org.wildfly.clustering.group

Interface Group

All Superinterfaces:

Registrar<GroupListener>

public interface Group
extends Registrar<GroupListener>

Represents a groups of nodes.

Author:

Paul Ferraro

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Group.Listener Deprecated. Replaced by GroupListener.

Method Summary

Modifier and Type	Method and Description
default void	addListener(Group.Listener listener) Deprecated. Replaced by #register(GroupListener).
default Node	getCoordinatorNode() Deprecated. Replaced by Membership.getCoordinator().
Node	getLocalMember() Returns the local member.
default Node	getLocalNode() Deprecated. Replaced by getLocalMember().
Membership	getMembership() Gets the current membership of this group
String	getName() Returns the logical name of this group.
default List<Node>	getNodes() Deprecated. Replaced by Membership#getNodes().
default boolean	isCoordinator() Deprecated. Replaced by Membership.isCoordinator().
default boolean	isLocal() Deprecated. Replaced by isSingleton().
boolean	isSingleton() Indicates whether or not this is a singleton group.
void	removeListener(Group.Listener listener) Deprecated. Replaced by Registration.close()

Methods inherited from interface org.wildfly.clustering.Registrar

register

Method Detail

addListener

@Deprecated
default void addListener(Group.Listener listener)

Deprecated. Replaced by #register(GroupListener).

Registers a membership listener for the group.

Parameters:

listener - listener to be added

removeListener

@Deprecated
void removeListener(Group.Listener listener)

Deprecated. Replaced by Registration.close()

Removes a registered listener from the group.

Parameters:

listener - listener to be removed

getName

String getName()

Returns the logical name of this group.

Returns:

the group name

isCoordinator

@Deprecated
default boolean isCoordinator()

Deprecated. Replaced by Membership.isCoordinator().

Indicates whether or not we are the group coordinator.

Returns:

true, if we are the group coordinator, false otherwise

getLocalNode

@Deprecated
default Node getLocalNode()

Deprecated. Replaced by getLocalMember().

Returns the local node.

getLocalMember

Node getLocalMember()

Returns the local member.

Returns:

the local member

getCoordinatorNode

@Deprecated
default Node getCoordinatorNode()

Deprecated. Replaced by Membership.getCoordinator().

Returns the group coordinator node.

Returns:

the group coordinator node

getNodes

@Deprecated
default List<Node> getNodes()

Deprecated. Replaced by Membership#getNodes().

Returns the list of nodes that are members of this group.

Returns:

a list of nodes

getMembership

Membership getMembership()

Gets the current membership of this group

Returns:

the group membership

isLocal

@Deprecated
default boolean isLocal()

Deprecated. Replaced by isSingleton().

Indicates whether this is a local group. A local group only ever contains a single member.

Returns:

true, if this is a local group, false otherwise.

isSingleton

boolean isSingleton()

Indicates whether or not this is a singleton group. The membership of a singleton group contains only the local member and never changes.

Returns:

true, if this is a singleton group, false otherwise.