Examples of FloatDocValuesField

org.apache.lucene.document.FloatDocValuesField
Syntactic sugar for encoding floats as NumericDocValues via {@link Float#floatToRawIntBits(float)}.
Per-document floating point values can be retrieved via {@link FieldCache#getFloats(AtomicReader,String,boolean)}.
NOTE: In most all cases this will be rather inefficient, requiring four bytes per document. Consider encoding floating point values yourself with only as much precision as you require.

Examples of org.apache.lucene.document.FloatDocValuesField


  public void testBasicFloat() throws Exception {
    Directory d = newDirectory();
    RandomIndexWriter w = new RandomIndexWriter(random(), d);
    Document doc = new Document();
    FloatDocValuesField field = new FloatDocValuesField("field", 0.0f);
    doc.add(field);
    for(long l=0;l<100;l++) {
      field.setFloatValue(l);
      w.addDocument(doc);
    }


    IndexReader r = w.getReader();
    w.close();

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Examples of org.apache.lucene.document.FloatDocValuesField

    float[] values = new float[numDocs];
    for(int i=0;i<numDocs;i++) {
      Document doc = new Document();
      float v = random().nextFloat();
      values[i] = v;
      doc.add(new FloatDocValuesField("field", v));
      doc.add(new FloatField("field", v, Field.Store.NO));
      w.addDocument(doc);
    }
    IndexReader r = w.getReader();
    w.close();

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Examples of org.apache.lucene.document.FloatDocValuesField

    RandomIndexWriter iwriter = new RandomIndexWriter(random(), directory);
    Document doc = new Document();
    String longTerm = "longtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongterm";
    String text = "This is the text to be indexed. " + longTerm;
    doc.add(newTextField("fieldname", text, Field.Store.YES));
    doc.add(new FloatDocValuesField("dv", 5.7f));
    iwriter.addDocument(doc);
    iwriter.close();
    
    // Now search the index:
    IndexReader ireader = DirectoryReader.open(directory); // read-only=true

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Examples of org.apache.lucene.document.FloatDocValuesField

    doc.add(new SortedDocValuesField("dvBytesSortedFixed", ref));
    doc.add(new SortedDocValuesField("dvBytesSortedVar", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightFixed", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightVar", ref));
    doc.add(new DoubleDocValuesField("dvDouble", (double)id));
    doc.add(new FloatDocValuesField("dvFloat", (float)id));
    doc.add(new NumericDocValuesField("dvInt", id));
    doc.add(new NumericDocValuesField("dvLong", id));
    doc.add(new NumericDocValuesField("dvPacked", id));
    doc.add(new NumericDocValuesField("dvShort", (short)id));
    // a field with both offsets and term vectors for a cross-check

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Examples of org.apache.lucene.document.FloatDocValuesField

    doc.add(new SortedDocValuesField("dvBytesSortedFixed", ref));
    doc.add(new SortedDocValuesField("dvBytesSortedVar", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightFixed", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightVar", ref));
    doc.add(new DoubleDocValuesField("dvDouble", (double)id));
    doc.add(new FloatDocValuesField("dvFloat", (float)id));
    doc.add(new NumericDocValuesField("dvInt", id));
    doc.add(new NumericDocValuesField("dvLong", id));
    doc.add(new NumericDocValuesField("dvPacked", id));
    doc.add(new NumericDocValuesField("dvShort", (short)id));
    // a field with both offsets and term vectors for a cross-check

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Examples of org.apache.lucene.document.FloatDocValuesField


  public void testBasicFloat() throws Exception {
    Directory d = newDirectory();
    RandomIndexWriter w = new RandomIndexWriter(random(), d);
    Document doc = new Document();
    FloatDocValuesField field = new FloatDocValuesField("field", 0.0f);
    doc.add(field);
    for(long l=0;l<100;l++) {
      field.setFloatValue((float) l);
      w.addDocument(doc);
    }


    IndexReader r = w.getReader();
    w.close();

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Examples of org.apache.lucene.document.FloatDocValuesField

    float[] values = new float[numDocs];
    for(int i=0;i<numDocs;i++) {
      Document doc = new Document();
      float v = random().nextFloat();
      values[i] = v;
      doc.add(new FloatDocValuesField("field", v));
      doc.add(new FloatField("field", v, Field.Store.NO));
      w.addDocument(doc);
    }
    IndexReader r = w.getReader();
    w.close();

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Examples of org.apache.lucene.document.FloatDocValuesField

    RandomIndexWriter iwriter = new RandomIndexWriter(random(), directory);
    Document doc = new Document();
    String longTerm = "longtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongterm";
    String text = "This is the text to be indexed. " + longTerm;
    doc.add(newTextField("fieldname", text, Field.Store.YES));
    doc.add(new FloatDocValuesField("dv", 5.7f));
    iwriter.addDocument(doc);
    iwriter.close();
    
    // Now search the index:
    IndexReader ireader = DirectoryReader.open(directory); // read-only=true

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Examples of org.apache.lucene.document.FloatDocValuesField

    doc.add(new SortedDocValuesField("dvBytesSortedFixed", ref));
    doc.add(new SortedDocValuesField("dvBytesSortedVar", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightFixed", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightVar", ref));
    doc.add(new DoubleDocValuesField("dvDouble", (double)id));
    doc.add(new FloatDocValuesField("dvFloat", (float)id));
    doc.add(new NumericDocValuesField("dvInt", id));
    doc.add(new NumericDocValuesField("dvLong", id));
    doc.add(new NumericDocValuesField("dvPacked", id));
    doc.add(new NumericDocValuesField("dvShort", (short)id));
    doc.add(new SortedSetDocValuesField("dvSortedSet", ref));

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Examples of org.apache.lucene.document.FloatDocValuesField

    doc.add(new SortedDocValuesField("dvBytesSortedFixed", ref));
    doc.add(new SortedDocValuesField("dvBytesSortedVar", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightFixed", ref));
    doc.add(new BinaryDocValuesField("dvBytesStraightVar", ref));
    doc.add(new DoubleDocValuesField("dvDouble", (double)id));
    doc.add(new FloatDocValuesField("dvFloat", (float)id));
    doc.add(new NumericDocValuesField("dvInt", id));
    doc.add(new NumericDocValuesField("dvLong", id));
    doc.add(new NumericDocValuesField("dvPacked", id));
    doc.add(new NumericDocValuesField("dvShort", (short)id));
    doc.add(new SortedSetDocValuesField("dvSortedSet", ref));

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