org.apache.ignite.internal.processors.cache.mvcc.txlog

Class TxLogLeafIO

java.lang.Object

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

org.apache.ignite.internal.processors.cache.persistence.tree.io.BPlusIO<L>

org.apache.ignite.internal.processors.cache.persistence.tree.io.BPlusLeafIO<TxKey>

org.apache.ignite.internal.processors.cache.mvcc.txlog.TxLogLeafIO

All Implemented Interfaces:

TxLogIO, CompactablePageIO

public class TxLogLeafIO
extends BPlusLeafIO<TxKey>
implements TxLogIO

Field Summary

Fields

Modifier and Type	Field and Description
static IOVersions<TxLogLeafIO>	VERSIONS

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

ITEMS_OFF, itemSize

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_CACHE_ID_DATA_REF_MVCC_INNER, T_CACHE_ID_DATA_REF_MVCC_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_DATA_REF_MVCC_INNER, T_DATA_REF_MVCC_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_EX_REF_MVCC_INNER_END, T_H2_EX_REF_MVCC_INNER_START, T_H2_EX_REF_MVCC_LEAF_END, T_H2_EX_REF_MVCC_LEAF_START, T_H2_MVCC_REF_INNER, T_H2_MVCC_REF_LEAF, T_H2_REF_INNER, T_H2_REF_LEAF, 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, T_TX_LOG_INNER, T_TX_LOG_LEAF, TYPE_OFF, VER_OFF

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TxLogLeafIO(int ver)

Method Summary

Modifier and Type	Method and Description
int	compare(long pageAddr, int off, TxKey row)
TxKey	getLookupRow(BPlusTree<TxKey,?> tree, long pageAddr, int idx) Get lookup row.
long	getMajor(long pageAddr, int off)
long	getMinor(long pageAddr, int off)
byte	getState(long pageAddr, int off)
void	setMajor(long pageAddr, int off, long major)
void	setMinor(long pageAddr, int off, long minor)
void	setState(long pageAddr, int off, byte state)
void	store(long dstPageAddr, int dstIdx, BPlusIO<TxKey> srcIo, long srcPageAddr, int srcIdx) Store row info from the given source.
void	storeByOffset(long pageAddr, int off, TxKey row) Store the needed info about the row in the page.

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

copyItems, getMaxCount, offset

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

canGetRow, compactPage, getCount, getForward, getItemsEnd, getItemSize, getRemoveId, initNewPage, insert, isLeaf, merge, printPage, remove, restorePage, setCount, setForward, setRemoveId, splitExistingPage, splitForwardPage, store, visit

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

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, 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

VERSIONS

public static final IOVersions<TxLogLeafIO> VERSIONS

Constructor Detail

TxLogLeafIO

protected TxLogLeafIO(int ver)

Parameters:

ver - Page format version.

Method Detail

storeByOffset

public void storeByOffset(long pageAddr,
                          int off,
                          TxKey row)

Store the needed info about the row in the page. Leaf and inner pages can store different info.

Specified by:

storeByOffset in class BPlusIO<TxKey>

Parameters:

pageAddr - Page address.

off - Offset in bytes.

row - Lookup or full row.

store

public void store(long dstPageAddr,
                  int dstIdx,
                  BPlusIO<TxKey> srcIo,
                  long srcPageAddr,
                  int srcIdx)

Store row info from the given source.

Specified by:

store in class BPlusIO<TxKey>

Parameters:

dstPageAddr - Destination page address.

dstIdx - Destination index.

srcIo - Source IO.

srcPageAddr - Source page address.

srcIdx - Source index.

getLookupRow

public TxKey getLookupRow(BPlusTree<TxKey,?> tree,
                          long pageAddr,
                          int idx)

Get lookup row.

Specified by:

getLookupRow in class BPlusIO<TxKey>

Parameters:

tree - Tree.

pageAddr - Page address.

idx - Index.

Returns:

Lookup row.

compare

public int compare(long pageAddr,
                   int off,
                   TxKey row)

Specified by:

compare in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

row - Row to compare with.

Returns:

Comparision result.

getMajor

public long getMajor(long pageAddr,
                     int off)

Specified by:

getMajor in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

Returns:

Major version

setMajor

public void setMajor(long pageAddr,
                     int off,
                     long major)

Specified by:

setMajor in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

major - Major version

getMinor

public long getMinor(long pageAddr,
                     int off)

Specified by:

getMinor in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

Returns:

Minor version.

setMinor

public void setMinor(long pageAddr,
                     int off,
                     long minor)

Specified by:

setMinor in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

minor - Minor version.

getState

public byte getState(long pageAddr,
                     int off)

Specified by:

getState in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

Returns:

Transaction state.

setState

public void setState(long pageAddr,
                     int off,
                     byte state)

Specified by:

setState in interface TxLogIO

Parameters:

pageAddr - Page address.

off - Item offset.

state - Transaction state.