org.apache.ignite.internal.pagemem.wal.record.delta

Class MergeRecord<L>

java.lang.Object

org.apache.ignite.internal.pagemem.wal.record.WALRecord

org.apache.ignite.internal.pagemem.wal.record.delta.PageDeltaRecord

org.apache.ignite.internal.pagemem.wal.record.delta.MergeRecord<L>

All Implemented Interfaces:

WalRecordCacheGroupAware

public class MergeRecord<L>
extends PageDeltaRecord

Merge on remove.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ignite.internal.pagemem.wal.record.WALRecord

WALRecord.RecordType

Constructor Summary

Constructors

Constructor and Description
MergeRecord(int grpId, long pageId, long prntId, int prntIdx, long rightId, boolean emptyBranch)

Method Summary

Modifier and Type	Method and Description
void	applyDelta(PageMemory pageMem, long pageAddr) Apply changes from this delta to the given page.
boolean	isEmptyBranch()
long	parentId()
int	parentIndex()
long	rightId()
String	toString()
WALRecord.RecordType	type()

Methods inherited from class org.apache.ignite.internal.pagemem.wal.record.delta.PageDeltaRecord

groupId, pageId

Methods inherited from class org.apache.ignite.internal.pagemem.wal.record.WALRecord

chainSize, chainSize, position, position, previous, previous, rollOver, size, size

Methods inherited from class java.lang.Object

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

Constructor Detail

MergeRecord

public MergeRecord(int grpId,
                   long pageId,
                   long prntId,
                   int prntIdx,
                   long rightId,
                   boolean emptyBranch)

Parameters:

grpId - Cache group ID.

pageId - Page ID.

prntId - Parent ID.

prntIdx - Index in parent page.

rightId - Right ID.

emptyBranch - We are merging empty branch.

Method Detail

applyDelta

public void applyDelta(PageMemory pageMem,
                       long pageAddr)
                throws IgniteCheckedException

Apply changes from this delta to the given page. It is assumed that the given buffer represents page state right before this update.

Specified by:

applyDelta in class PageDeltaRecord

Parameters:

pageMem - Page memory.

pageAddr - Page address.

Throws:

IgniteCheckedException - If failed.

type

public WALRecord.RecordType type()

Specified by:

type in class WALRecord

Returns:

Entry type.

parentId

public long parentId()

parentIndex

public int parentIndex()

rightId

public long rightId()

isEmptyBranch

public boolean isEmptyBranch()

toString

public String toString()

Overrides:

toString in class PageDeltaRecord