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.
Constructor Summary |
DoubleDocValuesField(String name,
double value)
Creates a new DocValues field with the specified 64-bit double value |
Method Summary |
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 |
DoubleDocValuesField
public DoubleDocValuesField(String name,
double value)
- Creates a new DocValues field with the specified 64-bit double value
- Parameters:
name
- field namevalue
- 64-bit double value
- Throws:
IllegalArgumentException
- if the field name is null
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
Copyright © 2000-2013 Apache Software Foundation. All Rights Reserved.