com.hazelcast.gcp

Class GcpDiscoveryStrategy

java.lang.Object

com.hazelcast.spi.discovery.AbstractDiscoveryStrategy

com.hazelcast.gcp.GcpDiscoveryStrategy

All Implemented Interfaces:

DiscoveryStrategy

public class GcpDiscoveryStrategy
extends AbstractDiscoveryStrategy

GCP implementation of DiscoveryStrategy.

Method Summary

Modifier and Type	Method and Description
Map<String,String>	discoverLocalMetadata() Returns a map with discovered metadata provided by the runtime environment.
Iterable<DiscoveryNode>	discoverNodes() Returns a set of all discovered nodes based on the defined properties that were used to create the DiscoveryStrategy instance.

Methods inherited from class com.hazelcast.spi.discovery.AbstractDiscoveryStrategy

destroy, getLogger, getOrDefault, getOrDefault, getOrNull, getOrNull, getPartitionGroupStrategy, getPartitionGroupStrategy, getProperties, start

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

discoverLocalMetadata

public Map<String,String> discoverLocalMetadata()

Description copied from interface: DiscoveryStrategy

Returns a map with discovered metadata provided by the runtime environment. Those information may include, but are not limited, to location information like datacenter, node name or additional tags to be used for custom purpose.

Information discovered from this method are shaded into the Members attributes. Existing attributes will not be overridden, that way local attribute configuration overrides provided metadata.

The default implementation provides an empty map with no further metadata configured. Returning null is not permitted and will most probably result in an NullPointerException inside the cluster system.

Specified by:

discoverLocalMetadata in interface DiscoveryStrategy

Overrides:

discoverLocalMetadata in class AbstractDiscoveryStrategy

Returns:

a map of discovered metadata as provided by the runtime environment

discoverNodes

public Iterable<DiscoveryNode> discoverNodes()

Description copied from interface: DiscoveryStrategy

Returns a set of all discovered nodes based on the defined properties that were used to create the DiscoveryStrategy instance.

Returns:

a set of all discovered nodes