public Event withSourceIdentifier(String sourceIdentifier) {
        setSourceIdentifier(sourceIdentifier);
        return this;
    }
<p>
Provides the identifier for the source of the event.
</p>

@param sourceIdentifier
       Provides the identifier for the source of the event.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/Event.java