public void setTriggerArn(String triggerArn) {
        this.triggerArn = triggerArn;
    }
<p>
The Amazon Resource Name (ARN) of the source that detected the incident.
</p>

@param triggerArn
       The Amazon Resource Name (ARN) of the source that detected the incident.
aws-java-sdk-ssmincidents/src/main/java/com/amazonaws/services/ssmincidents/model/TriggerDetails.java