org.apache.cassandra.io.sstable
Class SSTableMetadata

java.lang.Object
  org.apache.cassandra.io.sstable.SSTableMetadata

public class SSTableMetadata
extends java.lang.Object

Metadata for a SSTable. Metadata includes: - estimated row size histogram - estimated column count histogram - replay position - max column timestamp An SSTableMetadata should be instantiated via the Collector, openFromDescriptor() or createDefaultInstance()

Nested Class Summary

static class	SSTableMetadata.Collector
static class	SSTableMetadata.SSTableMetadataSerializer

Field Summary

protected EstimatedHistogram	estimatedColumnCount
protected EstimatedHistogram	estimatedRowSize
protected long	maxTimestamp
protected ReplayPosition	replayPosition
static SSTableMetadata.SSTableMetadataSerializer	serializer

Method Summary

static SSTableMetadata.Collector	createCollector()
static SSTableMetadata	createDefaultInstance()
EstimatedHistogram	getEstimatedColumnCount()
EstimatedHistogram	getEstimatedRowSize()
long	getMaxTimestamp()
ReplayPosition	getReplayPosition()

Methods inherited from class java.lang.Object

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

Field Detail

estimatedRowSize

protected final EstimatedHistogram estimatedRowSize

estimatedColumnCount

protected final EstimatedHistogram estimatedColumnCount

replayPosition

protected final ReplayPosition replayPosition

maxTimestamp

protected final long maxTimestamp

serializer

public static final SSTableMetadata.SSTableMetadataSerializer serializer

Method Detail

createDefaultInstance

public static SSTableMetadata createDefaultInstance()

createCollector

public static SSTableMetadata.Collector createCollector()

getEstimatedRowSize

public EstimatedHistogram getEstimatedRowSize()

getEstimatedColumnCount

public EstimatedHistogram getEstimatedColumnCount()

getReplayPosition

public ReplayPosition getReplayPosition()

getMaxTimestamp

public long getMaxTimestamp()