public void setValidationMethod(String validationMethod) {
        this.validationMethod = validationMethod;
    }
<p>
The method you want to use if you are requesting a public certificate to validate that you own or control domain.
You can <a href="https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-validate-dns.html">validate with DNS</a>
or <a href="https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-validate-email.html">validate with email</a>.
We recommend that you use DNS validation.
</p>

@param validationMethod
       The method you want to use if you are requesting a public certificate to validate that you own or control
       domain. You can <a
       href="https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-validate-dns.html">validate with DNS</a> or
       <a href="https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-validate-email.html">validate with
       email</a>. We recommend that you use DNS validation.
@see ValidationMethod
aws-java-sdk-acm/src/main/java/com/amazonaws/services/certificatemanager/model/RequestCertificateRequest.java