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

@param eventSourceArn
       The Amazon Resource Name (ARN) of the event source.
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/model/EventSourceMappingConfiguration.java