public String getCACertificateIdentifier() {
        return this.cACertificateIdentifier;
    }
<p>
The identifier of the CA certificate for this DB instance.
</p>

@return The identifier of the CA certificate for this DB instance.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/AwsRdsDbInstanceDetails.java