org.axonframework.commandhandling.distributed

Interface ConsistentHashChangeListener

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ConsistentHashChangeListener

Represents a listener that is notified when a ConsistentHash instance of the component it is registered with has changed.

Since:

3.2

Author:

Allard Buijze

Method Summary

Modifier and Type	Method and Description
static ConsistentHashChangeListener	noOp() Returns a No-op version of the functional interface ConsistentHashChangeListener.
void	onConsistentHashChanged(ConsistentHash newConsistentHash) Notification that a consistent hash has changed.

Method Detail

onConsistentHashChanged

void onConsistentHashChanged(ConsistentHash newConsistentHash)

Notification that a consistent hash has changed. Implementations should take into account that this listener my be called concurrently, and that multiple invocations do not necessarily reflect the order in which changes has occurred. If this is important to the implementation, they should verify the ConsistentHash.version() of the given newConsistentHash.

Parameters:

newConsistentHash - The new consistent hash

noOp

static ConsistentHashChangeListener noOp()

Returns a No-op version of the functional interface ConsistentHashChangeListener.

Returns:

a no-op lambda taking a ConsistentHash as its only parameter.