org.apache.hadoop.hbase.regionserver

Class MemStoreSnapshot

java.lang.Object

org.apache.hadoop.hbase.regionserver.MemStoreSnapshot

@InterfaceAudience.Private
public class MemStoreSnapshot
extends Object

Holds details of the snapshot taken on a MemStore. Details include the snapshot's identifier, count of cells in it and total memory size occupied by all the cells, timestamp information of all the cells and a scanner to read all cells in it.

Constructor Summary

Constructors

Constructor and Description
MemStoreSnapshot(long id, int cellsCount, long size, TimeRangeTracker timeRangeTracker, KeyValueScanner scanner)

Method Summary

Methods

Modifier and Type	Method and Description
int	getCellsCount()
long	getId()
KeyValueScanner	getScanner()
long	getSize()
TimeRangeTracker	getTimeRangeTracker()

Methods inherited from class java.lang.Object

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

Constructor Detail

MemStoreSnapshot

public MemStoreSnapshot(long id,
                int cellsCount,
                long size,
                TimeRangeTracker timeRangeTracker,
                KeyValueScanner scanner)

Method Detail

getId

public long getId()

Returns:

snapshot's identifier.

getCellsCount

public int getCellsCount()

Returns:

Number of Cells in this snapshot.

getSize

public long getSize()

Returns:

Total memory size occupied by this snapshot.

getTimeRangeTracker

public TimeRangeTracker getTimeRangeTracker()

Returns:

TimeRangeTracker for all the Cells in the snapshot.

getScanner

public KeyValueScanner getScanner()

Returns:

KeyValueScanner for iterating over the snapshot