Package org.apache.cassandra.utils

Enum Class StorageCompatibilityMode

java.lang.Object

java.lang.Enum<StorageCompatibilityMode>

org.apache.cassandra.utils.StorageCompatibilityMode

All Implemented Interfaces:

Serializable, Comparable<StorageCompatibilityMode>, Constable

public enum StorageCompatibilityMode
extends Enum<StorageCompatibilityMode>

The mode of compatibility with older Cassandra versions.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CASSANDRA_4	Stay compatible with Cassandra 4.x, opting out from any new features that will prevent a rollback to 4.x.
NONE	Don't try to be compatible with older versions.
UPGRADING	Use the storage formats of the current version, but disabling features that are not compatible with any not-upgraded nodes in the cluster.

Field Summary

Fields

Modifier and Type	Field	Description
final int	major

Method Summary

Modifier and Type	Method	Description
static StorageCompatibilityMode	current()
boolean	disabled()
boolean	isBefore(int major)
void	validateSstableFormat(SSTableFormat<?,?> selectedFormat)
static StorageCompatibilityMode	valueOf(String name)	Returns the enum constant of this class with the specified name.
static StorageCompatibilityMode[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

CASSANDRA_4

public static final StorageCompatibilityMode CASSANDRA_4

Stay compatible with Cassandra 4.x, opting out from any new features that will prevent a rollback to 4.x. At the moment, this means: - Deletion times will be limited to 2038, instead of the year 2106 limit introduced by 5.0.

UPGRADING

public static final StorageCompatibilityMode UPGRADING

Use the storage formats of the current version, but disabling features that are not compatible with any not-upgraded nodes in the cluster. Use this during rolling upgrades to a new major Cassandra version. Once all nodes have been upgraded, you can set the compatibility to NONE.

NONE

public static final StorageCompatibilityMode NONE

Don't try to be compatible with older versions. Data will be written with the most recent format, which might prevent a rollback to previous Cassandra versions. Features that are not compatible with older nodes will be enabled, assuming that all nodes in the cluster are in the same major version as this node.

Field Details

major

public final int major

Method Details

values

public static StorageCompatibilityMode[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static StorageCompatibilityMode valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

current

public static StorageCompatibilityMode current()

disabled

public boolean disabled()

isBefore

public boolean isBefore(int major)

validateSstableFormat

public void validateSstableFormat(SSTableFormat<?,?> selectedFormat)