public GetEventSourceMappingResult withEventSourceArn(String eventSourceArn) {
        setEventSourceArn(eventSourceArn);
        return this;
    }
<p>
The Amazon Resource Name (ARN) of the event source.
</p>

@param eventSourceArn
       The Amazon Resource Name (ARN) of the event source.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/model/GetEventSourceMappingResult.java