public void setRoleArn(String roleArn) {
        this.roleArn = roleArn;
    }
<p>
The ARN of a role that has permission to create and attach to elastic network interfaces (ENIs).
</p>

@param roleArn
       The ARN of a role that has permission to create and attach to elastic network interfaces (ENIs).
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/VpcDestinationConfiguration.java