final IndexWriter indexWriter = new IndexWriter(directory,
        newIndexWriterConfig(TEST_VERSION_CURRENT, new OverlapAnalyzer()));
    try {
      final Document document = new Document();
      document.add(new Field(FIELD, new TokenStreamOverlap(),
          TermVector.WITH_OFFSETS));
      indexWriter.addDocument(document);
    } finally {
      indexWriter.close();
    }

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    final Directory directory = newDirectory();
    final IndexWriter indexWriter = new IndexWriter(directory,
        newIndexWriterConfig(TEST_VERSION_CURRENT, new OverlapAnalyzer()));
    try {
      final Document document = new Document();
      document.add(new Field(FIELD, new TokenStreamOverlap(),
          TermVector.WITH_POSITIONS_OFFSETS));
      indexWriter.addDocument(document);
    } finally {
      indexWriter.close();
    }

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    Document doc;
    Collector collector;


    doc = new Document();
    doc.add(new Field("f", "a", Field.Store.NO, Field.Index.NOT_ANALYZED));
    writer.addDocument(doc);
    writer.commit();


    collector = new Collector();
    searcher.search(new TermQuery(new Term("f", "a")), collector);
    assertEquals(1, collector.hits);


    doc = new Document();
    doc.add(new Field("f", "a", Field.Store.NO, Field.Index.NOT_ANALYZED));
    writer.addDocument(doc);
    writer.commit();


    collector = new Collector();
    searcher.search(new TermQuery(new Term("f", "a")), collector);

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    // setup index 1
    Directory ramDir1 = newDirectory();
    IndexWriter writer1 = new IndexWriter(ramDir1, newIndexWriterConfig(
        TEST_VERSION_CURRENT, new StandardAnalyzer(TEST_VERSION_CURRENT)));
    Document d = new Document();
    Field f = new Field(FIELD_NAME, "multiOne", Field.Store.YES, Field.Index.ANALYZED);
    d.add(f);
    writer1.addDocument(d);
    writer1.optimize();
    writer1.close();
    IndexReader reader1 = IndexReader.open(ramDir1, true);


    // setup index 2
    Directory ramDir2 = newDirectory();
    IndexWriter writer2 = new IndexWriter(ramDir2, newIndexWriterConfig(
        TEST_VERSION_CURRENT, new StandardAnalyzer(TEST_VERSION_CURRENT)));
    d = new Document();
    f = new Field(FIELD_NAME, "multiTwo", Field.Store.YES, Field.Index.ANALYZED);
    d.add(f);
    writer2.addDocument(d);
    writer2.optimize();
    writer2.close();
    IndexReader reader2 = IndexReader.open(ramDir2, true);

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    searchIndex();
  }
  
  private Document doc( String f, String v ){
    Document doc = new Document();
    doc.add( new Field( f, v, Store.YES, Index.ANALYZED ) );
    return doc;
  }

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    ramDir.close();
    super.tearDown();
  }
  private void addDoc(IndexWriter writer, String text) throws IOException {
    Document d = new Document();
    Field f = new Field(FIELD_NAME, text, Field.Store.YES, Field.Index.ANALYZED);
    d.add(f);
    writer.addDocument(d);


  }

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