主要介绍了领域驱动设计的基本思想，比较事务脚本和领域模型，同时介绍了领域模型的开发实例。

1. Domain Driven Design
——GAP
ITARI
2009-09-15

2. A. DDD
B. DDD
C. DDD
GAP
Book Store GAP DDD

3. DDD(1)

2004 Eric Evans
Domain-Driven Design –Tackling Complexity in
the Heart of Software —
“ (
DDD)”


4. DDD(2)

OOAD
DDD

DDD


5. DDD
•
•
•
•
•
•
•
•
• CRUD
•

6. DDD
 Design without DDD:
“
” “ ” Service
getter setter
Service



7. DDD (1)

8. DDD (2)
/




9. DDD Ref POJO in action

10. DDD (1)
 Object
 Entities Objects with a distinct identity
ID
 Value objects Objects with no distinct identity
 Factories Define methods for creating entities
 Repositories Manage collections of entities and
encapsulate the persistence framework DAO
 Services Implement responsibilities that can’t be assigned
to a single class and encapsulate the domain model

11. DDD (2)

12. A.
B.
GAP
Book Store GAP DDD

13. (Transaction Script)



CRUD

Service

14. ( )






15. (Domain Model)







16. ( )

17. A. GAP
GAP B. GAP DDD
C.
Book Store GAP DDD

18. GAP (1)

19. GAP (2)
 View GAP B/S
web JSP JS
AJAX
 Control
Action
 Domain
 Persistence O/R
Mapping JDBC
IOC

20. GAP (1)

21. GAP (2)
 GAP
(Business Service)
(DAO)
 (OrderModel)
VO Entity
Entity Entity
 DAO


GAP VO

22. GAP
 Business Service
Business Service
 Domain Model VO Entity
UML



23. GAP
Book Store GAP DDD

24. Book Store-GAP DDD
 Design with DDD:
“ (Domain Driven Design)
”



25. Book Store-GAP DDD
 Package:

26. Book Store-GAP DDD
 Domain Model:

27. Book Store
 (Order)
 gap.template.bookstore.model.Order
 init(Account account,List newItems)
Items
 submit(IBookStoreDao dao,List newItems)
 cancle(IBookStoreDao dao) item
“ ” dao
 dispose(IBookStoreDao dao) service
Acount payment
dispose

28. Book Store
 (Order)

29. Book Store
 (Accoun)
 gap.template.bookstore.model.Account
 payment(IBookStoreDao dao,BigDecimal price)
(
)
dao
 augmentMoney(BigDecimal moeny)
service
 setDiscount isAdmin

30. Book Store
 (Accoun)

31. Book Store
 (Cart)

ItemVO(
javabean) List
 addItem(ItemVO item)
 removeItem(ItemVO item)
 removeItemByBookId(String bookId)
item book bookId item bookId
item

32. Book Store-GAP DDD
 (Cart)

33. Book Store-GAP DDD
Service

34. -

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