Package org.apache.lucene.document

Examples of org.apache.lucene.document.SetBasedFieldSelector

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    int numDocs = reader.numDocs();

    OpenBitSet bitset = new OpenBitSet(numDocs);

    FieldSelector idFieldSelector =
        new SetBasedFieldSelector(Collections.singleton(idField), Collections.<String>emptySet());

    for (int i = 0; i < numDocs; i++) {
      String id;
      // Use Lucene's internal ID if idField is not specified. Else, get it from the document.
      if (idField == null) {
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                        double maxPercentErrorDocs) throws IOException {
    // term docs(null) is a better way of iterating all the docs in Lucene
    Preconditions.checkArgument(normPower == LuceneIterable.NO_NORMALIZING || normPower >= 0,
                                "If specified normPower must be nonnegative", normPower);
    Preconditions.checkArgument(maxPercentErrorDocs >= 0.0 && maxPercentErrorDocs <= 1.0);
    idFieldSelector = new SetBasedFieldSelector(Collections.singleton(idField), Collections.<String>emptySet());
    this.indexReader = indexReader;
    this.idField = idField;
    this.field = field;
    this.mapper = mapper;
    this.normPower = normPower;
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    //new String[]{DocHelper.LARGE_LAZY_FIELD_KEY, DocHelper.LAZY_FIELD_KEY, DocHelper.LAZY_FIELD_BINARY_KEY};
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames);
    Document doc = reader.doc(0, fieldSelector);
    assertTrue("doc is null and it shouldn't be", doc != null);
    Fieldable field = doc.getFieldable(DocHelper.LAZY_FIELD_KEY);
    assertTrue("field is null and it shouldn't be", field != null);
    assertTrue("field is not lazy and it should be", field.isLazy());
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    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);

    // Use LATENT instead of LAZY
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames) {
        @Override
        public FieldSelectorResult accept(String fieldName) {
          final FieldSelectorResult result = super.accept(fieldName);
          if (result == FieldSelectorResult.LAZY_LOAD) {
            return FieldSelectorResult.LATENT;
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    Set<String> lazyFieldNames = new HashSet<String>();
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames);
    Document doc = reader.doc(0, fieldSelector);
    assertTrue("doc is null and it shouldn't be", doc != null);
    Fieldable field = doc.getFieldable(DocHelper.LAZY_FIELD_KEY);
    assertTrue("field is null and it shouldn't be", field != null);
    assertTrue("field is not lazy and it should be", field.isLazy());
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    long lazyTime = 0;
    long regularTime = 0;
    int length = 10;
    Set<String> lazyFieldNames = new HashSet<String>();
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(Collections. <String> emptySet(), lazyFieldNames);

    for (int i = 0; i < length; i++) {
      reader = new FieldsReader(tmpDir, TEST_SEGMENT_NAME, fieldInfos);
      assertTrue(reader.size() == 1);
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    //new String[]{DocHelper.LARGE_LAZY_FIELD_KEY, DocHelper.LAZY_FIELD_KEY, DocHelper.LAZY_FIELD_BINARY_KEY};
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames);
    Document doc = reader.doc(0, fieldSelector);
    assertTrue("doc is null and it shouldn't be", doc != null);
    Fieldable field = doc.getFieldable(DocHelper.LAZY_FIELD_KEY);
    assertTrue("field is null and it shouldn't be", field != null);
    assertTrue("field is not lazy and it should be", field.isLazy());
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    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);

    // Use LATENT instead of LAZY
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames) {
        @Override
        public FieldSelectorResult accept(String fieldName) {
          final FieldSelectorResult result = super.accept(fieldName);
          if (result == FieldSelectorResult.LAZY_LOAD) {
            return FieldSelectorResult.LATENT;
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    Set<String> lazyFieldNames = new HashSet<String>();
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_KEY);
    lazyFieldNames.add(DocHelper.LAZY_FIELD_BINARY_KEY);
    lazyFieldNames.add(DocHelper.TEXT_FIELD_UTF2_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(loadFieldNames, lazyFieldNames);
    Document doc = reader.doc(0, fieldSelector);
    assertTrue("doc is null and it shouldn't be", doc != null);
    Fieldable field = doc.getFieldable(DocHelper.LAZY_FIELD_KEY);
    assertTrue("field is null and it shouldn't be", field != null);
    assertTrue("field is not lazy and it should be", field.isLazy());
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    long lazyTime = 0;
    long regularTime = 0;
    int length = 50;
    Set<String> lazyFieldNames = new HashSet<String>();
    lazyFieldNames.add(DocHelper.LARGE_LAZY_FIELD_KEY);
    SetBasedFieldSelector fieldSelector = new SetBasedFieldSelector(Collections. <String> emptySet(), lazyFieldNames);

    for (int i = 0; i < length; i++) {
      reader = new FieldsReader(tmpDir, TEST_SEGMENT_NAME, fieldInfos);
      assertTrue(reader.size() == 1);
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