Package org.apache.ignite.internal.persistence.tree.io

Class BPlusMetaIO

java.lang.Object

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

org.apache.ignite.internal.persistence.tree.io.BPlusMetaIO

public class BPlusMetaIO
extends PageIO

IO routines for B+Tree meta pages.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEFAULT_FLAGS
static final IOVersions<BPlusMetaIO>	VERSIONS

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

COMMON_HEADER_END, CRC_OFF, MAX_PAYLOAD_SIZE, PAGE_ID_OFF, ROTATED_ID_PART_OFF, T_BM_BINARY_DATA, T_BM_BINARY_LONG_INDEX_INNER, T_BM_BINARY_LONG_INDEX_LEAF, T_BM_CONTAINED_OBJECT_INDEX_INNER, T_BM_CONTAINED_OBJECT_INDEX_LEAF, T_BM_INT_INT_INDEX_INNER, T_BM_INT_INT_INDEX_LEAF, T_BM_LONG_DATA, T_BM_LONG_DATA_REF_INNER, T_BM_LONG_DATA_REF_LEAF, T_BM_OBJECT_DATA, T_BM_OBJECT_DATA_REF_INNER, T_BM_OBJECT_DATA_REF_LEAF, 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_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, T_TX_LOG_INNER, T_TX_LOG_LEAF, TYPE_OFF, VER_OFF

Method Summary

Modifier and Type	Method	Description
void	addRoot(long pageAddr, long rootPageId, int pageSize)
void	cutRoot(long pageAddr, int pageSize)
long	getFirstPageId(long pageAddr, int lvl)
int	getInlineSize(long pageAddr)
int	getLevelsCount(long pageAddr)
int	getRootLevel(long pageAddr)
void	initFlags(long pageAddr, long flags)
void	initRoot(long pageAdrr, long rootId, int pageSize)
boolean	inlineObjectHash(long pageAddr)	Whether Java objects should be inlined as hash or as bytes array.
boolean	inlineObjectSupported(long pageAddr)
protected void	printPage(long addr, int pageSize, GridStringBuilder sb)
void	setFlags(long pageAddr, boolean unwrappedPk, boolean inlineObjSupported)
void	setInlineSize(long pageAddr, int size)
boolean	supportFlags()
boolean	unwrappedPk(long pageAddr)
static void	upgradePageVersion(long pageAddr, boolean inlineObjSupported, boolean unwrappedPk, int pageSize)

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

copyPage, getBPlusIO, getBPlusIO, getCompactedSize, getCompactedSize, getCompressedSize, getCompressedSize, getCompressionType, getCompressionType, getCrc, getCrc, getInnerVersions, getLeafVersions, getPageId, getPageId, getPageIO, getPageIO, getPageIO, getRotatedIdPart, getType, getType, getType, getVersion, getVersion, getVersion, initNewPage, 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 Details

VERSIONS

public static final IOVersions<BPlusMetaIO> VERSIONS

DEFAULT_FLAGS

public static final long DEFAULT_FLAGS

See Also:

• Constant Field Values

Method Details

initRoot

public void initRoot(long pageAdrr,
 long rootId,
 int pageSize)

Parameters:

pageAdrr - Page address.

rootId - Root page ID.

pageSize - Page size.

getLevelsCount

public int getLevelsCount(long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

Number of levels in this tree.

getFirstPageId

public long getFirstPageId(long pageAddr,
 int lvl)

Parameters:

pageAddr - Page address.

lvl - Level.

Returns:

First page ID at that level.

getRootLevel

public int getRootLevel(long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

Root level.

addRoot

public void addRoot(long pageAddr,
 long rootPageId,
 int pageSize)

Parameters:

pageAddr - Page address.

rootPageId - New root page ID.

pageSize - Page size.

cutRoot

public void cutRoot(long pageAddr,
 int pageSize)

Parameters:

pageAddr - Page address.

pageSize - Page size.

setInlineSize

public void setInlineSize(long pageAddr,
 int size)

Parameters:

pageAddr - Page address.

size - Offset size.

getInlineSize

public int getInlineSize(long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

Inline size.

unwrappedPk

public boolean unwrappedPk(long pageAddr)

Returns:

true In case use unwrapped PK.

inlineObjectSupported

public boolean inlineObjectSupported(long pageAddr)

Parameters:

pageAddr - Page address.

Returns:

true In case inline object is supported by the tree.

inlineObjectHash

public boolean inlineObjectHash(long pageAddr)

Whether Java objects should be inlined as hash or as bytes array.

Parameters:

pageAddr - Page address.

supportFlags

public boolean supportFlags()

Returns:

true If flags are supported.

initFlags

public void initFlags(long pageAddr,
 long flags)

Parameters:

pageAddr - Page address.

flags - Flags.

createdVer - The version of the product that creates the page (b+tree).

setFlags

public void setFlags(long pageAddr,
 boolean unwrappedPk,
 boolean inlineObjSupported)

Parameters:

pageAddr - Page address.

unwrappedPk - unwrapped primary key of this tree flag.

inlineObjSupported - inline POJO by created tree flag.

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

upgradePageVersion

public static void upgradePageVersion(long pageAddr,
 boolean inlineObjSupported,
 boolean unwrappedPk,
 int pageSize)

Parameters:

pageAddr - Page address.

inlineObjSupported - Supports inline object flag.

unwrappedPk - Unwrap PK flag.

pageSize - Page size.