org.apache.lucene.document

## Class DoubleDocValuesField

- java.lang.Object
- - org.apache.lucene.document.Field
  - - org.apache.lucene.document.NumericDocValuesField
    - - org.apache.lucene.document.DoubleDocValuesField

All Implemented Interfaces:
  IndexableField

    public class DoubleDocValuesField
    extends NumericDocValuesField

Syntactic sugar for encoding doubles as NumericDocValues via `Double.doubleToRawLongBits(double)`.

Per-document double values can be retrieved via `FieldCache.getDoubles(AtomicReader, String, boolean)`.

NOTE: In most all cases this will be rather inefficient, requiring eight bytes per document. Consider encoding double values yourself with only as much precision as you require.

### Nested Class Summary

### Nested classes/interfaces inherited from class org.apache.lucene.document.Field

`Field.Index, Field.Store, Field.TermVector`

### Field Summary

### Fields inherited from class org.apache.lucene.document.NumericDocValuesField

`TYPE`

### Fields inherited from class org.apache.lucene.document.Field

`boost, fieldsData, name, tokenStream, type`

### Constructor Summary

Constructors
Constructor and Description
`DoubleDocValuesField(String name, double value)` Creates a new DocValues field with the specified 64-bit double value

### Method Summary

Methods
`void` `setDoubleValue(double value)` Expert: change the value of this field.
`void` `setLongValue(long value)` Expert: change the value of this field.

### Methods inherited from class org.apache.lucene.document.Field

`binaryValue, boost, fieldType, name, numericValue, readerValue, setBoost, setBytesValue, setBytesValue, setByteValue, setFloatValue, setIntValue, setReaderValue, setShortValue, setStringValue, setTokenStream, stringValue, tokenStream, tokenStreamValue, toString, translateFieldType`

### Methods inherited from class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

### Constructor Detail

#### DoubleDocValuesField

    public DoubleDocValuesField(String name,
                        double value)

Creates a new DocValues field with the specified 64-bit double value

Parameters:
  `name` - field name
  `value` - 64-bit double value
Throws:
  `IllegalArgumentException` - if the field name is null

### Method Detail

#### setDoubleValue

    public void setDoubleValue(double value)

Description copied from class: `Field`
Expert: change the value of this field. See `Field.setStringValue(String)`.

Overrides:
  `setDoubleValue` in class `Field`

#### setLongValue

    public void setLongValue(long value)

Description copied from class: `Field`
Expert: change the value of this field. See `Field.setStringValue(String)`.

Overrides:
  `setLongValue` in class `Field`