Package org.apache.lucene.codecs.compressing

Class LegacyFieldsIndexReader

java.lang.Object

org.apache.lucene.codecs.compressing.FieldsIndex

org.apache.lucene.codecs.compressing.LegacyFieldsIndexReader

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable, Accountable

final class LegacyFieldsIndexReader
extends FieldsIndex

Random-access reader for FieldsIndexWriter.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int[]	avgChunkDocs
(package private) final long[]	avgChunkSizes
private static final long	BASE_RAM_BYTES_USED
(package private) final int[]	docBases
(package private) final PackedInts.Reader[]	docBasesDeltas
(package private) final int	maxDoc
(package private) final long[]	startPointers
(package private) final PackedInts.Reader[]	startPointersDeltas

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
LegacyFieldsIndexReader(IndexInput fieldsIndexIn, SegmentInfo si)

Method Summary

Modifier and Type	Method	Description
private int	block(int docID)
(package private) void	checkIntegrity()	Check the integrity of the index.
LegacyFieldsIndexReader	clone()
void	close()
Collection<Accountable>	getChildResources()	Returns nested resources of this class.
(package private) long	getStartPointer(int docID)	Get the start pointer for the block that contains the given docID.
long	ramBytesUsed()	Return the memory usage of this object in bytes.
private int	relativeChunk(int block, int relativeDoc)
private int	relativeDocBase(int block, int relativeChunk)
private long	relativeStartPointer(int block, int relativeChunk)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

BASE_RAM_BYTES_USED

private static final long BASE_RAM_BYTES_USED

maxDoc

final int maxDoc

docBases

final int[] docBases

startPointers

final long[] startPointers

avgChunkDocs

final int[] avgChunkDocs

avgChunkSizes

final long[] avgChunkSizes

docBasesDeltas

final PackedInts.Reader[] docBasesDeltas

startPointersDeltas

final PackedInts.Reader[] startPointersDeltas

Constructor Details

LegacyFieldsIndexReader

LegacyFieldsIndexReader(IndexInput fieldsIndexIn,
 SegmentInfo si)
                 throws IOException

Throws:

IOException

Method Details

block

private int block(int docID)

relativeDocBase

private int relativeDocBase(int block,
 int relativeChunk)

relativeStartPointer

private long relativeStartPointer(int block,
 int relativeChunk)

relativeChunk

private int relativeChunk(int block,
 int relativeDoc)

getStartPointer

long getStartPointer(int docID)

Description copied from class: FieldsIndex

Get the start pointer for the block that contains the given docID.

Specified by:

getStartPointer in class FieldsIndex

clone

public LegacyFieldsIndexReader clone()

Specified by:

clone in class FieldsIndex

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

getChildResources

public Collection<Accountable> getChildResources()

Description copied from interface: Accountable

Returns nested resources of this class. The result should be a point-in-time snapshot (to avoid race conditions).

See Also:

• Accountables

toString

public String toString()

Overrides:

toString in class Object

close

public void close()
           throws IOException

Throws:

IOException

checkIntegrity

void checkIntegrity()
             throws IOException

Description copied from class: FieldsIndex

Check the integrity of the index.

Specified by:

checkIntegrity in class FieldsIndex

Throws:

IOException