public void setIncidentId(String incidentId) {
        this.incidentId = incidentId;
    }
<p>
The Amazon Resource Name (ARN) of the incident you're listing engagements for.
</p>

@param incidentId
       The Amazon Resource Name (ARN) of the incident you're listing engagements for.
aws-java-sdk-ssmcontacts/src/main/java/com/amazonaws/services/ssmcontacts/model/ListEngagementsRequest.java