Module org.apache.lucene.core

Package org.apache.lucene.codecs.lucene90.compressing

Class Lucene90CompressingTermVectorsReader

java.lang.Object

org.apache.lucene.index.TermVectors

org.apache.lucene.codecs.TermVectorsReader

org.apache.lucene.codecs.lucene90.compressing.Lucene90CompressingTermVectorsReader

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable

public final class Lucene90CompressingTermVectorsReader
extends TermVectorsReader

TermVectorsReader for Lucene90CompressingTermVectorsFormat.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Lucene90CompressingTermVectorsReader.BlockState
private class	Lucene90CompressingTermVectorsReader.TVFields
private static class	Lucene90CompressingTermVectorsReader.TVPostingsEnum
private static class	Lucene90CompressingTermVectorsReader.TVTerms
private static class	Lucene90CompressingTermVectorsReader.TVTermsEnum

Field Summary

Fields

Modifier and Type	Field	Description
private Lucene90CompressingTermVectorsReader.BlockState	blockState
private final int	chunkSize
private boolean	closed
private final CompressionMode	compressionMode
private final Decompressor	decompressor
private final FieldInfos	fieldInfos
(package private) final FieldsIndex	indexReader
private final long	maxPointer
private final long	numChunks
private final long	numDirtyChunks
private final long	numDirtyDocs
private final int	numDocs
private final int	packedIntsVersion
private final BlockPackedReaderIterator	reader
(package private) final IndexInput	vectorsStream
private final int	version

Fields inherited from class org.apache.lucene.index.TermVectors

EMPTY

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Lucene90CompressingTermVectorsReader(Lucene90CompressingTermVectorsReader reader)
	Lucene90CompressingTermVectorsReader(Directory d, SegmentInfo si, String segmentSuffix, FieldInfos fn, IOContext context, String formatName, CompressionMode compressionMode)	Sole constructor.

Method Summary

Modifier and Type	Method	Description
void	checkIntegrity()	Checks consistency of this reader.
TermVectorsReader	clone()	Create a clone that one caller at a time may use to read term vectors.
void	close()
private void	ensureOpen()
Fields	get(int doc)	Returns term vectors for this document, or null if term vectors were not indexed.
(package private) int	getChunkSize()
(package private) CompressionMode	getCompressionMode()
(package private) FieldsIndex	getIndexReader()
(package private) long	getMaxPointer()
TermVectorsReader	getMergeInstance()	Returns an instance optimized for merging.
(package private) long	getNumChunks()
(package private) long	getNumDirtyChunks()
(package private) long	getNumDirtyDocs()
(package private) int	getNumDocs()
(package private) int	getPackedIntsVersion()
(package private) IndexInput	getVectorsStream()
(package private) int	getVersion()
(package private) boolean	isLoaded(int docID)	Checks if a given docID was loaded in the current block state.
private int[][]	positionIndex(int skip, int numFields, LongValues numTerms, int[] termFreqs)
private int[][]	readPositions(int skip, int numFields, LongValues flags, LongValues numTerms, int[] termFreqs, int flag, int totalPositions, int[][] positionIndex)
private static RandomAccessInput	slice(IndexInput in)
private static int	sum(int[] arr)
String	toString()

Methods inherited from class org.apache.lucene.index.TermVectors

get

Methods inherited from class java.lang.Object

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

Field Details

fieldInfos

private final FieldInfos fieldInfos

indexReader

final FieldsIndex indexReader

vectorsStream

final IndexInput vectorsStream

version

private final int version

packedIntsVersion

private final int packedIntsVersion

compressionMode

private final CompressionMode compressionMode

decompressor

private final Decompressor decompressor

chunkSize

private final int chunkSize

numDocs

private final int numDocs

closed

private boolean closed

reader

private final BlockPackedReaderIterator reader

numChunks

private final long numChunks

numDirtyChunks

private final long numDirtyChunks

numDirtyDocs

private final long numDirtyDocs

maxPointer

private final long maxPointer

blockState

private Lucene90CompressingTermVectorsReader.BlockState blockState

Constructor Details

Lucene90CompressingTermVectorsReader

private Lucene90CompressingTermVectorsReader(Lucene90CompressingTermVectorsReader reader)

Lucene90CompressingTermVectorsReader

public Lucene90CompressingTermVectorsReader(Directory d,
 SegmentInfo si,
 String segmentSuffix,
 FieldInfos fn,
 IOContext context,
 String formatName,
 CompressionMode compressionMode)
                                     throws IOException

Sole constructor.

Throws:

IOException

Method Details

getCompressionMode

CompressionMode getCompressionMode()

getChunkSize

int getChunkSize()

getPackedIntsVersion

int getPackedIntsVersion()

getVersion

int getVersion()

getIndexReader

FieldsIndex getIndexReader()

getVectorsStream

IndexInput getVectorsStream()

getMaxPointer

long getMaxPointer()

getNumDirtyDocs

long getNumDirtyDocs()

getNumDirtyChunks

long getNumDirtyChunks()

getNumChunks

long getNumChunks()

getNumDocs

int getNumDocs()

ensureOpen

private void ensureOpen()
                 throws AlreadyClosedException

Throws:

AlreadyClosedException - if this TermVectorsReader is closed

close

public void close()
           throws IOException

Throws:

IOException

clone

public TermVectorsReader clone()

Description copied from class: TermVectorsReader

Create a clone that one caller at a time may use to read term vectors.

Specified by:

clone in class TermVectorsReader

getMergeInstance

public TermVectorsReader getMergeInstance()

Description copied from class: TermVectorsReader

Returns an instance optimized for merging. This instance may only be consumed in the thread that called TermVectorsReader.getMergeInstance().

The default implementation returns this

Overrides:

getMergeInstance in class TermVectorsReader

slice

private static RandomAccessInput slice(IndexInput in)
                                throws IOException

Throws:

IOException

isLoaded

boolean isLoaded(int docID)

Checks if a given docID was loaded in the current block state.

get

public Fields get(int doc)
           throws IOException

Description copied from class: TermVectors

Returns term vectors for this document, or null if term vectors were not indexed.

The returned Fields instance acts like a single-document inverted index (the docID will be 0). If offsets are available they are in an OffsetAttribute available from the PostingsEnum.

Specified by:

get in class TermVectors

Throws:

IOException

positionIndex

private int[][] positionIndex(int skip,
 int numFields,
 LongValues numTerms,
 int[] termFreqs)

readPositions

private int[][] readPositions(int skip,
 int numFields,
 LongValues flags,
 LongValues numTerms,
 int[] termFreqs,
 int flag,
 int totalPositions,
 int[][] positionIndex)
                       throws IOException

Throws:

IOException

sum

private static int sum(int[] arr)

checkIntegrity

public void checkIntegrity()
                    throws IOException

Description copied from class: TermVectorsReader

Checks consistency of this reader.

Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.

Specified by:

checkIntegrity in class TermVectorsReader

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object