public void setDBClusterIdentifier(String dBClusterIdentifier) {
        this.dBClusterIdentifier = dBClusterIdentifier;
    }
<p>
The user-provided cluster identifier. If this parameter is specified, information from only the specific cluster
is returned. This parameter isn't case sensitive.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
If provided, must match an existing <code>DBClusterIdentifier</code>.
</p>
</li>
</ul>

@param dBClusterIdentifier
       The user-provided cluster identifier. If this parameter is specified, information from only the specific
       cluster is returned. This parameter isn't case sensitive.</p>
       <p>
       Constraints:
       </p>
       <ul>
       <li>
       <p>
       If provided, must match an existing <code>DBClusterIdentifier</code>.
       </p>
       </li>
aws-java-sdk-docdb/src/main/java/com/amazonaws/services/docdb/model/DescribeDBClustersRequest.java