MergeRecord (Ignite 2.17.0)

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.RecordPurpose, WALRecord.RecordType

Constructor Summary

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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
fullPageId, groupId, pageId

Methods inherited from class org.apache.ignite.internal.pagemem.wal.record.WALRecord
chainSize, chainSize, position, position, previous, previous, 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