Module org.apache.lucene.backward_codecs

Package org.apache.lucene.backward_codecs.packed

Class LegacyPacked64SingleBlock

java.lang.Object

org.apache.lucene.util.packed.PackedInts.Reader

org.apache.lucene.backward_codecs.packed.LegacyPacked64SingleBlock

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

LegacyPacked64SingleBlock.Packed64SingleBlock1, LegacyPacked64SingleBlock.Packed64SingleBlock10, LegacyPacked64SingleBlock.Packed64SingleBlock12, LegacyPacked64SingleBlock.Packed64SingleBlock16, LegacyPacked64SingleBlock.Packed64SingleBlock2, LegacyPacked64SingleBlock.Packed64SingleBlock21, LegacyPacked64SingleBlock.Packed64SingleBlock3, LegacyPacked64SingleBlock.Packed64SingleBlock32, LegacyPacked64SingleBlock.Packed64SingleBlock4, LegacyPacked64SingleBlock.Packed64SingleBlock5, LegacyPacked64SingleBlock.Packed64SingleBlock6, LegacyPacked64SingleBlock.Packed64SingleBlock7, LegacyPacked64SingleBlock.Packed64SingleBlock8, LegacyPacked64SingleBlock.Packed64SingleBlock9

abstract class LegacyPacked64SingleBlock
extends PackedInts.Reader

This class is similar to LegacyPacked64 except that it trades space for speed by ensuring that a single block needs to be read/written in order to read/write a value.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock1
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock10
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock12
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock16
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock2
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock21
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock3
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock32
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock4
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock5
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock6
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock7
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock8
(package private) static class	LegacyPacked64SingleBlock.Packed64SingleBlock9

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	bitsPerValue
(package private) final long[]	blocks
static final int	MAX_SUPPORTED_BITS_PER_VALUE
private static final int[]	SUPPORTED_BITS_PER_VALUE
protected final int	valueCount

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

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
LegacyPacked64SingleBlock(int valueCount, int bitsPerValue)

Method Summary

Modifier and Type	Method	Description
private static LegacyPacked64SingleBlock	create(int valueCount, int bitsPerValue)
static LegacyPacked64SingleBlock	create(DataInput in, int valueCount, int bitsPerValue)
int	get(int index, long[] arr, int off, int len)	Bulk get: read at least one and at most len longs starting from index into arr[off:off+len] and return the actual number of values that have been read.
static boolean	isSupported(int bitsPerValue)
long	ramBytesUsed()	Return the memory usage of this object in bytes.
private static int	requiredCapacity(int valueCount, int valuesPerBlock)
final int	size()
String	toString()

Methods inherited from class org.apache.lucene.util.packed.PackedInts.Reader

get

Methods inherited from class java.lang.Object

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

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

getChildResources

Field Details

MAX_SUPPORTED_BITS_PER_VALUE

public static final int MAX_SUPPORTED_BITS_PER_VALUE

See Also:

• Constant Field Values

SUPPORTED_BITS_PER_VALUE

private static final int[] SUPPORTED_BITS_PER_VALUE

blocks

final long[] blocks

valueCount

protected final int valueCount

bitsPerValue

protected final int bitsPerValue

Constructor Details

LegacyPacked64SingleBlock

LegacyPacked64SingleBlock(int valueCount,
 int bitsPerValue)

Method Details

isSupported

public static boolean isSupported(int bitsPerValue)

requiredCapacity

private static int requiredCapacity(int valueCount,
 int valuesPerBlock)

size

public final int size()

Specified by:

size in class PackedInts.Reader

Returns:

the number of values.

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

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

get

public int get(int index,
 long[] arr,
 int off,
 int len)

Description copied from class: PackedInts.Reader

Bulk get: read at least one and at most len longs starting from index into arr[off:off+len] and return the actual number of values that have been read.

Overrides:

get in class PackedInts.Reader

toString

public String toString()

Overrides:

toString in class Object

create

public static LegacyPacked64SingleBlock create(DataInput in,
 int valueCount,
 int bitsPerValue)
                                        throws IOException

Throws:

IOException

create

private static LegacyPacked64SingleBlock create(int valueCount,
 int bitsPerValue)