public void setChannelArn(String channelArn) {
        this.channelArn = channelArn;
    }
<p>
The ARN of an channel returned by a <code>GetChannel</code> request.
</p>

@param channelArn
       The ARN of an channel returned by a <code>GetChannel</code> request.
aws-java-sdk-cloudtrail/src/main/java/com/amazonaws/services/cloudtrail/model/GetChannelResult.java