public void setApplicationArn(String applicationArn) {
        this.applicationArn = applicationArn;
    }
<p>
The ARN of the application provider under which the operation will run.
</p>

@param applicationArn
       The ARN of the application provider under which the operation will run.
aws-java-sdk-ssoadmin/src/main/java/com/amazonaws/services/ssoadmin/model/CreateApplicationAssignmentRequest.java