Exploring Class Design for Event-Driven Reservation Systems: Mermaid Diagram Representation
Below is an example of a Mermaid class diagram representing the core classes for our event-based reservation system to visualize the relationships between the entities, services, and events. classDiagram %% Domain Entities class Customer { +int Id +string FullName +string Email } class Resource { +int Id +string Name +string Description } class Reservation { +int Id +int CustomerId +int ResourceId +DateTime StartDate +DateTime EndDate +ReservationStatus Status } %% Service Layer class ReservationService { +CreateReservation(customerId: int, resourceId: int, startDate: DateTime, endDate: DateTime) Reservation +CancelReservation(reservationId: int) bool } %% Domain Events class ReservationCreatedEvent { +Guid ReservationId +DateTime CreatedAt +int CustomerId } class ReservationCancelledEvent { +Guid ReservationId +DateTime CancelledAt +int CustomerId } %% Event Handling Component class ReservationEventHandler { +Handle(event: ReservationCreatedEvent) +Handle(event: ReservationCancelledEvent) } %% Associations Customer "1" --o "0..*" Reservation : creates Resource "1" --o "0..*" Reservation : assigned to ReservationService ..> ReservationCreatedEvent : publishes ReservationService ..> ReservationCancelledEvent : publishes ReservationEventHandler ..> ReservationCreatedEvent : handles ReservationEventHandler ..> ReservationCancelledEvent : handles %% Note: ReservationStatus is an enumeration (e.g., Pending, Confirmed, Cancelled) Explanation Domain Entities: ...