org.wildfly.clustering.group

Interface Membership

public interface Membership

Encapsulates an immutable membership of a group.

Author:

Paul Ferraro

Method Summary

Modifier and Type	Method and Description
Node	getCoordinator() Returns the coordinator node of this group membership.
List<Node>	getMembers() Returns the nodes that comprise this group membership.
boolean	isCoordinator() Indicates whether or not the local node is the coordinator of this group membership.

Method Detail

isCoordinator

boolean isCoordinator()

Indicates whether or not the local node is the coordinator of this group membership. Semantically equivalent to: group.getLocalNode().equals(#getCoordinator())

Returns:

true, if we are the group membership coordinator, false otherwise

getCoordinator

Node getCoordinator()

Returns the coordinator node of this group membership. All nodes of this membership will always agree on which node is the coordinator.

Returns:

the group coordinator node

getMembers

List<Node> getMembers()

Returns the nodes that comprise this group membership. The membership order will be consistent on each node in the group.

Returns:

a list of nodes ordered by descending age.