Examples of org.apache.lucene.index.IndexReader.maxDoc()

Class org.apache.lucene.index.IndexReader

Examples of org.apache.lucene.index.IndexReader.maxDoc()

org.apache.lucene.index.IndexReader.maxDoc()
Returns one greater than the largest possible document number. This may be used to, e.g., determine how big to allocate an array which will have an element for every document number in an index.

  }
  
  public static void dumpDocs(File indexDir, PrintWriter out, long maxDocs) throws IOException {
    Directory dir = FSDirectory.open(indexDir);
    IndexReader reader = IndexReader.open(dir, true);
    int max = reader.maxDoc();
    
    StringBuilder buf = new StringBuilder();
    
    for (int i=0; i < max; i++) {
      if (!reader.isDeleted(i)) {

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  //-------------------------------------------------------------------------


  public int getMaxDoc() {
    IndexReader reader=IndexReaderFactoryUtils.getIndexReader(indexFactory);
    try {
      return reader.maxDoc();
    } finally {
      IndexReaderFactoryUtils.releaseIndexReader(indexFactory,reader);
    }
  }

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        // test norms as used by multireader


        aprioriNorms = new byte[aprioriReader.maxDoc()];
        aprioriReader.norms((String) field, aprioriNorms, 0);


        testNorms = new byte[testReader.maxDoc()];
        testReader.norms((String) field, testNorms, 0);


        assertEquals(aprioriNorms.length, testNorms.length);


        for (int i = 0; i < aprioriNorms.length; i++) {

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        // test norms as used by multireader


        aprioriNorms = new byte[aprioriReader.maxDoc() + 10];
        aprioriReader.norms((String) field, aprioriNorms, 10);


        testNorms = new byte[testReader.maxDoc() + 10];
        testReader.norms((String) field, testNorms, 10);


        assertEquals(aprioriNorms.length, testNorms.length);
        
        for (int i = 0; i < aprioriNorms.length; i++) {

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        new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).
            setMergePolicy(newLogMergePolicy(false))
    );
    TestIndexWriterReader.createIndexNoClose(true, "ram", writer);
    IndexReader reader = IndexReader.open(writer, true);
    assertEquals(100, reader.maxDoc());
    writer.commit();
    // we should see only fdx,fdt files here
    String[] files = primaryDir.listAll();
    assertTrue(files.length > 0);
    for (int x=0; x < files.length; x++) {

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    IndexReader air = IndexReader.open(aprioriIndex, false);
    InstantiatedIndexReader tir = testIndex.indexReaderFactory();


    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());


    air.deleteDocument(3);
    tir.deleteDocument(3);

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    air.deleteDocument(3);
    tir.deleteDocument(3);


    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());


    air.deleteDocument(8);
    tir.deleteDocument(8);

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    air.deleteDocument(8);
    tir.deleteDocument(8);


    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());    


    // this (in 3.0) commits the deletions
    air.close();

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    air = IndexReader.open(aprioriIndex, false);
    tir = testIndex.indexReaderFactory();


    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());


    for (int d =0; d<air.maxDoc(); d++) {
      assertEquals(air.isDeleted(d), tir.isDeleted(d));

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    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());


    for (int d =0; d<air.maxDoc(); d++) {
      assertEquals(air.isDeleted(d), tir.isDeleted(d));
    }


    air.close();
    tir.close();

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