Greg Young on Architectural Innovation: Eventing, Event Sourcing

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Greg Young on Architectural Innovation: Eventing, Event Sourcing

  1. 1.
  2. 2. Data Storage<br />Domain Object<br />Domain Object<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Send up DTO<br />Status returned<br />Client<br />
  3. 3. Request DTO<br />DTO returned<br />DTO Sent<br />Ack/Nak Response<br />Send DTO Back to Server<br />Show DTO on Screen<br />User Interacts With DTO<br />
  4. 4. Data Storage<br />Domain Object<br />Domain Object<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Send up DTO<br />Status returned<br />Client<br />
  5. 5. Request DTO<br />DTO returned<br />Message Sent<br />Ack/Nak Response<br />Send Messages<br />Show DTO on Screen<br />User Interacts With Screen, Build Messages<br />
  6. 6. Data Storage<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Request DTO<br />DTO returned<br />Client<br />
  7. 7. Data Storage<br />Domain Object<br />Domain Object<br />Application Services<br />Remote Facade<br />Message Sent<br />Ack/Nak Response<br />Client<br />
  8. 8. Data Storage<br />Write (Command)<br />Read (Query)<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Message Sent<br />Ack/Nak Response<br />Client<br />
  9. 9. Data Storage<br />Domain Object<br />Domain Object<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Send up DTO<br />Status returned<br />Client<br />
  10. 10. Data Storage<br />Domain Object<br />Domain Object<br />Domain Object<br />Domain Object<br />Application Services<br />Application Services<br />Remote Facade<br />Remote Facade<br />Request DTO<br />DTO returned<br />Message Sent<br />Ack/Nak Response<br />Client<br />
  11. 11. Data Storage<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Message Sent<br />Ack/Nak Response<br />Client<br />
  12. 12. Data Storage<br />Data Storage<br />Eventually<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />Request DTO<br />DTO returned<br />Message Sent<br />Ack/Nak Response<br />Client<br />
  13. 13. Data Storage<br />Data Storage<br />handlers<br />Events<br />nhibernate<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />
  14. 14.
  15. 15. Data Storage<br />Data Storage<br />handlers<br />Events<br />nhibernate<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />
  16. 16. Data Storage<br />Data Storage<br />handlers<br />handlers<br />Events<br />Events<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />
  17. 17.
  18. 18. Line Items (n)<br />Purchase Order<br />Shipping Information<br />
  19. 19.
  20. 20. Purchase Order<br />AddItemCommand<br />AddItemCommand<br />AddItemEvent<br />ChangeAddressEvent<br />
  21. 21.
  22. 22.
  23. 23.
  24. 24. Event Storage<br />Data Storage<br />handlers<br />Events<br />Events<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />
  25. 25. Event Storage<br />Data Storage<br />Events<br />handlers<br />Events<br />Domain Object<br />Domain Object<br />Thin Read Layer (Direct to DTO)<br />Remote Facade<br />Application Services<br />Remote Facade<br />

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