public String getGlobalClusterIdentifier() {
        return this.globalClusterIdentifier;
    }
<p>
The global cluster ID of an Aurora cluster that becomes the primary cluster in the new global database cluster.
</p>
<p>
Valid for Cluster Type: Aurora DB clusters only
</p>

@return The global cluster ID of an Aurora cluster that becomes the primary cluster in the new global database
        cluster.</p>
        <p>
        Valid for Cluster Type: Aurora DB clusters only
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBClusterRequest.java