Examples of org.apache.lucene.index.IndexReader$FieldOption

org.apache.lucene.index.IndexReader
Constants describing field properties, for example used for {@link IndexReader#getFieldNames(FieldOption)}.


    // now we should be able to open the index for write. 
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(),null,false,IndexWriter.MaxFieldLength.UNLIMITED);
    iw.close();


    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    assertEquals(numLines + " lines were created but " + ir.numDocs() + " docs are in the index", numLines, ir.numDocs());
    ir.close();


    lineFile.delete();
  }

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        totalTokenCount1 += stat.getCount();
      }
    }


    // Separately count how many tokens are actually in the index:
    IndexReader reader = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    assertEquals(NUM_DOCS, reader.numDocs());


    TermEnum terms = reader.terms();
    TermDocs termDocs = reader.termDocs();
    int totalTokenCount2 = 0;
    while(terms.next()) {
      termDocs.seek(terms.term());
      while(termDocs.next())
        totalTokenCount2 += termDocs.freq();
    }
    reader.close();


    // Make sure they are the same
    assertEquals(totalTokenCount1, totalTokenCount2);
  }

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    // 2. execute the algorithm  (required in every "logic" test)
    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 2 * 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }

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    // 2. execute the algorithm  (required in every "logic" test)
    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }

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    // 2. execute the algorithm  (required in every "logic" test)
    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }

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    assertTrue("did not use the specified MergeScheduler", ((MyMergeScheduler) benchmark.getRunData().getIndexWriter().getMergeScheduler()).called);
    benchmark.getRunData().getIndexWriter().close();


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }

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    Benchmark benchmark = execBenchmark(algLines);
    assertTrue("did not use the specified MergeScheduler", ((MyMergePolicy) benchmark.getRunData().getIndexWriter().getMergePolicy()).called);
    benchmark.getRunData().getIndexWriter().close();
    
    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }

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    assertEquals(IndexWriter.DISABLE_AUTO_FLUSH, (int) writer.getRAMBufferSizeMB());
    assertEquals(3, writer.getMergeFactor());
    assertFalse(writer.getUseCompoundFile());
    writer.close();
    Directory dir = benchmark.getRunData().getDirectory();
    IndexReader reader = IndexReader.open(dir, true);
    TermFreqVector [] tfv = reader.getTermFreqVectors(0);
    assertNotNull(tfv);
    assertTrue(tfv.length > 0);
    reader.close();
  }

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    // 2. execute the algorithm  (required in every "logic" test)
    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();


    // Make sure we have 3 segments:
    final String[] files = benchmark.getRunData().getDirectory().listAll();
    int cfsCount = 0;
    for(int i=0;i<files.length;i++)

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    IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(org.apache.lucene.util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
    writer.addDocument(doc);
    writer.close();
    
    /** open a reader and fetch the document */ 
    IndexReader reader = IndexReader.open(dir, false);
    Document docFromReader = reader.document(0);
    assertTrue(docFromReader != null);
    
    /** fetch the binary stored field and compare it's content with the original one */
    String binaryFldStoredTest = new String(docFromReader.getBinaryValue("binaryStored"));
    assertTrue(binaryFldStoredTest.equals(binaryValStored));
    
    /** fetch the string field and compare it's content with the original one */
    String stringFldStoredTest = docFromReader.get("stringStored");
    assertTrue(stringFldStoredTest.equals(binaryValStored));
    
    /** delete the document from index */
    reader.deleteDocument(0);
    assertEquals(0, reader.numDocs());
    
    reader.close();
    dir.close();
  }

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