public void setAttachmentArn(String attachmentArn) {
        this.attachmentArn = attachmentArn;
    }
<p>
The Amazon Resource Name (ARN) of the attachment.
</p>

@param attachmentArn
       The Amazon Resource Name (ARN) of the attachment.
aws-java-sdk-ecs/src/main/java/com/amazonaws/services/ecs/model/AttachmentStateChange.java