public String getMapping() {
        return this.mapping;
    }
<p>
Reference to the data element in the streaming input or the reference data source. This element is required if
the <a href=
"https://docs.aws.amazon.com/kinesisanalytics/latest/dev/API_RecordFormat.html#analytics-Type-RecordFormat-RecordFormatTypel"
>RecordFormatType</a> is <code>JSON</code>.
</p>

@return Reference to the data element in the streaming input or the reference data source. This element is
        required if the <a href=
        "https://docs.aws.amazon.com/kinesisanalytics/latest/dev/API_RecordFormat.html#analytics-Type-RecordFormat-RecordFormatTypel"
        >RecordFormatType</a> is <code>JSON</code>.
aws-java-sdk-kinesis/src/main/java/com/amazonaws/services/kinesisanalytics/model/RecordColumn.java