public void setDomainIAMRoleName(String domainIAMRoleName) {
        this.domainIAMRoleName = domainIAMRoleName;
    }
<p>
Specify the name of the IAM role to be used when making API calls to the Directory Service.
</p>

@param domainIAMRoleName
       Specify the name of the IAM role to be used when making API calls to the Directory Service.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/CreateDBInstanceRequest.java