Package org.elasticsearch.common.util

Class PageCacheRecycler

java.lang.Object

org.elasticsearch.common.util.PageCacheRecycler

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, Releasable

public class PageCacheRecycler
extends java.lang.Object
implements Releasable

A recycler of fixed-size pages.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PageCacheRecycler.Type

Field Summary

Fields

Modifier and Type	Field	Description
static int	BYTE_PAGE_SIZE
static int	INT_PAGE_SIZE
static Setting<ByteSizeValue>	LIMIT_HEAP_SETTING
static int	LONG_PAGE_SIZE
static PageCacheRecycler	NON_RECYCLING_INSTANCE
static int	OBJECT_PAGE_SIZE
static int	PAGE_SIZE_IN_BYTES	Page size in bytes: 16KB
static Setting<PageCacheRecycler.Type>	TYPE_SETTING
static Setting<java.lang.Double>	WEIGHT_BYTES_SETTING
static Setting<java.lang.Double>	WEIGHT_INT_SETTING
static Setting<java.lang.Double>	WEIGHT_LONG_SETTING
static Setting<java.lang.Double>	WEIGHT_OBJECTS_SETTING

Constructor Summary

Constructors

Constructor	Description
PageCacheRecycler(Settings settings)

Method Summary

Modifier and Type	Method	Description
Recycler.V<byte[]>	bytePage(boolean clear)
void	close()
Recycler.V<int[]>	intPage(boolean clear)
Recycler.V<long[]>	longPage(boolean clear)
Recycler.V<java.lang.Object[]>	objectPage()

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_SETTING

public static final Setting<PageCacheRecycler.Type> TYPE_SETTING

LIMIT_HEAP_SETTING

public static final Setting<ByteSizeValue> LIMIT_HEAP_SETTING

WEIGHT_BYTES_SETTING

public static final Setting<java.lang.Double> WEIGHT_BYTES_SETTING

WEIGHT_LONG_SETTING

public static final Setting<java.lang.Double> WEIGHT_LONG_SETTING

WEIGHT_INT_SETTING

public static final Setting<java.lang.Double> WEIGHT_INT_SETTING

WEIGHT_OBJECTS_SETTING

public static final Setting<java.lang.Double> WEIGHT_OBJECTS_SETTING

PAGE_SIZE_IN_BYTES

public static final int PAGE_SIZE_IN_BYTES

Page size in bytes: 16KB

See Also:

Constant Field Values

OBJECT_PAGE_SIZE

public static final int OBJECT_PAGE_SIZE

LONG_PAGE_SIZE

public static final int LONG_PAGE_SIZE

See Also:

Constant Field Values

INT_PAGE_SIZE

public static final int INT_PAGE_SIZE

See Also:

Constant Field Values

BYTE_PAGE_SIZE

public static final int BYTE_PAGE_SIZE

See Also:

Constant Field Values

NON_RECYCLING_INSTANCE

public static final PageCacheRecycler NON_RECYCLING_INSTANCE

Constructor Detail

PageCacheRecycler

public PageCacheRecycler(Settings settings)

Method Detail

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface Releasable

bytePage

public Recycler.V<byte[]> bytePage(boolean clear)

intPage

public Recycler.V<int[]> intPage(boolean clear)

longPage

public Recycler.V<long[]> longPage(boolean clear)

objectPage

public Recycler.V<java.lang.Object[]> objectPage()