public DeleteApplicationReferenceDataSourceRequest withApplicationName(String applicationName) {
        setApplicationName(applicationName);
        return this;
    }
<p>
Name of an existing application.
</p>

@param applicationName
       Name of an existing application.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-kinesis/src/main/java/com/amazonaws/services/kinesisanalytics/model/DeleteApplicationReferenceDataSourceRequest.java