io.atomix.coordination

Interface GroupMember

public interface GroupMember

Provides an interface to interacting with members of a DistributedMembershipGroup.

A GroupMember represents a reference to a single instance of a resource which has joined a membership group. Each member is guaranteed to have a unique id() throughout the lifetime of the distributed resource. Group members can schedule or execute callbacks remotely on member nodes.

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Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	execute(Runnable callback) Executes a callback on the group member.
long	id() Returns the member ID.
CompletableFuture<Void>	schedule(Duration delay, Runnable callback) Schedules a callback to run after the given delay on the member.
CompletableFuture<Void>	schedule(Instant instant, Runnable callback) Schedules a callback to run at the given instant.

Method Detail

id

long id()

Returns the member ID.

Returns:

The member ID.

schedule

CompletableFuture<Void> schedule(Instant instant,
                                 Runnable callback)

Schedules a callback to run at the given instant.

Parameters:

instant - The instant at which to run the callback.

callback - The callback to run.

Returns:

A completable future to be completed once the callback has been scheduled.

schedule

CompletableFuture<Void> schedule(Duration delay,
                                 Runnable callback)

Schedules a callback to run after the given delay on the member.

Parameters:

delay - The delay after which to run the callback.

callback - The callback to run.

Returns:

A completable future to be completed once the callback has been scheduled.

execute

CompletableFuture<Void> execute(Runnable callback)

Executes a callback on the group member.

Parameters:

callback - The callback to execute.

Returns:

A completable future to be completed once the callback has completed.