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
abstract int	correspondingMessagingVersion()
boolean	equals(java.lang.Object o)
SSTableFormat	getSSTableFormat()
java.lang.String	getVersion()
abstract boolean	hasAccurateMinMax()
abstract boolean	hasCommitLogIntervals()
abstract boolean	hasCommitLogLowerBound()
int	hashCode()
abstract boolean	hasIsTransient()
abstract boolean	hasMaxCompressedLength()
abstract boolean	hasMetadataChecksum()
abstract boolean	hasOldBfFormat() The old bloomfilter format serializes the data as BIG_ENDIAN long's, the new one uses the same format as in memory (serializes as bytes).
abstract boolean	hasPendingRepair()
abstract boolean	isCompatible()
abstract boolean	isCompatibleForStreaming()
abstract boolean	isLatestVersion()
java.lang.String	toString()
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()

correspondingMessagingVersion

public abstract int correspondingMessagingVersion()

hasCommitLogLowerBound

public abstract boolean hasCommitLogLowerBound()

hasCommitLogIntervals

public abstract boolean hasCommitLogIntervals()

hasMaxCompressedLength

public abstract boolean hasMaxCompressedLength()

hasPendingRepair

public abstract boolean hasPendingRepair()

hasIsTransient

public abstract boolean hasIsTransient()

hasMetadataChecksum

public abstract boolean hasMetadataChecksum()

hasOldBfFormat

public abstract boolean hasOldBfFormat()

The old bloomfilter format serializes the data as BIG_ENDIAN long's, the new one uses the same format as in memory (serializes as bytes).

Returns:

True if the bloomfilter file is old serialization format

hasAccurateMinMax

public abstract boolean hasAccurateMinMax()

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()

isCompatibleForStreaming

public abstract boolean isCompatibleForStreaming()

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