public void setMetric(String metric) {
        this.metric = metric;
    }
<p>
Which metric Cost Explorer uses to create your forecast.
</p>
<p>
Valid values for a <code>GetUsageForecast</code> call are the following:
</p>
<ul>
<li>
<p>
USAGE_QUANTITY
</p>
</li>
<li>
<p>
NORMALIZED_USAGE_AMOUNT
</p>
</li>
</ul>

@param metric
       Which metric Cost Explorer uses to create your forecast.</p>
       <p>
       Valid values for a <code>GetUsageForecast</code> call are the following:
       </p>
       <ul>
       <li>
       <p>
       USAGE_QUANTITY
       </p>
       </li>
       <li>
       <p>
       NORMALIZED_USAGE_AMOUNT
       </p>
       </li>
@see Metric
aws-java-sdk-costexplorer/src/main/java/com/amazonaws/services/costexplorer/model/GetUsageForecastRequest.java