public void setDestinationArn(String destinationArn) {
        this.destinationArn = destinationArn;
    }
<p>
This parameter is required if <code>Destination</code> is <code>Evidently</code>. If <code>Destination</code> is
<code>CloudWatch</code>, do not use this parameter.
</p>
<p>
This parameter specifies the ARN of the Evidently experiment that was receiving the metrics that are being
deleted.
</p>

@param destinationArn
       This parameter is required if <code>Destination</code> is <code>Evidently</code>. If
       <code>Destination</code> is <code>CloudWatch</code>, do not use this parameter. </p>
       <p>
       This parameter specifies the ARN of the Evidently experiment that was receiving the metrics that are being
       deleted.
aws-java-sdk-cloudwatchrum/src/main/java/com/amazonaws/services/cloudwatchrum/model/BatchDeleteRumMetricDefinitionsRequest.java