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 - compression ratio - partitioner An SSTableMetadata should be instantiated via the Collector, openFromDescriptor() or createDefaultInstance()

Nested Class Summary

static class	SSTableMetadata.Collector
static class	SSTableMetadata.SSTableMetadataSerializer

Field Summary

double	compressionRatio
EstimatedHistogram	estimatedColumnCount
EstimatedHistogram	estimatedRowSize
long	maxTimestamp
java.lang.String	partitioner
ReplayPosition	replayPosition
static SSTableMetadata.SSTableMetadataSerializer	serializer

Method Summary

static SSTableMetadata.Collector	createCollector()
static SSTableMetadata	createDefaultInstance()

Methods inherited from class java.lang.Object

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

Field Detail

serializer

public static final SSTableMetadata.SSTableMetadataSerializer serializer

estimatedRowSize

public final EstimatedHistogram estimatedRowSize

estimatedColumnCount

public final EstimatedHistogram estimatedColumnCount

replayPosition

public final ReplayPosition replayPosition

maxTimestamp

public final long maxTimestamp

compressionRatio

public final double compressionRatio

partitioner

public final java.lang.String partitioner

Method Detail

createDefaultInstance

public static SSTableMetadata createDefaultInstance()

createCollector

public static SSTableMetadata.Collector createCollector()