public void setPromotionTier(Integer promotionTier) {
        this.promotionTier = promotionTier;
    }
<p>
The order in which to promote an Aurora replica to the primary instance after a failure of the existing primary
instance.
</p>

@param promotionTier
       The order in which to promote an Aurora replica to the primary instance after a failure of the existing
       primary instance.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsRdsDbInstanceDetails.java