org.apache.lucene.document

## Class FloatDocValuesField

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

All Implemented Interfaces:
  IndexableField

    public class FloatDocValuesField
    extends NumericDocValuesField

Syntactic sugar for encoding floats as NumericDocValues via `Float.floatToRawIntBits(float)`.

Per-document floating point values can be retrieved via `LeafReader.getNumericDocValues(String)`.

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.

### Nested Class Summary

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

`Field.Store`

### Field Summary

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

`TYPE`

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

`fieldsData, name, tokenStream, type`

### Constructor Summary

Constructors
Constructor and Description
`FloatDocValuesField(String name, float value)` Creates a new DocValues field with the specified 32-bit float value

### Method Summary

All Methods Instance Methods Concrete Methods
`void` `setFloatValue(float 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.NumericDocValuesField

`newSlowExactQuery, newSlowRangeQuery`

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

`binaryValue, fieldType, getCharSequenceValue, name, numericValue, readerValue, setBytesValue, setBytesValue, setByteValue, setDoubleValue, setIntValue, setReaderValue, setShortValue, setStringValue, setTokenStream, stringValue, tokenStream, tokenStreamValue, toString`

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

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

### Constructor Detail

#### FloatDocValuesField

    public FloatDocValuesField(String name,
                               float value)

Creates a new DocValues field with the specified 32-bit float value

Parameters:
  `name` - field name
  `value` - 32-bit float value
Throws:
  `IllegalArgumentException` - if the field name is null

### Method Detail

#### setFloatValue

    public void setFloatValue(float value)

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

Overrides:
  `setFloatValue` 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`