public void setProductDescription(String productDescription) {
        this.productDescription = productDescription;
    }
<p>
The product description filter value. Use this parameter to show only those reservations matching the specified
product description.
</p>

@param productDescription
       The product description filter value. Use this parameter to show only those reservations matching the
       specified product description.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/DescribeReservedCacheNodesRequest.java