org.apache.cassandra.io.sstable.format

Class Version

java.lang.Object

org.apache.cassandra.io.sstable.format.Version

public abstract class Version
extends java.lang.Object

A set of feature flags associated with a SSTable format versions are denoted as [major][minor]. Minor versions must be forward-compatible: new fields are allowed in e.g. the metadata component, but fields can't be removed or have their size changed. Minor versions were introduced with version "hb" for Cassandra 1.0.3; prior to that, we always incremented the major version.

Field Summary

Fields

Modifier and Type	Field and Description
protected SSTableFormat	format
protected java.lang.String	version

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Version(SSTableFormat format, java.lang.String version)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
SSTableFormat	getSSTableFormat()
java.lang.String	getVersion()
abstract boolean	hasAllAdlerChecksums()
abstract boolean	hasCommitLogLowerBound()
int	hashCode()
abstract boolean	hasNewFileName()
abstract boolean	hasNewStatsFile()
abstract boolean	hasRepairedAt()
abstract boolean	hasSamplingLevel()
abstract boolean	isCompatible()
abstract boolean	isLatestVersion()
java.lang.String	toString()
abstract boolean	tracksLegacyCounterShards()
static boolean	validate(java.lang.String ver)

Methods inherited from class java.lang.Object

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

Field Detail

version

protected final java.lang.String version

format

protected final SSTableFormat format

Constructor Detail

Version

protected Version(SSTableFormat format,
                  java.lang.String version)

Method Detail

isLatestVersion

public abstract boolean isLatestVersion()

hasSamplingLevel

public abstract boolean hasSamplingLevel()

hasNewStatsFile

public abstract boolean hasNewStatsFile()

hasAllAdlerChecksums

public abstract boolean hasAllAdlerChecksums()

hasRepairedAt

public abstract boolean hasRepairedAt()

tracksLegacyCounterShards

public abstract boolean tracksLegacyCounterShards()

hasNewFileName

public abstract boolean hasNewFileName()

hasCommitLogLowerBound

public abstract boolean hasCommitLogLowerBound()

getVersion

public java.lang.String getVersion()

getSSTableFormat

public SSTableFormat getSSTableFormat()

validate

public static boolean validate(java.lang.String ver)

Parameters:

ver - SSTable version

Returns:

True if the given version string matches the format.

See Also:

version

isCompatible

public abstract boolean isCompatible()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

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