public CreateDBShardGroupRequest withDBClusterIdentifier(String dBClusterIdentifier) {
        setDBClusterIdentifier(dBClusterIdentifier);
        return this;
    }
<p>
The name of the primary DB cluster for the DB shard group.
</p>

@param dBClusterIdentifier
       The name of the primary DB cluster for the DB shard group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBShardGroupRequest.java