public DescribeReplicationGroupsRequest withReplicationGroupId(String replicationGroupId) {
        setReplicationGroupId(replicationGroupId);
        return this;
    }
<p>
The identifier for the replication group to be described. This parameter is not case sensitive.
</p>
<p>
If you do not specify this parameter, information about all replication groups is returned.
</p>

@param replicationGroupId
       The identifier for the replication group to be described. This parameter is not case sensitive.</p>
       <p>
       If you do not specify this parameter, information about all replication groups is returned.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/DescribeReplicationGroupsRequest.java