public String getGlobalClusterIdentifier() {
        return this.globalClusterIdentifier;
    }
<p>
The user-supplied cluster identifier. If this parameter is specified, information from only the specific cluster
is returned. This parameter isn't case-sensitive.
</p>

@return The user-supplied cluster identifier. If this parameter is specified, information from only the specific
        cluster is returned. This parameter isn't case-sensitive.
aws-java-sdk-docdb/src/main/java/com/amazonaws/services/docdb/model/DescribeGlobalClustersRequest.java