public UpdateClusterRequest withPreferredMaintenanceWindow(String preferredMaintenanceWindow) {
        setPreferredMaintenanceWindow(preferredMaintenanceWindow);
        return this;
    }
<p>
A range of time when maintenance of DAX cluster software will be performed. For example:
<code>sun:01:00-sun:09:00</code>. Cluster maintenance normally takes less than 30 minutes, and is performed
automatically within the maintenance window.
</p>

@param preferredMaintenanceWindow
       A range of time when maintenance of DAX cluster software will be performed. For example:
       <code>sun:01:00-sun:09:00</code>. Cluster maintenance normally takes less than 30 minutes, and is
       performed automatically within the maintenance window.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-dax/src/main/java/com/amazonaws/services/dax/model/UpdateClusterRequest.java