Package org.apache.ignite.internal.processors.cache.persistence.freelist.io

Class PagesListMetaIO

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO

org.apache.ignite.internal.processors.cache.persistence.freelist.io.PagesListMetaIO

public class PagesListMetaIO
extends PageIO

Field Summary

Fields

Modifier and Type	Field	Description
static int	ITEM_SIZE
static int	ITEMS_OFF
static IOVersions<PagesListMetaIO>	VERSIONS

Fields inherited from class org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO

COMMON_HEADER_END, CRC_OFF, MAX_PAYLOAD_SIZE, PAGE_ID_OFF, ROTATED_ID_PART_OFF, T_BPLUS_META, T_CACHE_ID_AWARE_DATA_REF_INNER, T_CACHE_ID_AWARE_DATA_REF_LEAF, T_CACHE_ID_AWARE_PENDING_REF_INNER, T_CACHE_ID_AWARE_PENDING_REF_LEAF, T_DATA, T_DATA_METASTORAGE, T_DATA_PART, T_DATA_REF_INNER, T_DATA_REF_LEAF, T_DATA_REF_METASTORAGE_INNER, T_DATA_REF_METASTORAGE_LEAF, T_DEFRAG_LINK_MAPPING_INNER, T_DEFRAG_LINK_MAPPING_LEAF, T_H2_EX_REF_INNER_END, T_H2_EX_REF_INNER_START, T_H2_EX_REF_LEAF_END, T_H2_EX_REF_LEAF_START, T_H2_REF_INNER, T_H2_REF_LEAF, T_MARKER_PAGE, T_META, T_METASTORE_INNER, T_METASTORE_LEAF, T_PAGE_LIST_META, T_PAGE_LIST_NODE, T_PAGE_UPDATE_TRACKING, T_PART_CNTRS, T_PART_META, T_PENDING_REF_INNER, T_PENDING_REF_LEAF, TYPE_OFF, VER_OFF

Method Summary

Modifier and Type	Method	Description
int	addTails(int pageSize, long pageAddr, int bucket, PagesList.Stripe[] tails, int tailsOff)
void	getBucketsData(long pageAddr, Map<Integer,GridLongList> res)
int	getCapacity(int pageSize, long pageAddr)
int	getFreeSpace(int pageSize, long pageAddr)	Count of bytes that is currently free in this page and possibly can be used to place additional payload.
long	getNextMetaPageId(long pageAddr)
void	initNewPage(long pageAddr, long pageId, int pageSize, PageMetrics metrics)
protected void	printPage(long addr, int pageSize, GridStringBuilder sb)
void	resetCount(long pageAddr)
void	setNextMetaPageId(long pageAddr, long metaPageId)

Methods inherited from class org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO

assertPageType, assertPageType, copyPage, deriveIndexPageType, getBPlusIO, getBPlusIO, getCompactedSize, getCompactedSize, getCompressedSize, getCompressedSize, getCompressionType, getCompressionType, getCrc, getCrc, getInnerVersions, getLeafVersions, getPageId, getPageId, getPageIO, getPageIO, getPageIO, getRotatedIdPart, getType, getType, getType, getVersion, getVersion, getVersion, isDataPageType, isIndexPage, printPage, registerH2, registerH2ExtraInner, registerH2ExtraLeaf, registerTest, registerTest, setCompactedSize, setCompressedSize, setCompressionType, setCrc, setCrc, setPageId, setRotatedIdPart, setType, setVersion, toString

Methods inherited from class java.lang.Object

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

Field Detail

ITEMS_OFF

public static final int ITEMS_OFF

See Also:

Constant Field Values

ITEM_SIZE

public static final int ITEM_SIZE

See Also:

Constant Field Values

VERSIONS

public static final IOVersions<PagesListMetaIO> VERSIONS

Method Detail

initNewPage

public void initNewPage(long pageAddr,
                        long pageId,
                        int pageSize,
                        PageMetrics metrics)

Overrides:

initNewPage in class PageIO

Parameters:

pageAddr - Page address.

pageId - Page ID.

pageSize - Page size.

metrics - Page metrics for tracking page allocation. Can be null if no tracking is required.

See Also:

EncryptionSpi.encryptedSize(int)

getNextMetaPageId

public long getNextMetaPageId(long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

Next meta page ID.

setNextMetaPageId

public void setNextMetaPageId(long pageAddr,
                              long metaPageId)

Parameters:

pageAddr - Page address.

metaPageId - Next meta page ID.

resetCount

public void resetCount(long pageAddr)

Parameters:

pageAddr - Page address.

addTails

public int addTails(int pageSize,
                    long pageAddr,
                    int bucket,
                    PagesList.Stripe[] tails,
                    int tailsOff)

Parameters:

pageSize - Page size.

pageAddr - Page address.

bucket - Bucket number.

tails - Tails.

tailsOff - Tails offset.

Returns:

Number of items written.

getBucketsData

public void getBucketsData(long pageAddr,
                           Map<Integer,GridLongList> res)

Parameters:

pageAddr - Page address.

res - Results map.

getCapacity

public int getCapacity(int pageSize,
                       long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

Maximum number of items which can be stored in buffer.

printPage

protected void printPage(long addr,
                         int pageSize,
                         GridStringBuilder sb)
                  throws IgniteCheckedException

Specified by:

printPage in class PageIO

Parameters:

addr - Address.

pageSize - Page size.

sb - Sb.

Throws:

IgniteCheckedException

getFreeSpace

public int getFreeSpace(int pageSize,
                        long pageAddr)

Count of bytes that is currently free in this page and possibly can be used to place additional payload.

Specified by:

getFreeSpace in class PageIO

Parameters:

pageSize - Page size.

pageAddr - Page address.

Returns:

Free space.