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, ImmutableSegment snapshot)

Method Summary

Modifier and Type	Method and Description
int	getCellsCount()
long	getDataSize()
long	getHeapSize()
long	getId()
List<KeyValueScanner>	getScanners()
TimeRangeTracker	getTimeRangeTracker()
boolean	isTagsPresent()

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,
                        ImmutableSegment snapshot)

Method Detail

getId

public long getId()

Returns:

snapshot's identifier.

getCellsCount

public int getCellsCount()

Returns:

Number of Cells in this snapshot.

getDataSize

public long getDataSize()

Returns:

Total memory size occupied by this snapshot.

getHeapSize

public long getHeapSize()

getTimeRangeTracker

public TimeRangeTracker getTimeRangeTracker()

Returns:

TimeRangeTracker for all the Cells in the snapshot.

getScanners

public List<KeyValueScanner> getScanners()

Returns:

KeyValueScanner for iterating over the snapshot

isTagsPresent

public boolean isTagsPresent()

Returns:

true if tags are present in this snapshot