Examples of org.apache.lucene.search.FieldDoc

org.apache.lucene.search.FieldDoc
Expert: A ScoreDoc which also contains information about how to sort the referenced document. In addition to the document number and score, this object contains an array of values for the document from the field(s) used to sort. For example, if the sort criteria was to sort by fields "a", "b" then "c", the fields object array will have three elements, corresponding respectively to the term values for the document in fields "a", "b" and "c". The class of each element in the array will be either Integer, Float or String depending on the type of values in the terms of each field.
Created: Feb 11, 2004 1:23:38 PM @since lucene 1.4 @see ScoreDoc @see TopFieldDocs

    // TODO: maybe just stored fields?  they compress...
    BinaryDocValues payloadsDV = MultiDocValues.getBinaryValues(searcher.getIndexReader(), "payloads");
    List<AtomicReaderContext> leaves = searcher.getIndexReader().leaves();
    List<LookupResult> results = new ArrayList<>();
    for (int i=0;i<hits.scoreDocs.length;i++) {
      FieldDoc fd = (FieldDoc) hits.scoreDocs[i];
      BytesRef term = textDV.get(fd.doc);
      String text = term.utf8ToString();
      long score = (Long) fd.fields[0];


      BytesRef payload;

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      assertEquals(++i, valueFromDoc);
    }


    // Now get hits after hit #2 using IS.searchAfter()
    int afterIdx = 1;
    FieldDoc afterHit = (FieldDoc) hits.scoreDocs[afterIdx];
    hits = searcher.searchAfter(afterHit, q, Integer.MAX_VALUE, orderBy);


    // Expected # of hits: NUM_VALS - 2
    assertEquals(NUM_VALS - (afterIdx + 1), hits.scoreDocs.length);

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    Sort sort = new Sort(expr.getSortField(bindings, true));
    Query query = new TermQuery(new Term("body", "contents"));
    TopFieldDocs td = searcher.search(query, null, 3, sort, true, true);
    for (int i = 0; i < 3; i++) {
      FieldDoc d = (FieldDoc) td.scoreDocs[i];
      float expected = (float) Math.sqrt(d.score);
      float actual = ((Double)d.fields[0]).floatValue();
      assertEquals(expected, actual, CheckHits.explainToleranceDelta(expected, actual));
    }
  }

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    Sort sort = new Sort(expr.getSortField(bindings, true));
    Query query = new TermQuery(new Term("body", "contents"));
    TopFieldDocs td = searcher.search(query, null, 3, sort, true, true);
    for (int i = 0; i < 3; i++) {
      FieldDoc d = (FieldDoc) td.scoreDocs[i];
      float expected = 2*d.score;
      float actual = ((Double)d.fields[0]).floatValue();
      assertEquals(expected, actual, CheckHits.explainToleranceDelta(expected, actual));
    }
  }

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    Sort sort = new Sort(expr2.getSortField(bindings, true));
    Query query = new TermQuery(new Term("body", "contents"));
    TopFieldDocs td = searcher.search(query, null, 3, sort, true, true);
    for (int i = 0; i < 3; i++) {
      FieldDoc d = (FieldDoc) td.scoreDocs[i];
      float expected = 2*d.score;
      float actual = ((Double)d.fields[0]).floatValue();
      assertEquals(expected, actual, CheckHits.explainToleranceDelta(expected, actual));
    }
  }

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    Expression expr = JavascriptCompiler.compile(sb.toString());
    Sort sort = new Sort(expr.getSortField(bindings, true));
    Query query = new TermQuery(new Term("body", "contents"));
    TopFieldDocs td = searcher.search(query, null, 3, sort, true, true);
    for (int i = 0; i < 3; i++) {
      FieldDoc d = (FieldDoc) td.scoreDocs[i];
      float expected = n*d.score;
      float actual = ((Double)d.fields[0]).floatValue();
      assertEquals(expected, actual, CheckHits.explainToleranceDelta(expected, actual));
    }
  }

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    bindings.add(new SortField("latitude", SortField.Type.DOUBLE));
    bindings.add(new SortField("longitude", SortField.Type.DOUBLE));
    Sort sort = new Sort(distance.getSortField(bindings, false));
    TopFieldDocs td = searcher.search(new MatchAllDocsQuery(), null, 3, sort);
    
    FieldDoc d = (FieldDoc) td.scoreDocs[0];
    assertEquals(0.4619D, (Double)d.fields[0], 1E-4);
    
    d = (FieldDoc) td.scoreDocs[1];
    assertEquals(1.0546D, (Double)d.fields[0], 1E-4);

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    // we reduce the num to the one initially requested
    int actualNum = num / numFactor;


    BytesRef scratch = new BytesRef();
    for (int i = 0; i < hits.scoreDocs.length; i++) {
      FieldDoc fd = (FieldDoc) hits.scoreDocs[i];


      textDV.get(fd.doc, scratch);
      String text = scratch.utf8ToString();
      long weight = (Long) fd.fields[0];

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      assertEquals(++i, valueFromDoc);
    }


    // Now get hits after hit #2 using IS.searchAfter()
    int afterIdx = 1;
    FieldDoc afterHit = (FieldDoc) hits.scoreDocs[afterIdx];
    hits = searcher.searchAfter(afterHit, q, reader.maxDoc(), orderBy);


    // Expected # of hits: NUM_VALS - 2
    assertEquals(NUM_VALS - (afterIdx + 1), hits.scoreDocs.length);

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    BinaryDocValues payloadsDV = MultiDocValues.getBinaryValues(searcher.getIndexReader(), "payloads");
    List<AtomicReaderContext> leaves = searcher.getIndexReader().leaves();
    List<LookupResult> results = new ArrayList<>();
    BytesRef scratch = new BytesRef();
    for (int i=0;i<hits.scoreDocs.length;i++) {
      FieldDoc fd = (FieldDoc) hits.scoreDocs[i];
      textDV.get(fd.doc, scratch);
      String text = scratch.utf8ToString();
      long score = (Long) fd.fields[0];


      BytesRef payload;

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