public String getCertificateArn() {
        return this.certificateArn;
    }
<p>
The Amazon Resource Name (ARN) for the certificate.
</p>
<p>
Example: <code>arn:aws:rds:us-east-1::cert:rds-ca-2019</code>
</p>

@return The Amazon Resource Name (ARN) for the certificate.</p>
        <p>
        Example: <code>arn:aws:rds:us-east-1::cert:rds-ca-2019</code>
aws-java-sdk-docdb/src/main/java/com/amazonaws/services/docdb/model/Certificate.java