Package com.hazelcast.spi.partitiongroup

Enum Class PartitionGroupMetaData

java.lang.Object

java.lang.Enum<PartitionGroupMetaData>

com.hazelcast.spi.partitiongroup.PartitionGroupMetaData

All Implemented Interfaces:

Serializable, Comparable<PartitionGroupMetaData>, Constable

public enum PartitionGroupMetaData
extends Enum<PartitionGroupMetaData>

This class contains the definition of known Discovery SPI metadata to support automatic generation of zone aware and node aware backup strategies. Zone aware backup strategies are based on cloud or service discovery provided information. A zone is the term used to refer low-latency link between (virtual) data centers in the same area. Node aware backup strategy is based on name of the node which is provided by container orchestration tool. like Kubernetes, Docker Swarm and ECS. A node is the term used to refer machine that containers/pods run on. A node may be a virtual or physical machine. Placement aware backup strategy is based on the placement strategies of the virtual machines on which Hazelcast members run. Unlike zone aware, this strategy can group members within a single availability zone based on their racks, power sources, network, etc.

Nested Class Summary

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

Enum.EnumDesc<E extends Enum<E>>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PARTITION_GROUP_NODE	Metadata key definition for a node machine that containers/pods run on, in case of container orchestration tools being used.
static final String	PARTITION_GROUP_PLACEMENT	Metadata key definition for the placement group to which VMs belong if a placement strategy is applied by cloud providers.
static final String	PARTITION_GROUP_ZONE	Metadata key definition for a low-latency link between (virtual) data centers in the same area

Method Summary

Modifier and Type	Method	Description
static PartitionGroupMetaData	valueOf(String name)	Returns the enum constant of this class with the specified name.
static PartitionGroupMetaData[]	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

Field Details

PARTITION_GROUP_ZONE

public static final String PARTITION_GROUP_ZONE

Metadata key definition for a low-latency link between (virtual) data centers in the same area

See Also:

• Constant Field Values

PARTITION_GROUP_NODE

public static final String PARTITION_GROUP_NODE

Metadata key definition for a node machine that containers/pods run on, in case of container orchestration tools being used.

See Also:

• Constant Field Values

PARTITION_GROUP_PLACEMENT

public static final String PARTITION_GROUP_PLACEMENT

Metadata key definition for the placement group to which VMs belong if a placement strategy is applied by cloud providers.

See Also:

• Constant Field Values

Method Details

values

public static PartitionGroupMetaData[] 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 PartitionGroupMetaData 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