public Integer getPromotionTier() {
        return this.promotionTier;
    }
<p>
Specifies the order in which an Aurora replica is promoted to the primary instance when the existing primary
instance fails.
</p>

@return Specifies the order in which an Aurora replica is promoted to the primary instance when the existing
        primary instance fails.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsRdsDbClusterMember.java