public String getReplicationGroupId() {
        return this.replicationGroupId;
    }
<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>

@return 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.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/DescribeReplicationGroupsRequest.java