public String getCertificateMode() {
        return this.certificateMode;
    }
<p>
Describes the certificate mode in which the Certificate Authority (CA) will be registered. If the
<code>verificationCertificate</code> field is not provided, set <code>certificateMode</code> to be
<code>SNI_ONLY</code>. If the <code>verificationCertificate</code> field is provided, set
<code>certificateMode</code> to be <code>DEFAULT</code>. When <code>certificateMode</code> is not provided, it
defaults to <code>DEFAULT</code>. All the device certificates that are registered using this CA will be
registered in the same certificate mode as the CA. For more information about certificate mode for device
certificates, see <a href=
"https://docs.aws.amazon.com/iot/latest/apireference/API_CertificateDescription.html#iot-Type-CertificateDescription-certificateMode"
> certificate mode</a>.
</p>

@return Describes the certificate mode in which the Certificate Authority (CA) will be registered. If the
        <code>verificationCertificate</code> field is not provided, set <code>certificateMode</code> to be
        <code>SNI_ONLY</code>. If the <code>verificationCertificate</code> field is provided, set
        <code>certificateMode</code> to be <code>DEFAULT</code>. When <code>certificateMode</code> is not
        provided, it defaults to <code>DEFAULT</code>. All the device certificates that are registered using this
        CA will be registered in the same certificate mode as the CA. For more information about certificate mode
        for device certificates, see <a href=
        "https://docs.aws.amazon.com/iot/latest/apireference/API_CertificateDescription.html#iot-Type-CertificateDescription-certificateMode"
        > certificate mode</a>.
@see CertificateMode
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/RegisterCACertificateRequest.java