public String getDBInstanceIdentifier() {
        return this.dBInstanceIdentifier;
    }
<p>
The DB instance identifier of the read replica. This identifier is the unique key that identifies a DB instance.
This parameter is stored as a lowercase string.
</p>

@return The DB instance identifier of the read replica. This identifier is the unique key that identifies a DB
        instance. This parameter is stored as a lowercase string.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBInstanceReadReplicaRequest.java