public String getAuthTokenUpdateStrategy() {
        return this.authTokenUpdateStrategy;
    }
<p>
Specifies the strategy to use to update the AUTH token. This parameter must be specified with the
<code>auth-token</code> parameter. Possible values:
</p>
<ul>
<li>
<p>
ROTATE - default, if no update strategy is provided
</p>
</li>
<li>
<p>
SET - allowed only after ROTATE
</p>
</li>
<li>
<p>
DELETE - allowed only when transitioning to RBAC
</p>
</li>
</ul>
<p>
For more information, see <a
href="http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/auth.html">Authenticating Users with Redis OSS
AUTH</a>
</p>

@return Specifies the strategy to use to update the AUTH token. This parameter must be specified with the
        <code>auth-token</code> parameter. Possible values:</p>
        <ul>
        <li>
        <p>
        ROTATE - default, if no update strategy is provided
        </p>
        </li>
        <li>
        <p>
        SET - allowed only after ROTATE
        </p>
        </li>
        <li>
        <p>
        DELETE - allowed only when transitioning to RBAC
        </p>
        </li>
        </ul>
        <p>
        For more information, see <a
        href="http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/auth.html">Authenticating Users with
        Redis OSS AUTH</a>
@see AuthTokenUpdateStrategyType
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/ModifyCacheClusterRequest.java