Module org.apache.lucene.core

Package org.apache.lucene.util.packed

Class PagedMutable

java.lang.Object

org.apache.lucene.util.LongValues

org.apache.lucene.util.packed.AbstractPagedMutable<PagedMutable>

org.apache.lucene.util.packed.PagedMutable

All Implemented Interfaces:

Accountable

public final class PagedMutable
extends AbstractPagedMutable<PagedMutable>

A PagedMutable. This class slices data into fixed-size blocks which have the same number of bits per value. It can be a useful replacement for PackedInts.Mutable to store more than 2B values.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final PackedInts.Format	format

Fields inherited from class org.apache.lucene.util.packed.AbstractPagedMutable

bitsPerValue, MAX_BLOCK_SIZE, MIN_BLOCK_SIZE, pageMask, pageShift, size, subMutables

Fields inherited from class org.apache.lucene.util.LongValues

IDENTITY, ZEROES

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

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
PagedMutable(long size, int pageSize, int bitsPerValue, float acceptableOverheadRatio)	Create a new PagedMutable instance.
PagedMutable(long size, int pageSize, int bitsPerValue, PackedInts.Format format)
PagedMutable(long size, int pageSize, PackedInts.FormatAndBits formatAndBits)

Method Summary

Modifier and Type	Method	Description
protected long	baseRamBytesUsed()
protected PackedInts.Mutable	newMutable(int valueCount, int bitsPerValue)
protected PagedMutable	newUnfilledCopy(long newSize)

Methods inherited from class org.apache.lucene.util.packed.AbstractPagedMutable

fillPages, get, grow, grow, indexInPage, lastPageSize, pageIndex, pageSize, ramBytesUsed, resize, set, size, toString

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

format

final PackedInts.Format format

Constructor Details

PagedMutable

public PagedMutable(long size,
 int pageSize,
 int bitsPerValue,
 float acceptableOverheadRatio)

Create a new PagedMutable instance.

Parameters:

size - the number of values to store.

pageSize - the number of values per page

bitsPerValue - the number of bits per value

acceptableOverheadRatio - an acceptable overhead ratio

PagedMutable

PagedMutable(long size,
 int pageSize,
 PackedInts.FormatAndBits formatAndBits)

PagedMutable

PagedMutable(long size,
 int pageSize,
 int bitsPerValue,
 PackedInts.Format format)

Method Details

newMutable

protected PackedInts.Mutable newMutable(int valueCount,
 int bitsPerValue)

Specified by:

newMutable in class AbstractPagedMutable<PagedMutable>

newUnfilledCopy

protected PagedMutable newUnfilledCopy(long newSize)

Specified by:

newUnfilledCopy in class AbstractPagedMutable<PagedMutable>

baseRamBytesUsed

protected long baseRamBytesUsed()

Overrides:

baseRamBytesUsed in class AbstractPagedMutable<PagedMutable>