Package org.apache.lucene.util.packed

Class AbstractPagedMutable<T extends AbstractPagedMutable<T>>

java.lang.Object

org.apache.lucene.util.LongValues

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

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

PagedGrowableWriter, PagedMutable

public abstract class AbstractPagedMutable<T extends AbstractPagedMutable<T>>
extends LongValues
implements Accountable

Base implementation for PagedMutable and PagedGrowableWriter.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	bitsPerValue
(package private) static int	MAX_BLOCK_SIZE
(package private) static int	MIN_BLOCK_SIZE
(package private) int	pageMask
(package private) int	pageShift
(package private) long	size
(package private) PackedInts.Mutable[]	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
AbstractPagedMutable(int bitsPerValue, long size, int pageSize)

Method Summary

Modifier and Type	Method	Description
protected long	baseRamBytesUsed()
protected void	fillPages()
long	get(long index)	Get value at index.
T	grow()	Similar to ArrayUtil.grow(long[]).
T	grow(long minSize)	Similar to ArrayUtil.grow(long[], int).
(package private) int	indexInPage(long index)
(package private) int	lastPageSize(long size)
protected abstract PackedInts.Mutable	newMutable(int valueCount, int bitsPerValue)
protected abstract T	newUnfilledCopy(long newSize)
(package private) int	pageIndex(long index)
(package private) int	pageSize()
long	ramBytesUsed()	Return the memory usage of this object in bytes.
T	resize(long newSize)	Create a new copy of size newSize based on the content of this buffer.
void	set(long index, long value)	Set value at index.
long	size()	The number of values.
java.lang.String	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 Detail

MIN_BLOCK_SIZE

static final int MIN_BLOCK_SIZE

See Also:

Constant Field Values

MAX_BLOCK_SIZE

static final int MAX_BLOCK_SIZE

See Also:

Constant Field Values

size

final long size

pageShift

final int pageShift

pageMask

final int pageMask

subMutables

final PackedInts.Mutable[] subMutables

bitsPerValue

final int bitsPerValue

Constructor Detail

AbstractPagedMutable

AbstractPagedMutable(int bitsPerValue,
                     long size,
                     int pageSize)

Method Detail

fillPages

protected final void fillPages()

newMutable

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

lastPageSize

final int lastPageSize(long size)

pageSize

final int pageSize()

size

public final long size()

The number of values.

pageIndex

final int pageIndex(long index)

indexInPage

final int indexInPage(long index)

get

public final long get(long index)

Description copied from class: LongValues

Get value at index.

Specified by:

get in class LongValues

set

public final void set(long index,
                      long value)

Set value at index.

baseRamBytesUsed

protected long baseRamBytesUsed()

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

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

Specified by:

ramBytesUsed in interface Accountable

newUnfilledCopy

protected abstract T newUnfilledCopy(long newSize)

resize

public final T resize(long newSize)

Create a new copy of size newSize based on the content of this buffer. This method is much more efficient than creating a new instance and copying values one by one.

grow

public final T grow(long minSize)

Similar to ArrayUtil.grow(long[], int).

grow

public final T grow()

Similar to ArrayUtil.grow(long[]).

toString

public final java.lang.String toString()

Overrides:

toString in class java.lang.Object