public void setThreshold(Double threshold) {
        this.threshold = threshold;
    }
<p>
For the metric that the CloudWatch alarm is associated with, the value the metric is compared with.
</p>

@param threshold
       For the metric that the CloudWatch alarm is associated with, the value the metric is compared with.
aws-java-sdk-route53/src/main/java/com/amazonaws/services/route53/model/CloudWatchAlarmConfiguration.java