public void setOperationArn(String operationArn) {
        this.operationArn = operationArn;
    }
<p>
ARN of the cluster operation.
</p>

@param operationArn
       <p>
       ARN of the cluster operation.
       </p>
aws-java-sdk-kafka/src/main/java/com/amazonaws/services/kafka/model/ClusterOperationV2.java