io.lettuce.core.cluster.topology

Interface ClusterTopologyRefresh

public interface ClusterTopologyRefresh

Utility to refresh the cluster topology view based on Partitions.

Author:

Mark Paluch

Method Summary

Modifier and Type	Method and Description
static ClusterTopologyRefresh	create(NodeConnectionFactory nodeConnectionFactory, ClientResources clientResources) Create a new ClusterTopologyRefresh instance.
CompletionStage<Map<RedisURI,Partitions>>	loadViews(Iterable<RedisURI> seed, Duration connectTimeout, boolean discovery) Load topology views from a collection of RedisURIs and return the view per RedisURI.

Method Detail

create

static ClusterTopologyRefresh create(NodeConnectionFactory nodeConnectionFactory,
                                     ClientResources clientResources)

Create a new ClusterTopologyRefresh instance.

Parameters:

nodeConnectionFactory - the connection factory to open connections to specific cluster nodes

clientResources - shared client resources

Returns:

a new ClusterTopologyRefresh instance.

loadViews

CompletionStage<Map<RedisURI,Partitions>> loadViews(Iterable<RedisURI> seed,
                                                    Duration connectTimeout,
                                                    boolean discovery)

Load topology views from a collection of RedisURIs and return the view per RedisURI. Partitions contain an ordered list of RedisClusterNodes. The sort key is latency. Nodes with lower latency come first.

Parameters:

seed - collection of RedisURIs

connectTimeout - connect timeout

discovery - true to discover additional nodes

Returns:

mapping between RedisURI and Partitions