com.hazelcast.spi.discovery

Enum DiscoveryStrategyFactory.DiscoveryStrategyLevel

java.lang.Object

java.lang.Enum<DiscoveryStrategyFactory.DiscoveryStrategyLevel>

com.hazelcast.spi.discovery.DiscoveryStrategyFactory.DiscoveryStrategyLevel

All Implemented Interfaces:

Serializable, Comparable<DiscoveryStrategyFactory.DiscoveryStrategyLevel>

Enclosing interface:

DiscoveryStrategyFactory

public static enum DiscoveryStrategyFactory.DiscoveryStrategyLevel
extends Enum<DiscoveryStrategyFactory.DiscoveryStrategyLevel>

Level of the discovery strategy.

Discovery strategies can have different levels. They can be at the level of Cloud Virtual Machines, for example, AWS EC2 Instance or GCP Virtual Machine. They can also be at the level of some specific platform or framework, like Kubernetes.

It decides on the priority in the auto detection mechanism. As an example, let's take Kubernetes environment installed on AWS EC2 instances. In this case two plugins are auto-detected: hazelcast-aws and hazelcast-kubernetes. This level decides which one to pick:

• hazelcast-aws implements level CLOUD_VM
• hazelcast-kubernetes implements level PLATFORM

PLATFORM has higher priority than CLOUD_VM, so hazelcast-kubernetes plugin is selected.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CLOUD_VM VM Machine level, for example, hazelcast-aws or hazelcast-azure.
CUSTOM Custom strategy level, highest priority.
PLATFORM Platform level, for example, hazelcast-kubernetes.
UNKNOWN Level unknown, lowest priority.

Method Summary

Modifier and Type	Method and Description
int	getPriority()
static DiscoveryStrategyFactory.DiscoveryStrategyLevel	valueOf(String name) Returns the enum constant of this type with the specified name.
static DiscoveryStrategyFactory.DiscoveryStrategyLevel[]	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

UNKNOWN

public static final DiscoveryStrategyFactory.DiscoveryStrategyLevel UNKNOWN

Level unknown, lowest priority.

CLOUD_VM

public static final DiscoveryStrategyFactory.DiscoveryStrategyLevel CLOUD_VM

VM Machine level, for example, hazelcast-aws or hazelcast-azure.

PLATFORM

public static final DiscoveryStrategyFactory.DiscoveryStrategyLevel PLATFORM

Platform level, for example, hazelcast-kubernetes.

CUSTOM

public static final DiscoveryStrategyFactory.DiscoveryStrategyLevel CUSTOM

Custom strategy level, highest priority.

Method Detail

values

public static DiscoveryStrategyFactory.DiscoveryStrategyLevel[] 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 (DiscoveryStrategyFactory.DiscoveryStrategyLevel c : DiscoveryStrategyFactory.DiscoveryStrategyLevel.values())
    System.out.println(c);

Returns:

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

valueOf

public static DiscoveryStrategyFactory.DiscoveryStrategyLevel valueOf(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:

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

NullPointerException - if the argument is null

getPriority

public int getPriority()