Package org.apache.lucene.backward_codecs.lucene90

Class Lucene90Codec

java.lang.Object

org.apache.lucene.codecs.Codec

org.apache.lucene.backward_codecs.lucene90.Lucene90Codec

All Implemented Interfaces:

NamedSPILoader.NamedSPI

public class Lucene90Codec
extends Codec

Implements the Lucene 9.0 index format

If you want to reuse functionality of this codec in another codec, extend FilterCodec.

See Also:

package documentation for file format details.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Lucene90Codec.Mode	Configuration option for the codec.

Field Summary

Fields

Modifier and Type	Field	Description
private CompoundFormat	compoundFormat
private DocValuesFormat	defaultDVFormat
private KnnVectorsFormat	defaultKnnVectorsFormat
private PostingsFormat	defaultPostingsFormat
private DocValuesFormat	docValuesFormat
private FieldInfosFormat	fieldInfosFormat
private KnnVectorsFormat	knnVectorsFormat
private LiveDocsFormat	liveDocsFormat
private NormsFormat	normsFormat
private PostingsFormat	postingsFormat
private SegmentInfoFormat	segmentInfosFormat
private StoredFieldsFormat	storedFieldsFormat
private TermVectorsFormat	vectorsFormat

Constructor Summary

Constructors

Constructor	Description
Lucene90Codec()	Instantiates a new codec.
Lucene90Codec(Lucene90Codec.Mode mode)	Instantiates a new codec, specifying the stored fields compression mode to use.

Method Summary

Modifier and Type	Method	Description
CompoundFormat	compoundFormat()	Encodes/decodes compound files
DocValuesFormat	docValuesFormat()	Encodes/decodes docvalues
FieldInfosFormat	fieldInfosFormat()	Encodes/decodes field infos file
DocValuesFormat	getDocValuesFormatForField(java.lang.String field)	Returns the docvalues format that should be used for writing new segments of field .
KnnVectorsFormat	getKnnVectorsFormatForField(java.lang.String field)	Returns the vectors format that should be used for writing new segments of field
PostingsFormat	getPostingsFormatForField(java.lang.String field)	Returns the postings format that should be used for writing new segments of field.
KnnVectorsFormat	knnVectorsFormat()	Encodes/decodes numeric vector fields
LiveDocsFormat	liveDocsFormat()	Encodes/decodes live docs
NormsFormat	normsFormat()	Encodes/decodes document normalization values
PointsFormat	pointsFormat()	Encodes/decodes points index
PostingsFormat	postingsFormat()	Encodes/decodes postings
SegmentInfoFormat	segmentInfoFormat()	Encodes/decodes segment info file
StoredFieldsFormat	storedFieldsFormat()	Encodes/decodes stored fields
TermVectorsFormat	termVectorsFormat()	Encodes/decodes term vectors

Methods inherited from class org.apache.lucene.codecs.Codec

availableCodecs, forName, getDefault, getName, reloadCodecs, setDefault, toString

Methods inherited from class java.lang.Object

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

Field Detail

vectorsFormat

private final TermVectorsFormat vectorsFormat

fieldInfosFormat

private final FieldInfosFormat fieldInfosFormat

segmentInfosFormat

private final SegmentInfoFormat segmentInfosFormat

liveDocsFormat

private final LiveDocsFormat liveDocsFormat

compoundFormat

private final CompoundFormat compoundFormat

normsFormat

private final NormsFormat normsFormat

defaultPostingsFormat

private final PostingsFormat defaultPostingsFormat

postingsFormat

private final PostingsFormat postingsFormat

defaultDVFormat

private final DocValuesFormat defaultDVFormat

docValuesFormat

private final DocValuesFormat docValuesFormat

defaultKnnVectorsFormat

private final KnnVectorsFormat defaultKnnVectorsFormat

knnVectorsFormat

private final KnnVectorsFormat knnVectorsFormat

storedFieldsFormat

private final StoredFieldsFormat storedFieldsFormat

Constructor Detail

Lucene90Codec

public Lucene90Codec()

Instantiates a new codec.

Lucene90Codec

public Lucene90Codec(Lucene90Codec.Mode mode)

Instantiates a new codec, specifying the stored fields compression mode to use.

Parameters:

mode - stored fields compression mode to use for newly flushed/merged segments.

Method Detail

storedFieldsFormat

public final StoredFieldsFormat storedFieldsFormat()

Description copied from class: Codec

Encodes/decodes stored fields

Specified by:

storedFieldsFormat in class Codec

termVectorsFormat

public final TermVectorsFormat termVectorsFormat()

Description copied from class: Codec

Encodes/decodes term vectors

Specified by:

termVectorsFormat in class Codec

postingsFormat

public final PostingsFormat postingsFormat()

Description copied from class: Codec

Encodes/decodes postings

Specified by:

postingsFormat in class Codec

fieldInfosFormat

public final FieldInfosFormat fieldInfosFormat()

Description copied from class: Codec

Encodes/decodes field infos file

Specified by:

fieldInfosFormat in class Codec

segmentInfoFormat

public final SegmentInfoFormat segmentInfoFormat()

Description copied from class: Codec

Encodes/decodes segment info file

Specified by:

segmentInfoFormat in class Codec

liveDocsFormat

public final LiveDocsFormat liveDocsFormat()

Description copied from class: Codec

Encodes/decodes live docs

Specified by:

liveDocsFormat in class Codec

compoundFormat

public final CompoundFormat compoundFormat()

Description copied from class: Codec

Encodes/decodes compound files

Specified by:

compoundFormat in class Codec

pointsFormat

public final PointsFormat pointsFormat()

Description copied from class: Codec

Encodes/decodes points index

Specified by:

pointsFormat in class Codec

knnVectorsFormat

public KnnVectorsFormat knnVectorsFormat()

Description copied from class: Codec

Encodes/decodes numeric vector fields

Specified by:

knnVectorsFormat in class Codec

getPostingsFormatForField

public PostingsFormat getPostingsFormatForField(java.lang.String field)

Returns the postings format that should be used for writing new segments of field.

The default implementation always returns "Lucene90".

WARNING: if you subclass, you are responsible for index backwards compatibility: future version of Lucene are only guaranteed to be able to read the default implementation,

getDocValuesFormatForField

public DocValuesFormat getDocValuesFormatForField(java.lang.String field)

Returns the docvalues format that should be used for writing new segments of field .

The default implementation always returns "Lucene90".

WARNING: if you subclass, you are responsible for index backwards compatibility: future version of Lucene are only guaranteed to be able to read the default implementation.

getKnnVectorsFormatForField

public KnnVectorsFormat getKnnVectorsFormatForField(java.lang.String field)

Returns the vectors format that should be used for writing new segments of field

The default implementation always returns "Lucene90".

WARNING: if you subclass, you are responsible for index backwards compatibility: future version of Lucene are only guaranteed to be able to read the default implementation.

docValuesFormat

public final DocValuesFormat docValuesFormat()

Description copied from class: Codec

Encodes/decodes docvalues

Specified by:

docValuesFormat in class Codec

normsFormat

public final NormsFormat normsFormat()

Description copied from class: Codec

Encodes/decodes document normalization values

Specified by:

normsFormat in class Codec