public JobFlowExecutionStatusDetail withStartDateTime(java.util.Date startDateTime) {
        setStartDateTime(startDateTime);
        return this;
    }
<p>
The start date and time of the job flow.
</p>

@param startDateTime
       The start date and time of the job flow.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/JobFlowExecutionStatusDetail.java