org.apache.ignite.internal.processors.cache.tree

Class AbstractDataInnerIO

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.BPlusInnerIO<CacheSearchRow>

org.apache.ignite.internal.processors.cache.tree.AbstractDataInnerIO

All Implemented Interfaces:

RowLinkIO

Direct Known Subclasses:

CacheIdAwareDataInnerIO, DataInnerIO

public abstract class AbstractDataInnerIO
extends BPlusInnerIO<CacheSearchRow>
implements RowLinkIO

Field Summary

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, 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_REF_INNER, T_DATA_REF_LEAF, T_DATA_REF_METASTORAGE_INNER, T_DATA_REF_METASTORAGE_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_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 and Description
int	getHash(long pageAddr, int idx)
long	getLink(long pageAddr, int idx)
CacheSearchRow	getLookupRow(BPlusTree<CacheSearchRow,?> tree, long pageAddr, int idx) Get lookup row.
void	store(long dstPageAddr, int dstIdx, BPlusIO<CacheSearchRow> srcIo, long srcPageAddr, int srcIdx) Store row info from the given source.
void	storeByOffset(long pageAddr, int off, CacheSearchRow row) Store the needed info about the row in the page.
protected abstract boolean	storeCacheId()
void	visit(long pageAddr, IgniteInClosure<CacheSearchRow> c)

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

copyItems, getLeft, getMaxCount, getRight, initNewRoot, insert, offset, setLeft

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

canGetRow, getCount, getForward, getItemSize, getRemoveId, initNewPage, isLeaf, merge, printPage, remove, setCount, setForward, setRemoveId, splitExistingPage, splitForwardPage, store

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

getBPlusIO, getBPlusIO, getCrc, getCrc, getInnerVersions, getLeafVersions, getPageId, getPageId, getPageIO, getPageIO, getType, getType, getType, getVersion, getVersion, getVersion, isDataPageType, printPage, registerH2, registerH2ExtraInner, registerH2ExtraLeaf, registerTest, setCrc, setCrc, setPageId, setType, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.cache.tree.RowLinkIO

getCacheId

Method Detail

storeByOffset

public void storeByOffset(long pageAddr,
                          int off,
                          CacheSearchRow 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<CacheSearchRow>

Parameters:

pageAddr - Page address.

off - Offset in bytes.

row - Lookup or full row.

getLookupRow

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

Get lookup row.

Specified by:

getLookupRow in class BPlusIO<CacheSearchRow>

Parameters:

tree - Tree.

pageAddr - Page address.

idx - Index.

Returns:

Lookup row.

store

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

Store row info from the given source.

Specified by:

store in class BPlusIO<CacheSearchRow>

Parameters:

dstPageAddr - Destination page address.

dstIdx - Destination index.

srcIo - Source IO.

srcPageAddr - Source page address.

srcIdx - Source index.

getLink

public long getLink(long pageAddr,
                    int idx)

Specified by:

getLink in interface RowLinkIO

Parameters:

pageAddr - Page address.

idx - Index.

Returns:

Row link.

getHash

public int getHash(long pageAddr,
                   int idx)

Specified by:

getHash in interface RowLinkIO

Parameters:

pageAddr - Page address.

idx - Index.

Returns:

Key hash code.

visit

public void visit(long pageAddr,
                  IgniteInClosure<CacheSearchRow> c)

Overrides:

visit in class BPlusIO<CacheSearchRow>

Parameters:

pageAddr - Page address.

c - Closure.

storeCacheId

protected abstract boolean storeCacheId()

Returns:

True if cache ID has to be stored.