public ScheduledInstanceRecurrenceRequest withFrequency(String frequency) {
        setFrequency(frequency);
        return this;
    }
<p>
The frequency (<code>Daily</code>, <code>Weekly</code>, or <code>Monthly</code>).
</p>

@param frequency
       The frequency (<code>Daily</code>, <code>Weekly</code>, or <code>Monthly</code>).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/ScheduledInstanceRecurrenceRequest.java