Link objectA with ObjectB : UOW salesforce (Database.upsert)

public class UnitOfWorkExample {

    // Custom helper for managing dependencies
    public class UpsertUnitOfWorkHelper implements fflib_SObjectUnitOfWork.IDoWork {
        private ObjectA__c objARecord;
        private ObjectB__c objBRecord;

        public UpsertUnitOfWorkHelper(ObjectA__c objARecord, ObjectB__c objBRecord) {
            this.objARecord = objARecord;
            this.objBRecord = objBRecord;
        }

        public void doWork() {
            // Populate ObjectB's LookupField__c with ObjectA's Id
            objBRecord.LookupField__c = objARecord.Id;
        }
    }

    // Method to handle upserting ObjectA and ObjectB with dependency
    public static void upsertObjects() {
        // Create Unit Of Work
        fflib_SObjectUnitOfWork uow = new fflib_SObjectUnitOfWork(
            new Schema.SObjectType[] {
                ObjectA__c.SObjectType,
                ObjectB__c.SObjectType
            }
        );

        // Prepare ObjectA record
        ObjectA__c objARecord = new ObjectA__c(Name = 'Test A', CustomField__c = 'Value A');

        // Prepare ObjectB record without LookupField__c populated yet
        ObjectB__c objBRecord = new ObjectB__c(Name = 'Test B');

        // Register ObjectA for insert
        uow.registerNew(objARecord);

        // Register custom helper to populate ObjectB's lookup after ObjectA's Id is assigned
        uow.registerWork(new UpsertUnitOfWorkHelper(objARecord, objBRecord));

        // Register ObjectB for insert
        uow.registerNew(objBRecord);

        try {
            // Commit work for both ObjectA and ObjectB in a single transaction
            uow.commitWork();
            System.debug('All records committed successfully.');
        } catch (Exception e) {
            // Handle rollback and log error
            System.debug('Error during commitWork: ' + e.getMessage());
            throw e; // Re-throw to ensure transaction rollback
        }
    }
}