public void setEvaluationPeriods(Integer evaluationPeriods) {
        this.evaluationPeriods = evaluationPeriods;
    }
<p>
The number of periods over which data is compared to the specified threshold. If you are setting an alarm that
requires that a number of consecutive data points be breaching to trigger the alarm, this value specifies that
number. If you are setting an "M out of N" alarm, this value is the N.
</p>
<p>
An alarm's total current evaluation period can be no longer than one day, so this number multiplied by
<code>Period</code> cannot be more than 86,400 seconds.
</p>

@param evaluationPeriods
       The number of periods over which data is compared to the specified threshold. If you are setting an alarm
       that requires that a number of consecutive data points be breaching to trigger the alarm, this value
       specifies that number. If you are setting an "M out of N" alarm, this value is the N.</p>
       <p>
       An alarm's total current evaluation period can be no longer than one day, so this number multiplied by
       <code>Period</code> cannot be more than 86,400 seconds.
aws-java-sdk-cloudwatch/src/main/java/com/amazonaws/services/cloudwatch/model/PutMetricAlarmRequest.java