public void setRefreshFrequency(String refreshFrequency) {
        this.refreshFrequency = refreshFrequency;
    }
<p>
The frequency with which Amazon Pinpoint evaluates segment and event data for the journey, as a duration in ISO
8601 format.
</p>

@param refreshFrequency
       The frequency with which Amazon Pinpoint evaluates segment and event data for the journey, as a duration
       in ISO 8601 format.
aws-java-sdk-pinpoint/src/main/java/com/amazonaws/services/pinpoint/model/JourneyResponse.java