org.apache.cassandra.io.sstable.metadata

Class StatsMetadata

java.lang.Object

org.apache.cassandra.io.sstable.metadata.MetadataComponent

org.apache.cassandra.io.sstable.metadata.StatsMetadata

All Implemented Interfaces:

java.lang.Comparable<MetadataComponent>

public class StatsMetadata
extends MetadataComponent

SSTable metadata that always stay on heap.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StatsMetadata.StatsMetadataSerializer

Field Summary

Fields

Modifier and Type	Field and Description
IntervalSet<CommitLogPosition>	commitLogIntervals
static ISerializer<IntervalSet<CommitLogPosition>>	commitLogPositionSetSerializer
double	compressionRatio
EstimatedHistogram	estimatedColumnCount
EstimatedHistogram	estimatedPartitionSize
StreamingHistogram	estimatedTombstoneDropTime
boolean	hasLegacyCounterShards
java.util.List<java.nio.ByteBuffer>	maxClusteringValues
int	maxLocalDeletionTime
long	maxTimestamp
int	maxTTL
java.util.List<java.nio.ByteBuffer>	minClusteringValues
int	minLocalDeletionTime
long	minTimestamp
int	minTTL
java.util.UUID	originatingHostId
long	repairedAt
static IMetadataComponentSerializer	serializer
int	sstableLevel
long	totalColumnsSet
long	totalRows

Constructor Summary

Constructors

Constructor and Description

StatsMetadata(EstimatedHistogram estimatedPartitionSize, EstimatedHistogram estimatedColumnCount, IntervalSet<CommitLogPosition> commitLogIntervals, long minTimestamp, long maxTimestamp, int minLocalDeletionTime, int maxLocalDeletionTime, int minTTL, int maxTTL, double compressionRatio, StreamingHistogram estimatedTombstoneDropTime, int sstableLevel, java.util.List<java.nio.ByteBuffer> minClusteringValues, java.util.List<java.nio.ByteBuffer> maxClusteringValues, boolean hasLegacyCounterShards, long repairedAt, long totalColumnsSet, long totalRows, java.util.UUID originatingHostId)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
double	getDroppableTombstonesBefore(int gcBefore)
double	getEstimatedDroppableTombstoneRatio(int gcBefore)
MetadataType	getType()
int	hashCode()
StatsMetadata	mutateLevel(int newLevel)
StatsMetadata	mutateRepairedAt(long newRepairedAt)

Methods inherited from class org.apache.cassandra.io.sstable.metadata.MetadataComponent

compareTo

Methods inherited from class java.lang.Object

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

Field Detail

serializer

public static final IMetadataComponentSerializer serializer

commitLogPositionSetSerializer

public static final ISerializer<IntervalSet<CommitLogPosition>> commitLogPositionSetSerializer

estimatedPartitionSize

public final EstimatedHistogram estimatedPartitionSize

estimatedColumnCount

public final EstimatedHistogram estimatedColumnCount

commitLogIntervals

public final IntervalSet<CommitLogPosition> commitLogIntervals

minTimestamp

public final long minTimestamp

maxTimestamp

public final long maxTimestamp

minLocalDeletionTime

public final int minLocalDeletionTime

maxLocalDeletionTime

public final int maxLocalDeletionTime

minTTL

public final int minTTL

maxTTL

public final int maxTTL

compressionRatio

public final double compressionRatio

estimatedTombstoneDropTime

public final StreamingHistogram estimatedTombstoneDropTime

sstableLevel

public final int sstableLevel

minClusteringValues

public final java.util.List<java.nio.ByteBuffer> minClusteringValues

maxClusteringValues

public final java.util.List<java.nio.ByteBuffer> maxClusteringValues

hasLegacyCounterShards

public final boolean hasLegacyCounterShards

repairedAt

public final long repairedAt

totalColumnsSet

public final long totalColumnsSet

totalRows

public final long totalRows

originatingHostId

public final java.util.UUID originatingHostId

Constructor Detail

StatsMetadata

public StatsMetadata(EstimatedHistogram estimatedPartitionSize,
                     EstimatedHistogram estimatedColumnCount,
                     IntervalSet<CommitLogPosition> commitLogIntervals,
                     long minTimestamp,
                     long maxTimestamp,
                     int minLocalDeletionTime,
                     int maxLocalDeletionTime,
                     int minTTL,
                     int maxTTL,
                     double compressionRatio,
                     StreamingHistogram estimatedTombstoneDropTime,
                     int sstableLevel,
                     java.util.List<java.nio.ByteBuffer> minClusteringValues,
                     java.util.List<java.nio.ByteBuffer> maxClusteringValues,
                     boolean hasLegacyCounterShards,
                     long repairedAt,
                     long totalColumnsSet,
                     long totalRows,
                     java.util.UUID originatingHostId)

Method Detail

getType

public MetadataType getType()

Specified by:

getType in class MetadataComponent

Returns:

Metadata component type

getEstimatedDroppableTombstoneRatio

public double getEstimatedDroppableTombstoneRatio(int gcBefore)

Parameters:

gcBefore - gc time in seconds

Returns:

estimated droppable tombstone ratio at given gcBefore time.

getDroppableTombstonesBefore

public double getDroppableTombstonesBefore(int gcBefore)

Parameters:

gcBefore - gc time in seconds

Returns:

amount of droppable tombstones

mutateLevel

public StatsMetadata mutateLevel(int newLevel)

mutateRepairedAt

public StatsMetadata mutateRepairedAt(long newRepairedAt)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object