org.apache.lucene.util.packed

Class Packed64SingleBlock

java.lang.Object

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

org.apache.lucene.util.packed.PackedInts.Mutable

org.apache.lucene.util.packed.PackedInts.MutableImpl

org.apache.lucene.util.packed.Packed64SingleBlock

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

Packed64SingleBlock.Packed64SingleBlock1, Packed64SingleBlock.Packed64SingleBlock10, Packed64SingleBlock.Packed64SingleBlock12, Packed64SingleBlock.Packed64SingleBlock16, Packed64SingleBlock.Packed64SingleBlock2, Packed64SingleBlock.Packed64SingleBlock21, Packed64SingleBlock.Packed64SingleBlock3, Packed64SingleBlock.Packed64SingleBlock32, Packed64SingleBlock.Packed64SingleBlock4, Packed64SingleBlock.Packed64SingleBlock5, Packed64SingleBlock.Packed64SingleBlock6, Packed64SingleBlock.Packed64SingleBlock7, Packed64SingleBlock.Packed64SingleBlock8, Packed64SingleBlock.Packed64SingleBlock9

abstract class Packed64SingleBlock
extends PackedInts.MutableImpl

This class is similar to Packed64 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 and Description
(package private) static class	Packed64SingleBlock.Packed64SingleBlock1
(package private) static class	Packed64SingleBlock.Packed64SingleBlock10
(package private) static class	Packed64SingleBlock.Packed64SingleBlock12
(package private) static class	Packed64SingleBlock.Packed64SingleBlock16
(package private) static class	Packed64SingleBlock.Packed64SingleBlock2
(package private) static class	Packed64SingleBlock.Packed64SingleBlock21
(package private) static class	Packed64SingleBlock.Packed64SingleBlock3
(package private) static class	Packed64SingleBlock.Packed64SingleBlock32
(package private) static class	Packed64SingleBlock.Packed64SingleBlock4
(package private) static class	Packed64SingleBlock.Packed64SingleBlock5
(package private) static class	Packed64SingleBlock.Packed64SingleBlock6
(package private) static class	Packed64SingleBlock.Packed64SingleBlock7
(package private) static class	Packed64SingleBlock.Packed64SingleBlock8
(package private) static class	Packed64SingleBlock.Packed64SingleBlock9

Field Summary

Fields

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

Fields inherited from class org.apache.lucene.util.packed.PackedInts.MutableImpl

bitsPerValue, valueCount

Constructor Summary

Constructors

Constructor and Description
Packed64SingleBlock(int valueCount, int bitsPerValue)

Method Summary

Modifier and Type	Method and Description
void	clear() Sets all values to 0.
static Packed64SingleBlock	create(DataInput in, int valueCount, int bitsPerValue)
static Packed64SingleBlock	create(int valueCount, int bitsPerValue)
void	fill(int fromIndex, int toIndex, long val) Fill the mutable from fromIndex (inclusive) to toIndex (exclusive) with val.
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.
protected PackedInts.Format	getFormat() The underlying format.
static boolean	isSupported(int bitsPerValue)
long	ramBytesUsed() Return the memory usage of this object in bytes.
private static int	requiredCapacity(int valueCount, int valuesPerBlock)
int	set(int index, long[] arr, int off, int len) Bulk set: set at least one and at most len longs starting at off in arr into this mutable, starting at index.
java.lang.String	toString()

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

getBitsPerValue, size

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

save, set

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 Detail

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

Constructor Detail

Packed64SingleBlock

Packed64SingleBlock(int valueCount,
                    int bitsPerValue)

Method Detail

isSupported

public static boolean isSupported(int bitsPerValue)

requiredCapacity

private static int requiredCapacity(int valueCount,
                                    int valuesPerBlock)

clear

public void clear()

Description copied from class: PackedInts.Mutable

Sets all values to 0.

Overrides:

clear in class PackedInts.Mutable

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

set

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

Description copied from class: PackedInts.Mutable

Bulk set: set at least one and at most len longs starting at off in arr into this mutable, starting at index. Returns the actual number of values that have been set.

Overrides:

set in class PackedInts.Mutable

fill

public void fill(int fromIndex,
                 int toIndex,
                 long val)

Description copied from class: PackedInts.Mutable

Fill the mutable from fromIndex (inclusive) to toIndex (exclusive) with val.

Overrides:

fill in class PackedInts.Mutable

getFormat

protected PackedInts.Format getFormat()

Description copied from class: PackedInts.Mutable

The underlying format.

Overrides:

getFormat in class PackedInts.Mutable

toString

public java.lang.String toString()

Overrides:

toString in class PackedInts.MutableImpl

create

public static Packed64SingleBlock create(DataInput in,
                                         int valueCount,
                                         int bitsPerValue)
                                  throws java.io.IOException

Throws:

java.io.IOException

create

public static Packed64SingleBlock create(int valueCount,
                                         int bitsPerValue)