public String getClusterParameterGroupFamily() {
        return this.clusterParameterGroupFamily;
    }
<p>
The name of a specific cluster parameter group family to return details for.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
Must be 1 to 255 alphanumeric characters
</p>
</li>
<li>
<p>
First character must be a letter
</p>
</li>
<li>
<p>
Cannot end with a hyphen or contain two consecutive hyphens
</p>
</li>
</ul>

@return The name of a specific cluster parameter group family to return details for.</p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        Must be 1 to 255 alphanumeric characters
        </p>
        </li>
        <li>
        <p>
        First character must be a letter
        </p>
        </li>
        <li>
        <p>
        Cannot end with a hyphen or contain two consecutive hyphens
        </p>
        </li>
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/DescribeClusterVersionsRequest.java