public void setDate(DateReference date) {
        this.date = date;
    }
<p>
Information about a reference when the <code>referenceType</code> is <code>DATE</code>. Otherwise, null.
</p>

@param date
       Information about a reference when the <code>referenceType</code> is <code>DATE</code>. Otherwise, null.
aws-java-sdk-connect/src/main/java/com/amazonaws/services/connect/model/ReferenceSummary.java