RetentionLeaseSyncer (server 6.8.13 API)

```
public interface RetentionLeaseSyncer
```
A functional interface that represents a method for syncing retention leases to replica shards after a new retention lease is added on the primary.

Field Summary

Fields
Modifier and Type Field Description

static RetentionLeaseSyncer EMPTY

Method Summary

Modifier and Type	Method	Description
`void`	`backgroundSync(ShardId shardId, RetentionLeases retentionLeases)`
`void`	`sync(ShardId shardId, RetentionLeases retentionLeases, ActionListener<ReplicationResponse> listener)`	Represents a method that when invoked syncs retention leases to replica shards after a new retention lease is added on the primary.

- Field Detail
  - EMPTY
```
static final RetentionLeaseSyncer EMPTY
```
- Method Detail
  - sync
```
void sync(ShardId shardId,
          RetentionLeases retentionLeases,
          ActionListener<ReplicationResponse> listener)
```
    Represents a method that when invoked syncs retention leases to replica shards after a new retention lease is added on the primary. The specified listener is invoked when the syncing completes with success or failure.
    
    Parameters:
    
    shardId - the shard ID
    
    retentionLeases - the retention leases to sync
    
    listener - the callback when sync completes
  - backgroundSync
```
void backgroundSync(ShardId shardId,
                    RetentionLeases retentionLeases)
```