Package org.apache.cassandra.utils

Enum StorageCompatibilityMode

java.lang.Object

java.lang.Enum<StorageCompatibilityMode>

org.apache.cassandra.utils.StorageCompatibilityMode

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<StorageCompatibilityMode>

public enum StorageCompatibilityMode
extends java.lang.Enum<StorageCompatibilityMode>

The mode of compatibility with older Cassandra versions.

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
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(java.lang.String name)	Returns the enum constant of this type with the specified name.
static StorageCompatibilityMode[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

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 Detail

major

public final int major

Method Detail

values

public static StorageCompatibilityMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (StorageCompatibilityMode c : StorageCompatibilityMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static StorageCompatibilityMode valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.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)